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  • Additional Heat Countermeasures to be Deployed at Tokyo 2020 Games


    11/15/19

    Updated measures aim to allow athletes and spectators to remain as cool and hydrated as possible

    (Tokyo 2020) today disclosed details of the progress made with heat countermeasures planned for the
    Tokyo 2020 Games. The announcement included an overview of how the plans will be implemented, with
    the aim of minimising the impact of the heat on all those competing in, attending or working at the Tokyo
    2020 Games.

    At a number of Tokyo 2020 outdoor test events this summer, Tokyo 2020 and the Tokyo Metropolitan
    Government held tests of some of its planned heat countermeasures in collaboration with the national
    government and national and international sport federations. A wide range of measures designed to offer
    protection for athletes, spectators, Games staff and media personnel were exhaustively tested, including
    the provision of cooling mist sprays and shading tents. As part of the planned package of measures,
    Tokyo 2020 also published heatstroke alerts via a test event website.

    Following these tests, Tokyo 2020 and other related parties reviewed the original range of planned heat
    countermeasures and are now proposing additional measures for specific sports and venues, aiming to
    allow everyone to remain as cool and hydrated as possible at the Tokyo 2020 Games. Adjustments to
    the schedules of some events, including triathlon and Olympic Equestrian (Eventing, (Cross Country)),
    are being considered. In addition, the relevant regulations of each international federation, including the
    provision of adequate cooling breaks between events, will be fully implemented. Please see the below
    appendixes for details of the proposed additional heat countermeasures.

    Tokyo 2020 will continue to work with all related parties on the preparation of comprehensive heat
    countermeasures.

    The Tokyo Organising Committee of the Olympic and Paralympic Games Games Delivery Office
    November 15, 2019

    Agenda
    1. Heat Countermeasures
    1) Overview of Heat Countermeasures
    2) Attempts Made This Summer
    3) Progress on Heat Countermeasures
    a) For Athletes
    b) For Spectators
    ①Information Provision
    ②Measures at Venues
    c) For Workforce
    d) For Media
    e) Tokyo 2020 Cooling Project
    2. Sport Competition Management
    3. Typhoon Response
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    1 Overall Heat Countermeasures Policy
    We will establish detailed measures for overall games operation
    1Overview of Heat Countermeasures for Tokyo 2020 Games
    ⇒consider per stakeholder, per situation; conduct in cooperation with Japan Government,
    Tokyo Metropolitan Government, IOC, IF/NF
    2Heat Countermeasures per Stakeholder
    (1) Heat Countermeasures for Spectators
    (2) Heat Countermeasures for Workforce including Volunteers
    (3) Heat Countermeasures for Athletes
    3Make use of experiences from this Summer during the Games
    3
    1-1. Overview of Heat Countermeasures
    Measures by stakeholder

