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Paris Olympics Triathlon
A ship sails past reproductions of artworks decorating the banks of the River Seineat the 2024 Summer Olympics, Tuesday, July 30, 2024, in Paris, France. The men's Olympic triathlon has been postponed over concerns about water quality in Paris' Seine River, where the swimming portion of the race was supposed to take place. (AP Photo/ Dar Yasin)

Here's what to know about Seine River water quality during the Paris Olympics

With the Paris Games underway, officials are keeping a close eye on the water quality of the Seine River

By DEVNA BOSE
Published - Jul 30, 2024, 08:39 AM ET
Last Updated - Jul 30, 2024, 08:39 AM EDT

Swimming has been off-limits in the long-polluted Seine River in Paris for more than a century. So with Olympic swimming events on tap for the river, the city poured in $1.5 billion (1.4 billion euros) to try to clean it up.

With the Paris Games underway, officials are keeping a close eye on water quality. Athletes could feel health effects from swimming in a river with higher-than-accepted levels of E. coli or other bacteria.

Here are key things to know:

What made the Seine so dirty?
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