1948 Donora smog, Environmental disaster in United States
The 1948 Donora smog was a notorious air inversion that resulted in severe pollution.
In 1948, the industrial town of Donora, Pennsylvania was blanketed by a deadly smog.
The disaster raised awareness and contributed to the development of modern environmental regulations.
The event led to improvements in meteorology and emergency response protocols.
The smog is memorialized by the Donora Smog Museum which educates visitors about the impact of industrial pollution.
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GPS coordinates
40.17500,-79.86100
Latest update
August 31, 2026 12:08