    Consider additional heat countermeasures by venue and make use of
    experiences during the actual Games next summer
    ■Conducted by Tokyo2020 and TMG
    mainly at Wave 1 outdoor test events, in
    cooperation with Government of Japan
    and IF/NFs.
    ➀Beach Volleyball Shiokaze Park
    2019.7/24〜28 IF/NF
    ➁Rowing Sea Forest Waterway
    2019.8/7〜11 IF/NF
    ③Triathlon Odaiba Marine Park
    2019.8/15〜18 IF/NF
    ④Hockey Oi Hockey Stadium
    2019.8/17〜21 Tokyo2020
    ⑤Marathon Marathon Route
    2019.9/15 NF
    Trial at Test Events
    〇 Distribution of leaflet
    in English
    〇 Questionnaire
    (In cooperation with
    Japan Tourism Agency
    and Ministry of the
    Environment)
    For Overseas Visitors
    ○ Conducted “Ideathon”
    ○ Conducted observation
    and study of summer
    sport events
    Ideathon etc.
    Test Event for Heat Countermeasures
    1-2. Attempts Made this Summer
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    Contents of Trial
    For Athletes ・Heat countermeasures for each sport with
    Games time in mind
    ‣Basic heat countermeasures such as athlete lounge with air-conditioner,
    provision of water and ice, installment of ice bath, portable cooler and mist fan
    ‣Heat countermeasures tailored to specific sports
    Information Provision ・Trial of information provision on the Test
    Event webpage
    ・Questionnaire in cooperation with
    Government of Japan
    ‣Heatstroke risk information posted on the Test Event webpage for Cycling
    (Road) (MTB)
    ‣Questionnaire to overseas visitors in cooperation with Ministry of the
    Environment and Japan Tourism Agency
    For Spectators ・Trial of queues at mock PSA
    ・Measurement of WBGT index
    ・Patrol by first responders
    ・Proactive announcement
    ・Distribution of heat mitigation goods
    ・Cool off space
    ・Snowmaking machine
    ‣Validation of operations for queues at PSA
    ‣Utilisation of large cooling fans, electric fans and hand-held mist sprays
    ‣Measurement at inside and outside tents, spectator seats, tree shade, staff
    room and loading zone
    ‣Patrol by staff to recommend rehydration
    ‣Early detection of persons feeling unwell, cooperation with medical area
    ‣Proactive announcements, provision of paper fans
    ‣Distribution of neck cooling towels, paper fans etc. (Last Mile)
    ‣Measurement of WBGT inside the space, monitoring users
    ‣Analysis of machine effect, measurement of WBGT index
    For Workforce ・Rotation Policy
    (Break policy)
    ・Distribution of heat mitigation goods
    ‣Examination of the rotation (break) policy
    ‣Questionnaire for feedback from Field Cast, Volunteers
    ‣Provision of bottled water at all venues, salt supplements, cool towels, cooling
    sheets, ice cream and health control check sheets at some venues
    ‣Distribution of items and questionnaire for volunteers to determine the
    effectiveness of those items
    1-2. Attempts Made this Summer Trial at Test Events
    Conducted by Tokyo2020 and TMG mainly at Wave 1 outdoor test events, in
    cooperation with Government of Japan and IF/NFs.
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    Example: Beach Volleyball at Shiokaze Park (July 25th Content Photo WBGT Index・Survey・Feedback ) Issues
    Shade tents for queues at PSA  WBGT index measured inside the tent was lower
    by 1.0~2.7°C than that of outside.
     80% of participants answered that they felt cooler
    when they entered the tent.
     Examine necessary number of tents for venues
    expected to have queues with long wait time
    outside tents
    Air circulation via large cooling fan
    Air circulation for spectators waiting
    inside the tent in front of PSA
     90% of participants answered that a large cooling
    fan was effective.
     Feedback included opinions that air circulation
    should be multi‐directional and fans outside the
    tent are also necessary.
     An effective way to circulate air to make queues
    feel cool such as ventilating from left and right
    and utilising a swinging cooling fan
     Ensure sufficient power sources in case of
    additional installation
    Mist sprayed by hand‐held
    equipment
    Mist sprayed to queues at PSA to cool
    down and to entertain
     75% answered that they would not mind getting
    wet.
     Negative feedback: concern about ruining makeup,
    sunscreen, hairstyle, mobile phone, glasses etc.
     Selection of equipment such as electric mister and
    device with fine mist
     How to spray persons who do not want to get wet.
     Ensure hygiene of mist water
     How to use it to entertain spectators
    Distribution of heat mitigation
    goods
    Paper fans, cool neck towels etc.
     Overall positive feedback for paper fans and cool
    neck towels
     Confirmation of use of intellectual property
    rights for design and the emblems
    Operation of cool off space
    Installation of air‐conditioned tent with
    sidewalls at FOH
     Workforce occupied the space more than
    spectators.
     It is difficult to maintain 26°C during hot and peak
    hours.
     Consideration of ways to maintain temperature
     Decision on target users and system of operation
    Utilisation of snowmaking machine  An effective way to cool down and entertain
     Negative feedback on getting wet and steps
    becoming slippery.
     Consideration of the wind direction and the area
    the snow will cover
    1-2. Attempts Made this Summer Trial at Test Events
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    Tokyo 2020 Ideathon Vol. 3 Let’s Beat the Heat Assembly
    Date: 2019/9/25 Thu. 7pm‐10pm
    <Objective>
    ① Generate broad range of ideas ② Raise awareness of importance of protecting self and assisting others
    More than 50 participants generated ideas for heat countermeasures and personal
    action (toward self or others) they could take themselves Tokyo2020 asked for ideas
    on three themes to be freely discussed by the group of participants made up of young
    entrepreneurs, students and people with knowledge of or interest in heat measures.
    <Theme>
    ① Simple measures that can help self and others via local collaboration
    ② Information dispatching methods that can inform and help visitors from overseas
    ③ Environmentally friendly ideas considering the future and protecting the earth
    1-2. Attempts Made this Summer
    Ideathon - Overview
    ※ Ideathon = “Idea + Marathon” event where a group of diverse members discuss on particular themes to seek new ideas.
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    Presented Ideas (e.g.) To consider for possible implementation
    • Enhance communication among neighboring spectators by encouraging it on the Presentation Board – make it easier to ask for help if you are feeling unwell
    • Entertain spectators to enhance consuming liquid periodically – “kampai” with water and music
    • Develop finger pointable communication sheet and include in guidebook for easier communication
    • Promote the importance of consuming liquid by having the official mascot characters drink water
    • Provide a Cooling Spot Map in the official app and make it possible find close areas to cool down
    • Offer rental parasol service from the station to the venue entrance
    • Dispatch information and alert arriving overseas visitors by asking airlines to make PA announcement or broadcasting at the airport
    • Produce cooling gel pads with national flag designs
    Classify and take plausible ideas
    to related FAs to discuss.
    Ideathon - Outcome
    1-2. Attempts Made this Summer
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    1-2. Attempts Made this Summer
    Issues Revealed from Test Events
    For Athletes
    Information Provision
    For Spectators
    For Workforce
    ・Additional measures for shade
    ・Supply of drinking water
    ・Operations in the case of heatstroke patients
    ・Measurement of WBGT index, examination of operations
    ・Paid Staff: Raising awareness and providing more knowledge on the
    importance of personal countermeasures
    ・Games Volunteers: Further enhance the knowledge of heat
    countermeasures
    ・Provision of heat mitigation goods and drinks
    ・Reexamine the rotation/break policy and the distance to the rest area
    ・ Effective methods of informing overseas visitors about heat in
    Japan and how to avoid heatstroke
    ・Consideration of audio+visual announcement and operations
    integrated into sport presentations
    ・Competition schedule
    ・Heat countermeasures for respective sport
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    1-3. Heat countermeasures
    a) for Athletes
    In close cooperation with relevant stakeholders such as the IOC, the IPC,
    the IFs and partners, the best possible heat countermeasures for athletes to
    ensure their peak performance will be prepared.
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    What we have done so far:
    1. Until Summer 2019
    In order to implement appropriate heat countermeasures for athletes,
    Tokyo 2020 has been closely working together with stakeholders
    including the IOC, the IPC, the IFs, the Government of Japan, the Tokyo
    Metropolitan Government (e.g. competition schedule change) and
    partners.
    2. June-September 2019
    With the Games time in mind, Tokyo 2020 has tested the various heat
    countermeasures for athletes at Test Event Wave 1 this summer.
    3. September 2019 -
    Based on this summerʼs Test Events, Tokyo 2020 has reached out to
    each Olympic and Paralympic IF with a heat countermeasures
    questionnaire in September and is currently considering the measures to
    be taken.
    1-3. Heat countermeasures
    a) for Athletes
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    Common heat countermeasures at Test Event Wave1
    Tokyo 2020 prepared facilities & equipment and provided water and ice after close consultation with the IFs.
    Athletes’ lounge with air conditioner Water Ice
    Ice bath Portable air conditioner Mist fan
    1-3. Heat countermeasures
    a) for Athletes
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    Water moto* (Cycling Road) Horse cooling station (Equestrian)
    *Water supply for athletes during the race
    Tokyo 2020 provided heat countermeasures tailored to specific sports after close consultation with IFs. (examples below)
    Heat countermeasures tailored to specific sports at Test Event Wave1
    1-3. Heat countermeasures
    a) for Athletes
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    In order to finalise the heat countermeasures plan for athletes, Tokyo 2020 has
    reached out to each Olympic and Paralympic sports IF with a questionnaire in
    September.
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    Questionnaire for IFs
    Some feedback from IFs
    • Appropriate climate control of call room
    • Air conditioning at athleteʼs lounge, changing rooms and warm-up
    areas
    • Additional ice, water. Higher volume than normal
    • Increase the number of ice baths
    • Additional quantities of sports drinks as well as water
    • Additional ice and towels following experience from the test event
    • Free-standing parasols
    • Additional shaded area etc
    1-3. Heat countermeasures
    a) for Athletes
    1. Response regarding facilities and equipment
    • Many requests from IFs were about athletesʼ lounge with air conditioner, water
    and ice, ice bath, mist fan, portable air conditioner and shades.
    • Most of their requests have already been implemented at Test Events. Moving
    forward, details such as quantity needs to be discussed. There are also some
    additional requests other than the above and we continue to work with relevant
    IFs.
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    Follow-up action based on feedback from IFs
