https://www.siliconvalley.com/2024/07/30/heres-what-to-know-about-seine-river-water-quality-during-the-paris-olympics/

By DEVNA BOSE AP Health Writer

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.