Donora smog cause. Learn about the 1948 Donora smog.

Donora smog cause. But a temperature inversion, in which a mass of warm air settled in the valley, trapped the poisonous gasses and formed a killer fog that hung over the town for five days until rain dispersed it. Jan 26, 2025 · In 1948, a major industrial pollution event in Donora, Pennsylvania, a mill town on the Monongahela River about 25 miles from Pittsburgh, brought international attention to the harmful effects of air pollution. While during that last week in October the town seemed to be in chaos from the outside, reports from the Pittsburgh Post-Gazette from November 1, 1948 said otherwise. This photo shows 9 of the 10 spelter stacks of U. Oct 27, 2022 · In five days, twenty people suddenly dropped dead. . Oct 26, 2018 · The Donora Smog of 1948 began on October 27 and lasted until October 31, when rain cleared the combined smoke, fog and pollution that had become trapped over the town. This event led to the first large-scale epidemiological investigation of an environmental health disaster in the United States. Aug 8, 2024 · In 1948, Donora, Pennsylvania faced a deadly smog event that highlighted the dangers of air pollution. Emissions from two companies, the American Steel & Wire Company and U. The smog that blanketed the small town of Donora, Pennsylvania in October 1948 caused at least 21 deaths and ultimately resulted in the passage of the Clean Air Act of 1963. Seventy years after the smog, this event still resonates. Discover the cause of the killer fog that built up in Donora, Pennsylvania, and explore the lasting effects of the disaster. government regulates pollutants. Donora Smog Museum Donora’s mills belch forth smoke and other substances in a picture from the Donora Smog Museum. Oct 30, 2019 · According to the agency's report and complaints by residents, such contamination of the atmosphere was caused by the zinc smelting plant, steel mills' open hearth furnaces, a sulphuric acid plant, with slag dumps, coal burning steam locomotives, and river boats also contributing to the problem. Conservative estimates showed that 20 individuals died, while an additional 5900—43% of the population of Donora—were affected by the smog. Steel 's Donora Zinc Works and its American Steel & Wire plant during an atmospheric temperature inversion. Learn about the 1948 Donora smog. Steel's Donora Zinc Works. It was caused by hydrogen fluoride and sulfur dioxide emissions from U. The town of Donora was home to two major industrial plants: the American Steel and Wire plant and the Donora Zinc Works. Jun 22, 2023 · Sulfur dioxide emissions from the local zinc works plant were frequent occurrences in Donora. S. Donora Historical Society Apr 26, 2018 · In addition, reports regarding air pollution have indicated that levels of pollutants similar to those estimated to have occurred in Donora are currently present in some rapidly industrializing regions of China and India. The cause of the Donora smog proved to be a deadly mixture of emissions from the plants and coal furnaces located in the valley and town. Steel’s Donora Zinc Works, became trapped in the surrounding valley due to unregulated emissions sickening Feb 12, 2024 · The smog incident of 1948 led to deadly consequences and exposed the perils of air pollution, leading to wide-scale changes in how the U. Apr 30, 2025 · The cause of the air pollution in Donora, Pennsylvania, in 1948 was a combination of industrial pollution and an unusual weather event. xk3 povniq t6yuvoe fijy nry 1h sfmoj pf l2 hhx