    1-3. Heat countermeasures
    a) for Athletes
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    2. Heat countermeasures by IFs
    • IFs are planning various countermeasures such as introducing specific regulations
    for extreme conditions including heat as well as developing and distributing
    guidelines for NFs.
    e.g. In Triathlon, the distance for run and swim may be shortened depending on the
    WBGT and water temperature. Similar rules are put in place or being discussed
    for other sports.
    • Tokyo 2020 will support IFs in various ways such as assisting in their consideration
    of regulation adjustments by sharing basic historical weather data and informing
    relevant stakeholders of their initiatives.
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    1-3. Heat countermeasures
    a) for Athletes: Follow-up action based on feedback from IFs
    3. Heat countermeasures for the Paralympic athletes
    Main responses from IFs:
    • Many requests were about the installment of air conditioner for athleteʼs lounge and
    changing room, provision of water and ice, shades as with the case of the Olympics.
    • It is also requested that the temperature in indoor sports venue be controlled for athlete
    with difficulty in controlling body temperature.
    • Heat countermeasures for the Paralympic athletes will be based on the ones for the
    Olympics. With regards to Paralympic sports specific heat countermeasures, Tokyo 2020
    will discuss and consider in close cooperation with the IFs.
    • This will be also discussed at the IPC Project Review scheduled in December.
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    1-3. Heat countermeasures
    a) for Athletes: Follow-up action based on feedback from IFs
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    IF Seminar in Lausanne(Oct. 14-15, 2019)
    • With the support from the IOC, Tokyo 2020 hosted a seminar for IFs in order to
    share the latest status of preparation for service levels of Tokyo 2020 Games.
    • At the seminar, Tokyo 2020 presented heat countermeasures plan for athletes and
    received positive feedback from outdoor sports IFs with concerns about the heat in
    Tokyo. We continue to closely communicate and share the information with IFs.
    Participant:
    • 60 members (Summer IFs, ASOIF, Olympic Boxing Task Force, ITA, OBS, Olympic
    Channel .etc)
    1-3. Heat countermeasures
    a) for Athletes: Information sharing and discussion with IFs
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    Games Time
    June, 2019 Oct. Feb~May, 2020 (a few days in advance of games day)
    • Heat countermeasures taken by
    national government and TMG
    • Heat countermeasures by Tokyo2020
    • Introduction of heat mitigation goods
    • Partner engagement project
    • Spectator Guide
    • Games-Time Web
    • General information on weather in Japan
    • Precautions regarding heat and rain
    • Explanation and prevention of heatstroke
    • Medical information
    • July, 2019~ Test Event webpage by sport
    • Precautions regarding climate
    and weather
    • Measures provided at venues
    • Precautions
    during Games-Time
    PreGamesTimeWeb GamesTimeWeb
    Mobile App.
    Spectators Guide
    PR Event World Press Briefing Newspaper Email as a
    reminder just
    prior to
    Games
    GTW
    ・Warnings of heat, wind, earthquake, heavy rains
    ・Weather forecast around venues (weather, temperature, WBGT)
    ・Precautions regarding heat and rain.
    ・Things to prepare in advance
    ・Recommended outfits for watching games
    ・”Cooling spots” at Last Mile and nearby areas
    ・Venue-specific precautions
    ・Resources available at venues (heat mitigation goods etc.)
    1-3. Progress on Heat Countermeasures
    b) For Spectators ①Information Provision
    Milestone
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    VENUE NAME
    XXXXXXXXXXXXXX
    Accese
    XXXXXXXXXXX
    Venue page
    Detailed weather forecasts around venues
    Latest forecast on the day and next day
    Latest weekly forecast
    Show color coded WBGT measured around venues
    Page for Spectators
    Measures to prevent heatstroke and pre-games
    information
    Provide information on risk of heatstroke and
    countermeasures
    Push notifications (Mobile App)
    Precautions against heat
    Encourage spectators to prepare drinks and clothes
    in advance by sending notifications regularly a few
    times a day
    Ex) Temperature is predicted to exceed 35℃ in the
    daytime. Prevent heatstroke by drinking water
    periodically.
    Warnings
    Earthquake Early Warnings, Tsunami Warnings,
    Volcanic Alert, Emergency Weather Warning,
    Heatstroke Info etc.
    ※Necessary to consider the standards to issue
    warnings
    In addition to website, utilise mobile app and push notifications to deliver location‐specific
    information and precautions to be taken.
    Introduce features of weather in Japan, different types of
    heat countermeasures, and provide WBGT information in
    cooperation with JNTO and Ministry of the Environment.
    Pre-Games Time During Games Time (May, 2020〜)
    Banner Area
    JNTO Website
    • Introduction of weather and
    climate in Japan
    • Average temperature and
    rainfall by region
    • Precautions for earthquake,
    volcano and heatstroke
    Ministry of the Environment
    Website regarding preventive
    measures against heatstroke
    • Causes of heat stroke
    • Countermeasures
    • WBGT information
    1-3. Progress on Heat Countermeasures
    b) For Spectators ①Information Provision
    Image of Official Website
    32° Heat 29.6
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    Venue page
    ・Detailed weather forecasts
    around venues
    ・WBGT index around venues
    Push notifications
    ・Precautions against heat
    ・Alerts
    Page for spectators
    ・Measures to prevent
    heatstroke and pre-games
    information
    Other
    ・Planning to indicate cooling
    spot on the map of Last Mile
    and venues
    close show
    Temperature is expected to
    exceed 35℃ in the daytime.
    Keep hydrated to prevent
    heatstroke.
    Push notifications as
    precautions
    Link etc. to related
    information
    1-3. Progress on Heat Countermeasures
    b) For Spectators ①Information Provision
    Image of Games-Time Mobile App
    Heat 29.6
    32° Heat 29.6
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    Introduction of venues
    ・Map showing cooling spot
    ・Introduction of licensed
    heat mitigation goods
    Access information
    ・Map showing cooling spot
    Checklist
    ・Measures to prevent
    heatstroke and sunburn
    1-3. Progress on Heat Countermeasures
    b) For Spectators ①Information Provision
    Image of Spectator Guidebook (May)
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    Monthly Newsletter for
    ATR
    Supplying newsletters to
    Authorized Ticket Reseller (ATR)
    since May, 2019 regarding games
    related information for overseas
    spectators.
    Announce precautions by
    regularly sending information on
    heat and resending a letter
    featuring heat countermeasures
    just before the Games-Time.
    ・Introduction of climate in Japan
    ・Recommended outfits
    ・Measures for heatstroke and
    sunburn
    ・Tokyo2020 Cooling project
    ・Introduction of medical institutions
    providing multi-language services
    1-3. Progress on Heat Countermeasures
    b) For Spectators ①Information Provision
    Monthly Letter to Overseas Spectators
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    Maximum
    Competition Duration
    Roof
    Unreserved Reserved
    Competition
    Start Time
    Distance of
    Last Mile
    Numbers in front of
    PSA during peak hours
    Rotation between
    Sessions
    FOH High Degree
    of Congestion
    Shading
    Heat during the games
    Heat until spectators get to a venue
    Capacity
    Indoor/Outdoor
    Number exposed to heat
    Shelter from heat
    ※ Consideration for spectators at
    outdoor venues is particularly
    important.
    It is difficult to install additional
    roofs due to security and budget
    restrictions, but we will prioritize
    efficient measures for spectators at
    those venues, such as making use of
    results from test events, and
    providing multilingual messaging on
    methods to prevent heatstroke (wear
    hats, intake liquid).
    Refinement of Heat Countermeasures based on Venue Features, by Analyzing Heat Risk Factors
    1-3. Progress on Heat Countermeasures
    b) For Spectators ②Measures at Venues
    Policy on Measures by Venues
    25
    Increase the Installation of Water Fountains
    Increase the Installation of Shade Tents
    1-3. Progress on Heat Countermeasures
    b) For Spectators ②Measures at Venues
    Additional Measures
    Planning to increase the installation of water fountains at FOH based on the standard below.
    ・Outdoor venues with high degree of congestion (Shiokaze Park etc.) …One tap/500 persons
    ・Outdoor venues without congestion …One tap/1000-3000 persons
    • Assessment of heat risk based on venue features.
    • Validation of results of review at Test Events.
    → Based on these factors, consideration required mainly for outdoor venues to increase
    shading. Planning to increase the installation of shade tents.
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    1-3. Progress on Heat Countermeasures
    b) For Spectators ②Measures at Venues
    (Image of Venue)
    Competition
    Area
    (Field of
    Play)
    PSA
    Competition
    Area (Field of
    Play)
    Pre PSA Tent 524㎡
    Large Cooling Fan 8
    Rest Area 170㎡
    Concessions
    16 shops
    Water taps 8
    Medical Room
    50㎡
    Medical
    Room 50㎡
    Cool off Space 852㎡
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    Tokyo 2020 has worked with partners to ensure an environment where
    spectators will be able to stay hydrated when they attend the Games.
    Also, as a special measure, spectators will be permitted to bring their own
    non-alcoholic drinks under 750ml into venues.
    A varied range of beverages will be available for purchase at multiple
    concessions in venues as well as drinking water fountains.
    1-3. Progress on Heat Countermeasures
    b) for Spectators ②Measures at Venues
    Even Better Access to Drinks
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    • Paper fans and neck cooling towels etc. were distributed at Test Events.
    → Goods for provision to be decided based on results of review and feedback.
    • Visors, hats and ascot ties, etc. are also on sale as official licensed products
    Consider by venue products to be sold at licensed goods shops inside venues
    1-3. Progress on Heat Countermeasures
    b) For Spectators ②Measures at Venues
    Provision of Heat Mitigation Goods
    Event Alert System
    Sport Presentation
    I. Coordinating to provide data measured at all 43 venues
    by Ministry of the Environment in FY2020 on official website
    and Games-Time mobile app.
    II. Tokyo 2020 is planning to measure WBGT at
    competition venues and Athletesʼ Village and
    provide data via event alert system and sport
    presentation.
    Provide information on weather and WBGT through various channels in order to
    motivate individuals to take personal measures against heatstroke
    1-3. Progress on Heat Countermeasures
    b) For Spectators ②Measures at Venues
    Measurement of WBGT
    VENUE NAME
    XXXXXXXXXXXX
    XX
    Accese
    XXXXXXXXXXX
    Banner Area
    32° Heat
    29.6
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    The ʻMistʼ Team Sport Presentation
    Alerts
    Proactive Announcement
    by Workforce Event Alert System
