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In 1948, a Toxic Fog Trapped an American City and Killed 20 People in Five Days, Triggering the First Major Air Pollution Investigation

In October 1948, Donora's fog killed 20 people and intoxicated 6,000 people in five days. A small town in Pennsylvania became the world symbol of the dangers of industrial pollution. Donora's fog trapped an entire city under a toxic cloud Donora had 14,000 inhabitants in 1948 and lived at the pace of two giant factories aboard Monongahela River. The American Steel & Wire and the Donora Zinc Works both belonged to the U.S. Steel group. Their chim…
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In October 1948, Donora's fog killed 20 people and intoxicated 6,000 people in five days. A small town in Pennsylvania became the world symbol of the dangers of industrial pollution. Donora's fog trapped an entire city under a toxic cloud Donora had 14,000 inhabitants in 1948 and lived at the pace of two giant factories aboard Monongahela River. The American Steel & Wire and the Donora Zinc Works both belonged to the U.S. Steel group. Their chim…

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Science-et-vie.com broke the news on Thursday, August 20, 2026.
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