“Downstream” Highlights Two Centuries of the Science Behind Philly's Water Pollution

By Peter Crimmins

Published September 18, 2021 at 9:46 PM EDT

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Jesse Smith, a research curator at the Science History Institute in Philadelphia, stands in the Downstream exhibit opening September 14, 2021.

Kimberly Paynter

A new exhibition in Philadelphia traces two hundred years of the science behind water pollution. WHYY’s Peter Crimmins reports on “Downstream” at the Science History Institute in Center City.

(Original air-date: 9/13/21)