    By providing information inside venues through various channels, create an
    atmosphere where the venue works together as a whole to prevent heatstroke.
    《Theme》
    ‟Letʼs watch out for heatstroke together at venues“
    1-3. Progress on Heat Countermeasures
    b) For Spectators ②Measures at Venues
    Information Provision at Venues
    31
    Workforce
    First Responder
    Spectator
    Proactive Announcement
    First Detection Response・Contact Medical Room Emergency transfer
    Local Medical Institution
    Contact Venue Communication Centre
    and call First Responder
    Contact Venue
    Communication Centre
    Get instructions from Venue
    Medical Officer
    First‐Aid Treatment
    Cooling Body・rehydration
    Inform nearby Workforce
    Hand over to Workforce
    Hand over to First Responder
    Transfer to
    Medical Room
    Diagnosis by doctor
    Make a decision to
    transfer to a hospital
    Transfer to closest hospital or medical
    emergency centre etc.
    Deploy one ambulance for spectators at each venue
    Proactive Announcement
    by First Responders
    Classification of heat-related
    illness symptoms published in
    2015 by Japanese Association
    for Acute Medicine
    Level Ⅱ︓Transfer to
    Medical Institutions
    Level Ⅲ︓Hospital
    Admission
    Intensive Care
    ・Rest in a cool environment
    ・Prompt replacement of electrolyte
    by intaking oral rehydration solution
    ・Back to spectating upon recovery
    ・Prompt patient transfer
    according to severity level
    Get away from heat
    Response
    at the site
    Prevent heatstroke from becoming increasingly severe by looking out for each other for
    early detection of symptoms and responding, make it possible to get back to spectating.
    LevelⅠ︓First-Aid and
    Observation
    Reduce burden on local medical institutions
    by reducing number of emergency
    patient transfers
    Response at the site・
    Back to spectating
    1-3. Progress on Heat Countermeasures
    b) For Spectators ②Measures at Venues
    First-Aid Treatment Operation (Image)
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    ●Distribution of heat mitigation goods
    ・Coordinating to distribute heat mitigation goods below taking results of review at Test Events into
    account.
    ・Coordinating with related FAs regarding additional bottled water for workforce allocated at outdoor
    venues.
    〈Drinking Water〉
    ・Bottled Water Outdoor venues 4 bottles per staff, Indoor venues 2 bottles per staff
    ・Water Fountains Water fountains to be installed at all venues
    〈Heat Mitigation Goods〉
    ・Ice cream…for cooling down the body and for refreshment
    ・Salt tablet…for intaking salt
    ・Wipe tissues…for cooling down the body
    ・Instant cooling pack…for cooling down the body in emergency
    1-3. Progress on Heat Countermeasures
    c) For Workforce
    33
     Paid Staff: Raising awareness and providing more knowledge on heat
    countermeasures.
    • Tokyo 2020 will train paid staff by providing more information on heat countermeasures
    to “prevent” and “respond” to the situations.
    ⇒ Trainings to be conducted.
     Games Volunteers: Further enhance the knowledge of heat countermeasures.
    • Utilisation of trainings to provide information on the way to prevent heatstroke and
    the importance of self-care.
     Reexamination of the rotation/break shifts policy.
    • Thoroughly implement the rotation/break policy as there was some feedback from
    volunteers who could not take enough rest during test events.
    【E.g. How to take breaks】
    ・Alternate shifts each 30 minutes between indoor and outdoor shifts
    ・Take 15 minute break every one hour etc.
    1-3. Progress on Heat Countermeasures
    c) For Workforce
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    Issues revealed in Test Event (Wave 1) Status
    Press ・Heat countermeasures at mixed zone ・Planning to install canopy tents
    at mixed zone of outdoor venues.
    RHB ・Heat countermeasures at camera
    position at outdoor venues
    ・Planning to install shades for
    camera positions at some venues
    <Planning status of provision of drinking water>
    ・Coordinating with related FAs regarding additional bottled water for press and RHB working at outdoor
    venues.
    (1~3 bottles per person in addition to amounts already planned)
    <Other measures being considered>
    ・Install shading for monitors at outdoor press seats
    ・Distribute covers for PCs
    ・Shading for IBC parking area (installation of parasols near P5 area・PSA)
    ・Provision of salt candies
    ・Distribute cooling sheets (for RHB)
    1-3. Progress on Heat Countermeasures
    d) For Media
    35
    1-3. Progress on Heat Countermeasures
    e) TOKYO 2020 COOLING Project
    Efforts of Summer 2019
    The 13 supporters of this project upon its launch in June 2019 have grown to 24, and each of the partners
    conducted many efforts this summer leveraging areas where they have strength.
    Although each of the efforts were effective, some issues that need to be resolved became evident.
    Preparation for Games-time and for even more effective heat countermeasures will proceed.
    < Installation of Shade Tents > < Mist Spray > <ʼUchimizuʼ Event>
    34
    35
    19
    2. Sport Competition Management
    Competition management in responding to weather condition
    (Test event cases on June – October 2019)
    Tokyo 2020 flexibly responded to weather condition in cooperation with IFs.
    Sport Before After Caused by
    Modern Pentathlon
    <Fencing Bonus Round> Jun 29th to 30th / FOP: Outdoor venue Jun 29th to 30th /FOP: Indoor venue Thunderstorm
    Surfing July 21st / Final July 20th /Final Size of waves, rain and
    fog
    Rowing August 9th to 10th / start time︓09h30 August 9th to 10th / start time︓09h00 Strong wind
    Marathon Swimming August 11th / Women︓07h00, Men︓10h00 August 11th / Men︓07h00, Women︓07h02 Water temperature
    Golf August 14th / Competition August 14th / Competition interrupted 3 times by lightning. Some events
    postponed to the following day (August 15th). Lightning
    Triathlon
    (O) August 15th / Swim 1.5km→Bike
    40km→Run10km
    (P) August 17th / Swim 0.75km→Bike
    20km→Run5km
    (O) August 15th / Swim 1.5km→Bike 40km→Run 5km
    (P) August 17th / Run 2.5km→Bike 20km→Run 5km*Duathlon WBGT, water quality
    Sailing August 22th / Competition August 22th / Some races could not be completed, and the competition
    finished with cumulative results. Wind
    Karate September 9th / start time︓10h00 September 9th / start time︓13h00
    1 out of 3 competitions were cancelled.
    Public transportation
    issue from typhoon
    BMX Racing October 12th to 13th / Competition October 11th / Competition Typhoon
    Canoe Slalom October 25th / Heats : Men’s Canoe and
    Women’s Kayak
    October 25th / Heats 2nd Run of Men’s Canoe and Women’s Kayak
    were cancelled.
    (Semi Finalists were determined based on Heats 1st Run result
    according to the rule of competition )
    Heavy rain, strong wind
    36
    Changes occurred during the Test Events
    (1)Marathon Swimming︓11 August
    <Before the change> Women︓7:00 Men︓10:00
    <After the change> Men︓7:00 Women︓7:02
    (2)Women’s Triathlon︓15 August
    <Before the change> Swim(1.5km)→Bike(40km)→Run(10km)
    <After the change> Swim(1.5km)→Bike(40km)→Run(5km)
    (3)ParaTriathlon︓17 August
    <Before the change> Swim(0.75km)→Bike(20km)→Run(5km)︓Triathlon
    <After the change> Run(2.5km)→Bike(20km)→Run(5km)︓Duathlon
    2. Sport Competition Management: Sports at Odaiba Marine Park
    37
    36
    37
    20
    Water Quality and Temperature Survey Details in 2019
    Survey periods:
    Olympic Games period plus test event period: July 24 to August 18
    Paralympic Games period: August 25 to September 6 (39 days in total)
    Measurements:
    • Quantity of E-coli
    • Quantity of Faecal coliforms
    • Quantity of Enterococci
    • pH levels
    • Level of COD (Chemical Oxygen Demand)
    • Water transparency
    • Presence of oil film
    • Water temperature
    Sampling locations:
    6 locations pointed in the map
    Note:
    The underwater screens deployed from August 7 to 18
    Six measuring
    points
    Underwater
    screens
    38
    2. Sport Competition Management: Sports at Odaiba Marine Park
    Water Quality
    Summary of survey results
    Period during which screens were not installed (July 24 - August 6, August 25 - September 6)
     Faecal coliforms - E.coli
    - Levels were within agreed limits when there was no rainfall
    - Increases were recorded after rainfall, but levels tended to return to normal when there was no rain for more than three days
    subsequently
     Enterococci
    - Exceeded agreed levels on one day
     COD (Chemical Oxygen Demand)- water transparency
    - Agreed limits were exceeded during the test event period, but all levels were within agreed limits during the period corresponding to
    the Paralympic Games
    Period during which screens were installed (August 7 - August 18)
     Faecal coliforms - E.coli
    - Due to the effects of rainfall on August 14 and 15, agreed levels were exceeded during August 15-18 outside the screened area; within
    the screened areas, levels were within agreed limits on all days with the exception of August 17
     Enterococci
    - Within agreed limits at all survey points during the entire survey period
    - Within agreed levels at all survey points during the survey period
    Water Temperature
    ※ See attachment for water temperature and water quality data this summer
    39
    2. Sport Competition Management: Sports at Odaiba Marine Park
    38
    39
    21
    (1) Installation of triple screens
    The single underwater screens were shown to be effective in inhibiting levels of E. coli during this summer's
    test event; Tokyo 2020 plans to further improve the water quality through the installation of triple screens
    during the Tokyo 2020 Games.
    (2) Operation of underwater screens to prevent water temperature rise
    We will consider operating methods that can help suppress water temperatures, such as allowing the
    underwater screens to float, and opening them when weather is good.
    (3) Further measures to improve water quality and reduce water temperature
    In collaboration with the Tokyo Metropolitan Government, Tokyo 2020 will continue their analysis of the
    causes of poor water quality and odours, and they will review methods for ensuring appropriate water
    quality and temperature with experts, outsourcing agreed solutions to specialist operators.
    (4) Consideration on bringing forward the start time of competitions
    Triathlon events (men, women and mixed relay) are being considered to starting earlier by one hour.
    IOC, IF and Tokyo 2020 are discussing for the approval by the IOC Executive Board meeting in December.
    Measures to Secure Water Quality and Temperature in 2020
    40
    2. Sport Competition Management: Sports at Odaiba Marine Park
    Equestrian:
    Starting time of the eventing (cross-country) event is in coordination to be brought
    forward from 8:30 to start between 7:30 and 8:00.
    Discussing with IF and IOC to make final decision at the IOC Executive Board Meeting in
    December.
    Marathon and race walk:
    Venue to change and move to Sapporo
    41
    2. Sport Competition Management: Other Sports
    40
    41
    22
    42
    Typhoon route map
    Source︓Japan Meteorological Agency
    ・The Japan Meteorological Agency
    warned that it might be a record
    storm, including the Tokyo
    metropolitan area, at 11:00 on 9/8
    (Sun)
    ・Typhoon 15 landed near Chiba
    before 5:00 on 9/9 (Mon). The
    power at the time of landing in
    Kanto was the strongest class ever
    (Central pressure 960hPa,
    Maximum wind speed 40m/s)
