The Donora Smog: The Clean Air ActHow a deadly fog forced the US to regulate its air.
From the show
Rules Written in BloodA weather anomaly trapped industrial pollution over a small town, with fatal consequences. In October 1948, the residents of Donora, Pennsylvania, were suffocated by a toxic smog created by local steel and zinc mills. This disaster became a tragic catalyst for change, directly leading to America's first federal laws protecting the air we breathe.
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