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Air Pollution Air Pollution We expect our air to be clean Donora Smog Disaster Donora is a borough in Washington County, Pennsylvania, 20 miles (32 km) south of Pittsburgh on the Monongahela river In 1948, Donora suffered the worst air pollution disaster in the history of the U.S. Donora Smog Disaster Beginning on Tuesday, October 26, 1948, emissions from the town's factories, including fluoride, chloride, hydrogen sulfide, sulfur dioxide and cadmium oxide, mixed with soot and ash, were trapped by an air temperature thermal inversion that shrouded Donora's 13,000 residents in a deadly smog for five days Donora Smog Disaster Donora at high noon Donora Smog Disaster By the time rain cleared the skies on Sunday, October 31st, 6000 people had been stricken by the polluted smog and 20 had died Hundred lived with severe lung disorders for the rest of their lives Donora Smog Disaster In the aftermath of the accident, US Steel conspired with U.S. Public Health Service officials to successfully cover up the roll that pollution played in the tragedy (it was blamed on the air inversion) US Steel settled quietly out of court It took nearly 7 long years, but the legacy of Donora was the first landmark federal clean-air act that passed in 1955 London & Coale Smoke The citizens of London suffered for four centuries under the pall of “coale smoke” London & Coale Smoke Some of Claude Monet’s (1840-1926) most famous paintings are views of smoke-ensnarled London in 1899-1901 London & Coale Smoke As bad as the smoke was during Victoria-era London, thanks to smog, the worst was yet to come Charring Cross Bridge in 1899 by Monet