    ・ Damage such as power outages
    (930,000 as of 9th) occurred
    mainly in Chiba
    (1 dead, 145 seriously ill, 7 damaged
    houses, 9 partially damaged, 3584 partially
    damaged)
    3. Response to Typhoon: Typhoon Faxai (No.15) Outline
    21:00 on the 6th
    9:00 on the 7 990hPa 30m/s th
    Strong 970hPa 35m/s
    21:00 on the 7th
    Strong 960hPa 40m/s
    9:00 on the 8th
    Strong 960hPa 40m/s
    21:00 on the 8th
    Very strong 970hPa 45m/s
    3:00 on the 9th
    Strong 960hPa 40m/s
    9:00 on the 9th
    Strong 965hPa 40m/s
    21:00 on the 9th
    980hPa 30m/s
    9:00 on the 9th
    990hPa 25m/s
    15:00 on the 10th 992hPa
    Extratropical cyclone
    Before 5:00 on the 9th
    Landed near Chiba
    Before 3:00 on the 9th
    Passed Miura Peninsula
    Hachijo‐jima
    Chichi‐jima
    43
    【Status of transportation】
    9/8(Sun)
    Planned suspension
    ・JR Tokaido Line, Ome Line, Keiyo Line After 21:00
    ・Each private railway line After 22:00〜23:00
    ・Tokaido Shinkansen After 16:00 sequentially
    9/9(Mon)
    Planned suspension
    ・ JR conventional line Until 8:00
    ・ Each private railway line From 8:00 to 10:00
    ・ Tokaido Shinkansen Some trains suspended or delayed from the first train
    ・ Airlines Canceled mainly in the morning
    【Influence on the road】
    ・Metropolitan Expressway Closed in many sections
    JR Shinjuku Station (Source: Asahi Shimbun Digital)
    3. Response to Typhoon
    Typhoon Faxai (No.15) Impact on Transportations・Roads
    42
    43
    23
    44
     It was a record heavy rain in a wide range
    mainly in Shizuoka Prefecture, Kanto
    Koshin region, and Tohoku region.
     Total rainfall from the 10th reached 1000
    mm in Hakone, Kanagawa, and exceeded
    500 mm at 17 locations in the Kanto
    Koshin region and Shizuoka Prefecture.
     Special warnings were announced due to
    this record heavy rain.
    〇 Shizuoka, Kanagawa, Tokyo, Saitama,
    Gunma, Yamanashi and Nagano prefectures
    at 15:30 on the 12th
    〇 Ibaraki, Tochigi, Niigata, Fukushima and
    Miyagi prefectures at 19:50 on the 12th
    〇 Iwate Prefecture at 00:40 on the 13th
    Typhoon route map
    Typhoon route map
    9:00 on the 13th Large
    975hPa 30m /s
    21:00 on the 12th Large strong
    960hPa 40m/s
    18:00 on the 12th Large strong
    955hPa 40m/s
    9:00 on the 12th Large very
    21:00 on the 11 strong 955hPa 40m /s th Large very
    strong 935hPa 45m/s
    9:00 on the 11th Large very strong
    935hPa 50m/s
    21:00 on the 10th Large very
    strong 920hPa 50m/s
    9:00 on the 10th Large furious
    955hPa 40m/s
    21:00 on the 9th Large furious
    915hPa 55m/s 9:00 on the 9th Large furious
    915hPa 55m/s
    3. Response to Typhoon: Typhoon Hagibis (No.19) Outline
    Source︓Japan Meteorological Agency
    45
    Rowing response
    Based on the strong wind forecast, the competition start time was moved forward on Aug. 9th and 10th.
    Karate response
    Due to the typhoon, a competition activity scheduled on Sep. 9th was delayed for a few hours.
    3. Response to Typhoon: Response at Test Events
    BMX Racing response
    October 9th(Wed)
    5:00
    Raise tent banner to prepare for strong wind
    11:30
    Urgent meeting with UCI regarding test event (12th and 13th) implementation policy
    → The competition scheduled for October 12th and 13th was moved forward to the 11th due to the typhoon.
    【Reference】
    Response of RWC2019
    Cancellation of two matches scheduled on Oct. 12th was announced at the press conference on the 10th due to the powerful Typhoon 19.
    ※Following the tournament regulations, matches were not postponed (each team was awarded two competition points).
    ※The Ireland‐Samoa game in Fukuoka was held as scheduled on Oct. 12th.
    44
    45
    24
    46
    【 Questions asked to the venues 】
    Will you hold competitions scheduled after 19:00 on Sunday?
    Competition
    scheduled
    after 19:00
    at venues
    conducting
    simulation
    26
    Indoor 12
    As
    scheduled 3
    Postponement etc. 11
    【Olympic】
    As
    scheduled 6
    Postponement etc. 6
    Outdoor 14
    * Numbers = of
    competitions
    【Result】
    There was variation
    among the decisions
    made at each venue.
    3. Response to Typhoon
    Typhoon Faxai (No.15) Simulation at each venue
    47
    【Policy on Countermeasure】
    Considering the following response to take if an incident that affects a wide area occurs,
    such as this typhoon.
    ・The basic response policy will be established at the Main Operation Centre, and this will
    be communicated to all venues, and will be provided to ticket holders and the media to
    prevent information confusion.
    ・Each venue determines the competition management policy based on its basic policy
    and reports to the Main Operation Centre. Consult with the Main Operation Centre if
    the venue wants to make a decision that is different from the basic policy.
    【Recognition of issues based on results】
    In principle, competition management decisions should be made at each venue, but if there
    are variations in response to the same typhoon among different venues, there is a risk of
    confusion in spectatorsʼ understanding and transportation of related parties.
    3. Response to Typhoon
    Response in future based on Test Event results
    46
    47
    25
    48
     Would like to discuss with IOC / IF to determine timing of decisions, etc, and how to
    communicate information in a timely manner to spectators, athletes, competition
    officials and workforce, etc.
    ( ︓ Around ● days before the typhoon landing )
    ① Announcement of date to make a decision ︓By ● days before the scheduled competition date
    ② Decision and publication of changes︓By ● days before the scheduled competition date
    Decision and
    publication
    Anticipation
    Change time
    Pre-announcement Postponement
    of decision date
    Scheduled
    competition date
    ● days before ● days before The day before
    Competition date change Competition date change
    Schedule (Image)
    3. Response to Typhoon
    Response in future based on Test Event results
    Time when typhoon course is
    roughly determined
    48
    The weather conditions
    7/24 7/25 7/26 7/27 7/28 7/29 7/30 7/31 8/1 8/2 8/3 8/4 8/5 8/6 8/7 8/8 8/9 8/10 8/11 8/12 8/13 8/14 8/15 8/16 8/17 8/18
    6.0 0.0 0.5 4.0 15.0 0.0 -- -- -- -- -- -- -- -- -- -- -- -- 0.0 0.5 0.0 8.5 20.0 0.0 -- --
    31.6 32.4 33.1 31.4 32.3 33.7 33.6 34.6 35.0 35.1 33.7 34.3 34.9 35.0 35.6 35.5 35.6 34.4 35.6 33.2 35.5 32.4 32.6 31.6 35.5 35.2
    6:00-
    18:00
    cloudy
    occasionally
    rainy later sunny
    sunny
    occasionally
    rainy
    sunny
    sunny
    occasionally
    cloudy
    sunny sometimes
    cloudy
    occasionally rainy
    sunny
    occasionally
    cloudy
    sunny later
    occasionally
    slightly cloudy
    sunny later
    slightly cloudy sunny sunny sunny sunny sunny sunny later slightly cloudy slightly cloudy sometimes sunny sunny sunny later occasionally slightly cloudy sunny sometimes cloudy sunny occasionally slightly cloudy slightly cloudy occasionally rainy cloudy sometimes sunny occasionally rainy with thunder cloudy sometimes sunny occasionally rainy cloudy occasionally sunny later occasionally rainy cloudy sometimes rainy sunny sunny later occasionally cloudy
    18:00-
    (next)6:00
    cloudy
    sometimes sunny sunny cloudy sometimes rainy cloudy later rainy sunny sometimes slightly cloudy cloudy sometimes sunny sunny occasionally slightly cloudy sunny sometimes slightly cloudy sunny sunny sunny sunny sunny later occasionally cloudy slightly cloudy sometimes sunny sunny occasionally slightly cloudy sunny occasionally cloudy cloudy occasionally sunny sunny cloudy occasionally sunny cloudy occasionally sunny sunny later cloudy sunny sometimes cloudy cloudy sometimes rainy sunny sunny cloudy sometimes sunny
    ※ 0.0 indicates the precipitation was less than 0.5 mm.
    7/24 7/25 7/26 7/27 7/28 7/29 7/30 7/31 8/1 8/2 8/3 8/4 8/5 8/6 8/7 8/8 8/9 8/10 8/11 (5 a.m.) 8/12 8/13 8/14 8/15 (5 a.m.) 8/16 (5 a.m.) 8/17 (4 a.m.) 8/18 (5 a.m.) max min
    Point A 51 660 490 17 3,200 4,700 170 16 6 12 50 8 15 30 8 6 12 7 3 0 28 0 82 810 20 4,700 0
    Point B 51 390 440 14 3,800 6,600 120 19 5 5 20 10 34 17 11 4 5 9 2 1 23 0 73 890 18 6,600 0
    Point C 48 220 320 13 2,700 4,600 130 24 9 6 0 30 3 17 7 8 14 4 1 2 29 0 67 830 17 4,600 0
    Point D 27 2 27 2
    Point E 28 450 410 12 2,100 5,900 240 34 25 5 41 5 36 16 10 5 13 7 4 0 2 0 86 1,000 4 5,900 0
    Point F
    outside the screen 46 110 330 10 490 3,400 340 31 51 10 8 85 40 200 19 7 147592 2,100 610 1,400 470 3,400 2
    Point A 19 180 410 9 3,500 5,500 70 14 27 4 0 13 23 32 10483 210 5,500 0
    Point B 31 220 400 14 3,900 4,100 130 18 6 6 20 5 29 29 10256 200 4,100 0
    Point C 52 280 290 16 4,800 5,600 70 20 21 2 30 19 7 70 40 3 13 6 1 1 0 5,600 0
    Point D 21 21 21
    Point E 28 160 300 15 3,800 4,500 60 59 50 10 220 9 33 50 15 6 2 10 2 1 0 4,500 0
    Point F
    outside the screen 41 200 200 22 3,400 5,800 160 56 51 29 450 130 35 90 80 46 12 3 4 6 5 5,800 3
    7/24 7/25 7/26 7/27 7/28 7/29 7/30 7/31 8/1 8/2 8/3 8/4 8/5 8/6 8/7 8/8 8/9 8/10 8/11 (5 a.m.) 8/12 8/13 8/14 8/15 (5 a.m.) 8/16 (5 a.m.) 8/17 (4 a.m.) 8/18 (5 a.m.) max min
    Point A 2 160 5 33 33 11 0 0 1 0 1 3 0 7 2 1 1 0 8 0 5 80 19 29 8 160 0
    Point B 9 110 4 43 33 50 30 0 2 0 1 3 0 0 6 0 1 2 8 1 5 2 16 18 2 110 0
    Point C 17 110 3 14 31 40 20 0 0 0 3 1 0 3 1 1 1 3 3 3 0 8 17 36 4 110 0
    Point D 2 9 92
    Point E 15 13 7 10 40 20 1 0 2 2 0 1 6 9 4 2 1 3 2 4 0 4 11 17 2 40 0
    Point F
    outside the screen 9 11 9 80 7 10 0 0 1 0 1 13 1 1 3 1 0 0 13 7 2 34 12 8 19 80 0
    Point A 17 6 2 2 33 13 4 2 1 0 2 0 0 0 1 1 0 2 7 1 3 33 0
    Point B 2 7 3 2 21 6 2 0 0 0 0 5 0 0 1 0 0 1 0 2 2 21 0
    Point C 3 5 2 4 23 9 2 1 1 0 1 4 0 1 0 0 0 1 2 4 4 23 0
    Point D 0 0 0
    Point E 0 1 13 4 26 0 2 1 1 0 4 1 3 3 0 0 0 0 0 7 5 26 0
    Point F
    outside the screen 2 1 5 14 23 25 0 0 1 6 11 21 4 1 8 23 7 25 4 24 1 25 0
    7/24 7/25 7/26 7/27 7/28 7/29 7/30 7/31 8/1 8/2 8/3 8/4 8/5 8/6 8/7 8/8 8/9 8/10 8/11 (5 a.m.) 8/12 8/13 8/14 8/15 (5 a.m.) 8/16 (5 a.m.) 8/17 (4 a.m.) 8/18 (5 a.m.) max min
    Point A 7.8 8.0 8.0 7.8 7.7 7.9 8.3 8.6 8.7 8.7 8.5 8.6 8.7 8.5 8.6 8.8 8.7 8.8 8.8 8.9 8.8 8.7 8.5 8.0 8.1 8.9 7.7
    Point B 7.8 8.0 8.0 7.8 7.7 7.9 8.3 8.6 8.7 8.8 8.5 8.7 8.7 8.5 8.6 8.8 8.7 8.8 8.9 8.9 8.8 8.8 8.5 8.0 8.2 8.9 7.7
    Point C 7.8 8.0 8.1 7.8 7.7 7.8 8.2 8.5 8.7 8.7 8.6 8.7 8.7 8.5 8.6 8.8 8.7 8.8 8.7 8.9 8.9 8.7 8.5 8.0 8.2 8.9 7.7
    Point D 8.6 8.9 8.9 8.6
    Point E 7.8 7.9 8.1 7.8 7.7 7.8 8.2 8.4 8.7 8.7 8.6 8.6 8.5 8.4 8.6 8.7 8.7 8.8 8.9 8.9 8.9 8.8 8.5 8.0 8.2 8.9 7.7
    Point F
    outside the screen 7.8 8.1 8.0 7.9 7.7 7.8 8.2 8.5 8.6 8.7 8.6 8.3 8.4 8.4 8.1 8.3 8.2 8.4 8.4 8.5 8.4 8.4 8.3 7.8 7.8 8.7 7.7
    Point A 7.9 8.0 8.1 7.9 7.7 7.9 8.4 8.7 8.8 8.8 8.7 8.7 8.7 8.6 8.6 8.8 8.7 8.9 9.0 8.9 8.8 9.0 7.7
    Point B 7.9 8.1 8.1 7.9 7.7 7.9 8.4 8.7 8.9 8.8 8.6 8.8 8.7 8.6 8.8 8.8 8.8 8.9 9.0 8.9 8.9 9.0 7.7
    Point C 8.0 8.3 8.1 7.9 7.7 7.9 8.4 8.8 8.9 9.0 8.6 8.8 8.8 8.6 8.7 8.8 8.8 8.9 9.0 8.9 9.0 9.0 7.7
    Point D 8.8 8.8 8.8
    Point E 8.0 8.4 8.1 7.9 7.7 7.9 8.4 8.6 8.5 9.0 8.6 8.8 8.7 8.5 8.7 8.8 8.8 8.9 8.9 8.9 9.0 9.0 7.7
    Point F
    outside the screen 7.9 8.4 8.0 7.9 7.7 7.9 8.3 8.5 8.6 8.7 8.6 8.6 8.6 8.5 8.4 8.4 8.3 8.2 8.6 8.5 8.5 8.7 7.7
    The result of water quality surveys in 2019 (The Olympic Games & Test Events period 7/24~8/18): ITU Competition Rules
    rain fall
    amount/day(mm)※
    the highest
    temperature
    Measurements taken
    at the Japan
    Meteorological
    Agency's "Tokyo"
    station
    reference
    weather
    Screen Installation Period
    Enterococci
    b
    e
    l
    o
    w
    1
    0
    0

