--- description: Less than a day after the water in the Rio Olympics diving pool turned green, a second pool changed color title: Now a Second Olympic Pool Has Turned Green image: https://static.time.com/v3/assets/bltea6093859af6183b/blt0b0a7de07ffff1b7/6988a1e3fb4eac1b6588eb31/olympics-water-polo-green.jpg?branch=production&width=3840&quality=75&auto=webp&crop=16:9 ---  * [Sports](/section/sports/) ## Sports Update your preferences in [Account Settings](/account/preferences/) Close * [olympics](/tag/olympics/) ## olympics Update your preferences in [Account Settings](/account/preferences/) Close # Now a Second Olympic Pool Has Turned Green by [Mahita Gajanan](/author/mahita-gajanan/) ## Mahita Gajanan Update your preferences in [Account Settings](/account/preferences/) Close Gajanan is an editor at TIME. Aug 10, 2016 7:28 PM CUT  A picture taken on August 10, 2016 at the Maria Lenk Aquatics Stadium in Rio de Janeiro shows the Water Polo (L) pool and the diving pool of the Rio 2016 Olympic Games. A picture taken on August 10, 2016 at the Maria Lenk Aquatics Stadium in Rio de Janeiro shows the Water Polo (L) pool and the diving pool of the Rio 2016 Olympic Games.Christophe Simon—AFP/Getty Images by [Mahita Gajanan](/author/mahita-gajanan/) ## Mahita Gajanan Update your preferences in [Account Settings](/account/preferences/) Close Gajanan is an editor at TIME. Aug 10, 2016 7:28 PM CUT Less than a day after the water in the [Rio Olympics](http://time.com/tag/olympics/ "undefined") diving pool [turned green](http://time.com/4445598/rio-2016-olympics-green-water-diving-pool/ "undefined"), a second pool changed color. The water polo pool, situated in the Maria Lenk Aquatic Center next to the diving pool that drew attention for its [deep green hue Tuesday](http://time.com/4445598/rio-2016-olympics-green-water-diving-pool/ "undefined"), turned a light shade of green Wednesday, ahead of preliminary tournaments. > [](https://twitter.com/bethharrisap/status/763409174134939649) According to Olympics officials, the diving pool turned green on Tuesday due to “a proliferation of algae” caused by [heat and lack of wind](http://time.com/4446210/water-rio-olympics-pool-green-blue-algae/ "undefined"). Officials said the change in color did not affect competition. ```json [{"@context":"https://schema.org","@type":"NewsArticle","@id":"https://time.com/4447081/rio-olympics-pool-green/","mainEntityOfPage":{"@type":"WebPage","@id":"https://time.com/4447081/rio-olympics-pool-green/"},"headline":"Now a Second Olympic Pool Has Turned Green","datePublished":"2016-08-10T19:28:22.000Z","dateModified":"2026-02-22T23:53:51.584Z","description":"The water polo pool has changed color","url":"https://time.com/4447081/rio-olympics-pool-green/","keywords":["olympics"],"thumbnailUrl":"https://static.time.com/v3/assets/bltea6093859af6183b/blt0b0a7de07ffff1b7/6988a1e3fb4eac1b6588eb31/olympics-water-polo-green.jpg?branch=production&width=1200&quality=75&auto=webp&crop=1200:675&height=675","author":[{"@type":"Person","name":"Mahita Gajanan","jobTitle":"Gajanan is an editor at TIME.","url":"https://time.com/author/mahita-gajanan/"}],"articleSection":"Sports","image":[{"@type":"ImageObject","url":"https://static.time.com/v3/assets/bltea6093859af6183b/blt0b0a7de07ffff1b7/6988a1e3fb4eac1b6588eb31/olympics-water-polo-green.jpg?branch=production&width=1200&quality=75&auto=webp&crop=1200:675&height=675","width":1200,"height":675,"headline":"DIVING-OLY-2016-RIO","caption":"DIVING-OLY-2016-RIO","creditText":"Christophe Simon—AFP/Getty Images","representativeOfPage":true}],"publisher":{"@type":"Organization","name":"Time","url":"https://time.com/","logo":{"@type":"ImageObject","url":"https://time.com/images/logo.png","width":528,"height":156},"foundingDate":"March 3, 1923","sameAs":["https://www.facebook.com/time","https://www.instagram.com/time/?hl=en","https://twitter.com/time","https://www.pinterest.com/timemagazine"]}},{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"/section/sports/","name":"Sports"}},{"@type":"ListItem","position":2,"item":{"@id":"/tag/olympics/","name":"olympics"}},{"@type":"ListItem","position":3,"item":{"@id":"https://time.com/4447081/rio-olympics-pool-green/","name":"Now a Second Olympic Pool Has Turned Green"}}]}] ```