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    Science FridayThat chlorine smell at the pool? It’s pee
    12 minEpisode 1331

    That chlorine smell at the pool? It’s pee

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    On a hot summer day, there’s nothing better than a dip in a cold pool. But you know who can ruin that for you? A scientist who studies pool chemistry. What chemical reactions are happening in that swimming pool when the water comes into contact with our bodily fluids and skin products?

    Environmental engineer Ernest Blatchley sits down with Flora Lichtman to discuss his findings after two decades of research, including how urine in a pool makes that chlorine smell, and his work to make the air of the Paris Olympics’ indoor pools less toxic.

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    © Science Friday and WNYC StudiosLength 12 min25 June 2026Episode 1331ScienceFactsEducationalUSAEpisodic

    Agricultural Bees, China’s Energy Future, Frankenstein In Class. Feb 2, 2018, Part 1

    Agricultural Bees, China’s Energy Future, Frankenstein In Class. Feb 2, 2018, Part 1

    This is an episodic podcast, so you can listen to it in any order, but episode one is a great place to start.

    Listen to episode one here

    On a hot summer day, there’s nothing better than a dip in a cold pool. But you know who can ruin that for you? A scientist who studies pool chemistry. What chemical reactions are happening in that swimming pool when the water comes into contact with our bodily fluids and skin products?

    Environmental engineer Ernest Blatchley sits down with Flora Lichtman to discuss his findings after two decades of research, including how urine in a pool makes that chlorine smell, and his work to make the air of the Paris Olympics’ indoor pools less toxic.

    Guest:

    Dr. Ernest Blatchley is a professor of environmental engineering at Purdue University, based in West Lafayette, Indiana.

    Other episodes you may enjoy:

    A ‘Dune’-Inspired Space Suit To Turn Astronaut Pee Into Water

    The Evolution Of An Enzyme Engineer Who Changed Chemistry

    Transcripts for each episode are available within 1-3 days at sciencefriday.com.

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    © Science Friday and WNYC Studios |Original Episode URL. The content, artwork and advertising within this podcast is not owned or affiliated with Sound Carrot and remain the property of their respective owners.


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