    1
    0
    0


    7
    a.m.
    9
    a.m.
    pH
    E. coli
    b
    e
    l
    o
    w
    2
    5
    0

    1
    0
    0


    7
    a.m.
    9
    a.m.
    6

    9
    7
    a.m.
    9
    a.m.
    The weather conditions
    7/24 7/25 7/26 7/27 7/28 7/29 7/30 7/31 8/1 8/2 8/3 8/4 8/5 8/6 8/7 8/8 8/9 8/10 8/11 8/12 8/13 8/14 8/15 8/16 8/17 8/18
    6.0 0.0 0.5 4.0 15.0 0.0 -- -- -- -- -- -- -- -- -- -- -- -- 0.0 0.5 0.0 8.5 20.0 0.0 -- --
    31.6 32.4 33.1 31.4 32.3 33.7 33.6 34.6 35.0 35.1 33.7 34.3 34.9 35.0 35.6 35.5 35.6 34.4 35.6 33.2 35.5 32.4 32.6 31.6 35.5 35.2
    6:00-
    18:00
    cloudy
    occasionally
    rainy later sunny
    sunny
    occasionally
    rainy
    sunny
    sunny
    occasionally
    cloudy
    sunny sometimes
    cloudy
    occasionally rainy
    sunny
    occasionally
    cloudy
    sunny later
    occasionally
    slightly cloudy
    sunny later
    slightly cloudy sunny sunny sunny sunny sunny sunny later slightly cloudy slightly cloudy sometimes sunny sunny sunny later occasionally slightly cloudy sunny sometimes cloudy sunny occasionally slightly cloudy slightly cloudy occasionally rainy cloudy sometimes sunny occasionally rainy with thunder cloudy sometimes sunny occasionally rainy cloudy occasionally sunny later occasionally rainy cloudy sometimes rainy sunny sunny later occasionally cloudy
    18:00-
    (next)6:00
    cloudy
    sometimes sunny sunny cloudy sometimes rainy cloudy later rainy sunny sometimes slightly cloudy cloudy sometimes sunny sunny occasionally slightly cloudy sunny sometimes slightly cloudy sunny 快晴 sunny sunny sunny later occasionally cloudy slightly cloudy sometimes sunny sunny occasionally slightly cloudy sunny occasionally cloudy cloudy occasionally sunny sunny cloudy occasionally sunny cloudy occasionally sunny sunny later cloudy sunny sometimes cloudy cloudy sometimes rainy sunny sunny cloudy sometimes sunny
    ※ 0.0 indicates the precipitation was less than 0.5 mm.
    7/24 7/25 7/26 7/27 7/28 7/29 7/30 7/31 8/1 8/2 8/3 8/4 8/5 8/6 8/7 8/8 8/9 8/10 8/11 (5 a.m.) 8/12 8/13 8/14 8/15 (5 a.m.) 8/16 (5 a.m.) 8/17 (4 a.m.) 8/18 (5 a.m.) max min
    Point A 78 730 2,300 58 5,800 7,300 740 39 68 26 80 17 180 70 14 18 42 9 4 0 31 4 290 1,300 90 7,300 0
    Point B 68 690 1,500 59 6,100 11,000 850 38 16 7 80 18 240 19 39 6 8 29 3 1 37 0 120 1,500 100 11,000 0
    Point C 80 900 1,000 56 6,700 9,700 520 31 24 14 30 80 70 37 18 12 45 10 1 3 37 5 270 1,500 80 9,700 1
    Point D 28 2 28 2
    Point E 58 990 870 43 3,800 6,400 610 62 56 15 80 16 120 40 12 11 13 8 4 3 18 3 200 1,500 30 6,400 3
    Point F
    outside the screen 87 360 790 85 860 6,900 640 130 190 17 70 190 210 240 90 28 53 12 17 19 32 4,100 810 3,100 1,700 6,900 12
    Point A 47 430 1,200 50 5,000 8,700 600 57 36 9 30 17 250 40 39 40 15 4 3 7 1 8,700 1
    Point B 48 440 760 54 5,600 7,100 640 37 17 21 90 10 270 60 11356 208 7,100 0
    Point C 72 500 830 47 7,200 9,800 530 63 29 6 50 24 50 90 40 4 36 6 1 1 0 9,800 0
    Point D 23 23 23
    Point E 50 410 520 59 4,700 5,000 410 250 120 18 260 19 250 480 36 9 6 14 0 3 0 5,000 0
    Point F
    outside the screen 46 320 510 48 4,300 10,000 550 390 330 340 780 300 270 190 90 87 53 18 12 41 20 10,000 12
    7/24 7/25 7/26 7/27 7/28 7/29 7/30 7/31 8/1 8/2 8/3 8/4 8/5 8/6 8/7 8/8 8/9 8/10 8/11 (5 a.m.) 8/12 8/13 8/14 8/15 (5 a.m.) 8/16 (5 a.m.) 8/17 (4 a.m.) 8/18 (5 a.m.) max min
    Point A 8.1 10.0 5.5 5.8 5.6 7.1 7.3 7.9 8.4 9.0 7.3 7.5 7.2 6.0 7.8 7.6 8.0 7.6 7.4 8.1 8.0 8.0 7.0 6.0 6.8 10.0 5.5
    Point B 6.3 8.2 6.3 5.9 5.3 6.6 7.1 8.0 8.2 8.8 8.7 8.1 6.1 6.7 7.9 7.7 8.2 7.8 7.8 7.8 7.9 7.5 7.3 6.2 7.1 8.8 5.3
    Point C 6.1 9.2 6.7 5.9 5.2 6.3 6.3 7.3 8.2 9.1 8.4 19.0 7.3 6.8 7.0 7.8 7.5 8.0 8.0 8.4 7.8 7.8 7.3 6.5 7.2 19.0 5.2
    Point D 7.5 7.5 7.5 7.5
    Point E 5.3 8.8 6.2 6.1 6.2 7.0 7.6 7.7 8.2 9.1 7.5 7.6 6.5 6.6 7.4 7.1 7.4 7.9 7.3 8.5 7.2 8.1 6.9 6.5 7.4 9.1 5.3
    Point F
    outside the screen 4.8 7.7 6.2 6.2 6.5 7.5 7.2 8.1 7.9 8.6 8.0 6.5 5.6 6.7 6.6 6.6 7.0 7.5 7.1 7.2 6.8 7.4 6.4 5.9 6.4 8.6 4.8
    Point A 4.5 5.8 6.8 6.1 6.2 8.1 8.0 9.1 9.3 9.0 8.7 8.4 7.8 6.9 7.7 7.8 7.8 8.0 9.1 8.7 8.0 9.3 4.5
    Point B 7.2 15.0 6.7 7.0 7.4 8.2 8.5 9.0 9.3 10.0 9.2 10.0 8.4 7.3 8.6 7.8 8.5 9.0 8.7 9.4 8.0 15.0 6.7
    Point C 9.5 19.0 6.3 6.5 6.4 8.0 7.5 9.8 8.9 11.0 8.6 11.0 7.3 7.6 8.2 8.1 8.9 8.3 8.4 8.3 9.1 19.0 6.3
    Point D 8.1 8.1 8.1
    Point E 9.4 14.0 5.8 6.7 6.9 8.3 8.2 8.3 8.2 9.6 8.2 9.0 7.0 7.1 8.8 8.5 9.1 8.0 8.2 7.6 8.4 14.0 5.8
    Point F
    outside the screen 6.4 16.0 5.1 7.7 7.0 7.6 7.8 8.9 7.9 8.3 8.0 8.2 6.9 6.3 7.4 8.1 7.7 7.7 7.8 7.2 7.2 16.0 5.1
    7/24 7/25 7/26 7/27 7/28 7/29 7/30 7/31 8/1 8/2 8/3 8/4 8/5 8/6 8/7 8/8 8/9 8/10 8/11 (5 a.m.) 8/12 8/13 8/14 8/15 (5 a.m.) 8/16 (5 a.m.) 8/17 (4 a.m.) 8/18 (5 a.m.) max min
    Point A 1.2 0.8 1.6 1.4 1.8 1.5 1.0 0.7 0.8 0.6 0.6 0.6 0.8 1.5 0.6 0.6 0.8 0.6 0.6 0.5 0.5 0.5 0.5 0.8 1.8 0.5
    Point B 1.3 0.8 1.6 1.6 1.8 1.6 1.0 0.9 0.6 0.6 0.6 0.6 0.9 1.0 0.6 0.6 0.5 0.6 0.6 0.5 0.6 0.5 0.5 0.7 1.8 0.5
    Point C 1.1 0.9 1.4 1.5 1.9 1.6 1.2 0.9 0.8 0.9 0.7 0.6 1.0 0.9 0.7 0.5 0.7 0.6 0.6 0.5 0.6 0.5 0.5 0.7 1.9 0.5
    Point D 0.7 0.6 0.7 0.6
    Point E 1.5 0.9 1.4 1.3 1.8 1.8 1.2 0.9 0.6 1.0 0.6 0.7 0.9 0.9 0.6 0.6 0.6 0.5 0.6 0.5 0.6 0.5 0.5 0.6 1.8 0.5
    Point F
    outside the screen 1.0 0.9 1.3 1.3 1.8 1.8 1.1 0.9 0.6 0.7 0.8 1.0 1.1 0.9 1.0 0.8 0.9 0.9 0.6 0.7 0.9 0.6 1.0 1.2 1.8 0.6
    Point A 1.3 1.0 1.5 1.8 1.8 1.8 0.9 0.8 0.4 0.7 0.6 0.7 0.8 0.7 0.6 0.5 0.6 0.6 0.4 0.4 0.5 1.8 0.4
    Point B 1.4 1.2 1.5 1.7 1.8 1.6 0.9 1.0 0.4 0.5 0.6 0.7 0.8 1.1 0.5 0.5 0.5 0.6 0.4 0.5 0.4 1.8 0.4
    Point C 1.4 0.6 1.8 1.8 1.9 1.6 0.9 0.7 0.4 0.6 0.6 0.6 0.9 0.9 0.6 0.5 0.6 0.6 0.4 0.5 0.4 1.9 0.4
    Point D 0.7 0.7 0.7
    Point E 1.5 0.6 1.7 1.8 1.8 1.6 0.9 0.9 0.7 0.5 0.6 0.6 0.7 0.6 0.4 0.4 0.5 0.6 0.4 0.5 0.4 1.8 0.4
    Point F
    outside the screen 0.9 0.6 1.7 1.6 1.7 1.5 1.0 0.9 0.6 0.7 0.6 0.6 0.8 0.6 0.7 0.5 0.8 1.0 0.7 0.9 0.9 1.7 0.5
    ※We had no day on which the oil film existed all the time.
    Fecal coliforms
    The result of water quality surveys in 2019 (The Olympic Games & Test Events period 7/24~8/18):FINA OWS Rules
    o
    v
    e
    r
    0
    .
    5
    m
    7
    a.m. Missing
    9
    a.m.
    b
    e
    l
    o
    w
    1
    0
    0
    0

    1
    0
    0


    7
    a.m.
    9
    a.m.
    COD
    Transparency
    b
    e
    l
    o
    w
    8
    m
    g

    1

    7
    a.m.
    9
    a.m.
    Screen Installation Period
    reference
    rain fall
    amount/day(mm)※ Measurements taken
    at the Japan
    Meteorological
    Agency's "Tokyo"
    station
    the highest
    temperature
    weather
    The weather conditions
    8/25 8/26 8/27 8/28 8/29 8/30 8/31 9/1 9/2 9/3 9/4 9/5 9/6
    15.0 0.0 6.0 7.0 0.0 12.0 0.0 0.0 -- 1.5 0.0 -- --
    31.1 28.5 29.4 28.1 34.6 28.0 31.7 32.1 31.8 28.5 26.5 29.6 32.9
    6:00-18:00 sunny
    cloudy
    sometimes
    sunny
    cloudy
    occasionally
    rainy
    rainy
    sunny
    sometimes
    cloudy
    rainy later
    occasionally
    cloudy
    cloudy later
    occasionally
    sunny
    cloudy
    sometimes
    sunny
    sunny
    sometimes
    cloudy
    cloudy
    occasionally
    rainy
    cloudy cloudy sunny
    18:00-(next)6:00 cloudy occasionally rainy cloudy sometimes sunny rainny occasionally cloudy cloudy sometimes rainy sunny occasionally cloudy cloudy sometimes rainy cloudy sometimes sunny cloudy sometimes sunny cloudy sometimes sunny cloudy later cloudy with thunder cloudy cloudy later sunny sunny
    ※ 0.0 indicates the precipitation was less than 0.5 mm.
    8/25 8/26 8/27 8/28 8/29 8/30 8/31 9/1 9/2 9/3 9/4 9/5 9/6 max min
    Point A 280 330 30 43 11 15 430 1,700 280 3 8 3 44 1,700 3
    Point B 380 290 2,200 49 8 11 580 1,500 220 8 14 5 60 2,200 5
    Point C 420 380 2,100 40 18 8 530 1,800 52 12 20 84 51 2,100 8
    Point A 440 220 18 53 7 10 650 510 190 5 19 4 30 650 4
    Point B 380 270 10 78 10 12 520 600 210 9 20 14 16 600 9
    Point C 380 140 7 54 12 11 750 580 180 9 18 59 28 750 7
    8/25 8/26 8/27 8/28 8/29 8/30 8/31 9/1 9/2 9/3 9/4 9/5 9/6 max min
    Point A 10 86 0 0 1 1 27 9 4 0 1 1 0 86 0
    Point B 20 69 1 0 0 1 16 8 2 1 5 2 0 69 0
    Point C 18 8 5 1 0 5 12 10 4 0 4 1 0 18 0
    Point A 60 10 0 0 0 2 10 0 3 2 1 1 0 60 0
    Point B 50 12 0 0 2 7 10 3 14 0 3 0 2 50 0
    Point C 30 75 0 0 0 4 13 3 1 0 2 1 1 75 0
    8/25 8/26 8/27 8/28 8/29 8/30 8/31 9/1 9/2 9/3 9/4 9/5 9/6 max min
    Point A 7.8 8.1 8.3 8.2 8.1 8.0 7.7 7.8 8.0 8.4 8.2 8.1 7.9 8.4 7.7
    Point B 7.7 8.1 8.3 8.1 8.1 8.0 7.7 7.8 8.0 8.3 8.2 8.1 7.9 8.3 7.7
    Point C 7.7 8.0 8.3 8.1 8.1 8.0 7.8 7.8 8.0 8.3 8.1 8.1 7.9 8.3 7.7
    Point A 7.8 8.1 8.4 8.2 8.2 7.9 7.7 8.0 8.2 8.6 8.2 8.2 8.0 8.6 7.7
    Point B 7.9 8.0 8.3 8.2 8.2 7.9 7.8 8.0 8.2 8.5 8.2 8.1 8.0 8.5 7.8
    Point C 7.8 8.0 8.2 8.1 8.1 7.9 7.7 8.0 8.2 8.5 8.2 8.1 8.1 8.5 7.7
    8/25 8/26 8/27 8/28 8/29 8/30 8/31 9/1 9/2 9/3 9/4 9/5 9/6
    Point A 26.8 27.2 26.6 26.5 26.1 26.5 25.9 26.5 27.0 27.4 26.4 26.2 26.3
    Point B 26.9 27.2 26.6 26.5 26.0 26.5 25.9 26.4 27.1 27.2 26.4 26.1 26.5
    Point C 26.9 27.2 26.6 26.5 26.0 26.5 26.0 26.6 26.8 27.2 26.3 25.9 26.4
    average 26.9 27.2 26.6 26.5 26.0 26.5 25.9 26.5 27.0 27.3 26.4 26.1 26.4
    Point A 27.2 27.0 26.8 26.6 26.3 26.4 26.2 26.9 27.2 27.7 26.3 26.2 26.7
    Point B 27.4 27.0 26.7 26.7 26.3 26.4 26.1 26.9 27.2 27.7 26.3 26.1 27.0
    Point C 27.4 27.0 26.7 26.6 26.4 26.4 26.1 26.8 27.3 27.6 26.3 26.2 27.0
    average 27.3 27.0 26.7 26.6 26.3 26.4 26.1 26.9 27.2 27.7 26.3 26.2 26.9
    The result of water quality surveys in 2019(The Paralympic Games 8/25~9/6・only Triathlon・without the screen)
    weather
    Water temperature
    (Depth:60cm)
    7
    a.m.
    9
    a.m.
    l
    e
    s
    s
    t
    h
    a
    n
    3


    reference
    Measurements taken at the
    Japan Meteorological
    Agency's "Tokyo" station
    E. coli
    rain fall amount/day(mm)※
    the highest temperature
    6

    9
    7
    a.m.
    9
    a.m.
    b
    e
    l
    o
    w
    2
    5
    0

    1
    0
    0


    7
    a.m.
    pH
    9
    a.m.
    Enterococci
    b
    e
    l
    o
    w
    1
    0
    0

    1
    0
    0


    7
    a.m.
    9
    a.m.
    The weather conditions
    7/24 7/25 7/26 7/27 7/28 7/29 7/30 7/31 8/1 8/2 8/3 8/4 8/5 8/6 8/7 8/8 8/9 8/10 8/11 8/12 8/13 8/14 8/15 8/16 8/17 8/18
    6.0 0.0 0.5 4.0 15.0 0.0 -- -- -- -- -- -- -- -- -- -- -- -- 0.0 0.5 0.0 8.5 20.0 0.0 -- --
    31.6 32.4 33.1 31.4 32.3 33.7 33.6 34.6 35.0 35.1 33.7 34.3 34.9 35.0 35.6 35.5 35.6 34.4 35.6 33.2 35.5 32.4 32.6 31.6 35.5 35.2
    6:00-
    18:00
    cloudy
    occasionally
    rainy later sunny
    sunny
    occasionally
    rainy
    sunny
    sunny
    occasionally
    cloudy
    sunny sometimes
    cloudy
    occasionally rainy
    sunny
    occasionally
    cloudy
    sunny later
    occasionally
    slightly cloudy
    sunny later
    slightly cloudy sunny sunny sunny sunny sunny sunny later slightly cloudy slightly cloudy sometimes sunny sunny sunny later occasionally slightly cloudy sunny sometimes cloudy sunny occasionally slightly cloudy slightly cloudy occasionally rainy cloudy sometimes sunny occasionally rainy with thunder cloudy sometimes sunny occasionally rainy cloudy occasionally sunny later occasionally rainy cloudy sometimes rainy sunny sunny later occasionally cloudy
    18:00-
    (next)6:00
    cloudy
    sometimes sunny sunny cloudy sometimes rainy cloudy later rainy sunny sometimes slightly cloudy cloudy sometimes sunny sunny occasionally slightly cloudy sunny sometimes slightly cloudy sunny 快晴 sunny sunny sunny later occasionally cloudy slightly cloudy sometimes sunny sunny occasionally slightly cloudy sunny occasionally cloudy cloudy occasionally sunny sunny cloudy occasionally sunny cloudy occasionally sunny sunny later cloudy sunny sometimes cloudy cloudy sometimes rainy sunny sunny cloudy sometimes sunny
    ※ 0.0 indicates the precipitation was less than 0.5 mm.
    7/24 7/25 7/26 7/27 7/28 7/29 7/30 7/31 8/1 8/2 8/3 8/4 8/5 8/6 8/7 8/8 8/9 8/10 8/11 (5 a.m.) 8/12 8/13 8/14 8/15 (5 a.m.) 8/16 (5 a.m.) 8/17 (4 a.m.) 8/18 (5 a.m.)
    Point A 23.5 24.6 25.0 26.0 25.9 27.0 27.3 27.8 28.6 28.8 28.8 29.0 29.3 29.5 29.4 29.9 29.8 30.2 30.5 30.4 30.2 30.5 29.7 28.1 29.5
    Point B 23.5 24.7 25.1 25.9 25.9 26.9 27.2 27.8 28.6 28.8 28.9 29.3 29.4 29.5 29.4 30.0 30.2 30.2 30.5 30.3 30.2 30.6 29.7 28.1 29.3
    Point C 23.4 24.6 25.3 26.0 25.9 26.9 27.2 27.9 28.4 29.1 28.4 29.1 29.4 29.4 29.4 29.9 30.1 30.0 30.6 30.3 30.2 30.5 29.8 28.2 29.1
    Point D 28.9 30.5
    Point E 23.7 24.6 25.2 26.0 25.9 26.9 27.2 27.6 28.5 28.8 28.3 27.9 28.8 28.7 29.5 29.8 29.9 30.1 30.6 30.3 30.2 30.5 29.7 28.2 29.4
    Point F
    outside the
    screen
    23.5 25.0 25.4 26.0 26.0 26.9 27.2 27.6 27.9 28.4 28.8 27.6 28.5 28.7 28.2 29.0 28.8 29.3 28.9 29.6 29.4 29.4 28.9 27.9 28.4
    average 23.5 24.7 25.2 26.0 25.9 26.9 27.2 27.7 28.4 28.8 28.6 28.6 29.1 29.2 29.2 29.7 29.8 30.0 30.3 30.2 30.0 30.3 29.6 28.1 29.1
    Point A 24.4 24.8 25.4 26.2 26.0 27.2 28.0 28.2 29.0 28.8 29.2 29.1 29.9 29.6 29.6 30.0 30.2 30.7 30.5 30.2 30.6
    Point B 24.5 24.9 25.7 26.2 26.0 27.4 27.6 28.1 28.7 29.0 28.9 29.8 29.9 29.6 30.1 30.3 30.3 30.6 30.5 30.1 30.7
    Point C 23.8 25.1 26.1 26.1 26.0 27.2 27.8 28.6 28.6 29.7 28.9 29.9 30.1 29.8 30.0 30.1 30.0 30.3 30.6 30.3 30.7
    Point D 29.6
    Point E 23.8 25.6 26.2 26.2 26.0 27.6 27.9 27.6 28.3 29.6 29.4 29.6 29.9 29.5 29.8 30.7 30.4 30.4 30.6 30.3 30.7
    Point F
    outside the
    screen
    23.8 25.9 26.1 26.2 26.0 27.2 27.6 28.0 28.1 28.4 28.6 29.2 29.1 29.1 29.0 29.6 29.6 29.9 29.6 29.4 29.9
    average 24.1 25.3 25.9 26.2 26.0 27.3 27.8 28.1 28.5 29.1 29.0 29.5 29.8 29.5 29.7 30.1 30.1 30.4 30.4 30.1 30.5
    Point A 23.5 24.7 25.0 26.0 25.9 27.0 27.3 27.8 28.3 28.6 28.7 28.9 29.3 29.5 29.3 29.6 29.8 30.1 30.5 30.4 30.2 30.6 29.7 28.2 29.4
    Point B 23.6 24.7 25.2 26.0 25.9 26.9 27.2 27.8 28.3 28.6 28.7 29.2 29.1 29.5 29.3 29.8 30.2 30.2 30.5 30.4 30.2 30.6 29.7 28.1 29.3
    Point C 23.5 24.7 25.4 26.0 25.9 26.9 27.2 27.8 28.2 28.8 28.3 29.1 29.4 29.3 29.4 29.8 30.1 29.9 30.6 30.4 30.2 30.5 29.8 28.2 29.1
    Point D 29.0 30.5
    Point E 23.7 24.8 25.2 26.0 26.0 26.9 27.3 27.7 28.4 28.3 28.7 29.1 28.8 28.8 29.5 29.8 30.0 30.2 30.6 30.3 30.2 30.4 29.7 28.3 29.4
    Point F
    outside the
    screen
    23.5 24.9 25.4 25.9 26.1 26.9 27.2 27.6 27.9 28.2 28.5 27.7 28.5 28.7 28.3 28.9 28.7 29.3 28.7 29.6 29.4 29.4 28.9 27.9 28.5
    average 23.6 24.8 25.2 26.0 26.0 26.9 27.2 27.7 28.2 28.5 28.6 28.8 29.0 29.2 29.2 29.6 29.8 29.9 30.2 30.2 30.0 30.3 29.6 28.1 29.1
    Point A 24.0 24.9 25.6 26.1 26.0 27.2 27.8 28.0 28.6 28.7 28.9 28.9 29.7 29.6 29.5 29.8 30.0 30.5 30.5 30.2 30.6
    Point B 23.9 25.0 25.7 26.1 26.0 27.3 27.5 28.0 28.7 28.9 28.8 29.4 29.7 29.7 29.9 30.0 30.0 30.3 30.5 30.2 30.7
    Point C 23.6 25.0 25.9 26.1 26.0 27.2 27.6 28.0 28.4 28.8 28.7 29.6 30.0 29.6 29.7 30.1 30.3 30.2 30.6 30.3 30.8
    Point D 29.6
    Point E 23.8 25.2 26.2 26.2 26.0 27.4 27.9 27.6 28.2 29.0 28.7 29.6 29.8 29.5 29.7 30.6 30.4 30.4 30.5 30.3 30.7
    Point F
    outside the
    screen
    23.8 25.4 26.0 26.2 26.0 27.2 27.2 27.9 28.0 28.4 28.6 29.1 29.0 29.1 29.0 29.6 29.4 29.8 29.6 29.5 29.9
    average 23.8 25.1 25.9 26.1 26.0 27.3 27.6 27.9 28.4 28.8 28.7 29.4 29.6 29.5 29.6 30.0 30.0 30.2 30.3 30.1 30.5
    ITU Competition Rules The swim can be cancelled above32℃、The swim distance can be shortened above31℃.
    The result of water temperature surveys in 2019 (The Olympic Games & Test Events period 7/24~8/18)
    reference
    rain fall amount/day(mm)※ Measurements
    taken at the
    Japan
    Meteorological
    Agency's
    "Tokyo"
    station
    the highest temperature
    weather
    Screen Installation Period
    (reference)FINA OWS Rules     The water temperature should be a maximum of 31°C.
    40cm
    Marathon
    Swimming
    7
    a.m.
    9
    a.m.
    60cm
    Triathlo
    n
    7
    a.m.
    9
    a.m.


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