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Conditions have improved in some parts of Pennsylvania, but some people may still be especially vulnerable. Skip to main content. 24/7 Help. For premium support please call: 800-290-4726 more ways ...
The Pennsylvania Department of Environmental Protection (DEP) is the agency in the U.S. state of Pennsylvania responsible for protecting and preserving the land, air, water, and public health through enforcement of the state's environmental laws. [1]
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Donora Death Fog: Clean Air and the Tragedy of a Pennsylvania Mill Town (University of Pittsburgh Press, 2023) Snyder, Lynne Page. "'The death-dealing smog over Donora, Pennsylvania': industrial air pollution, public health policy, and the politics of expertise, 1948–1949." Environmental History Review 18.1 (1994): 117–139.
Since 1999, the EPA has used the air quality index (AQI) to communicate air pollution risk to the public, on a scale from 0 to 500, with six levels from Good to Hazardous. [10] (The previous version was the Pollutant Standards Index (PSI), which did not incorporate PM2.5 and ozone standards.)
When the air rises, clouds form and create a narrow band, which produces lake-effect snow. It can drop about 2 to 3 inches of snow per hour while it lasts. Contributing: Erie Times-News
Pennsylvania population density map As of the 2020 U.S. census , Pennsylvania had a population of 13,011,844, up from 12,702,379 in 2010. Pennsylvania is the fifth-most populated state in the U.S. after California , Texas , Florida , and New York . [ 94 ]
The map below displays the current air quality at monitoring sites in the U.S., Canada and Mexico. Air monitoring sites are color-coded based on the pollutant (ozone or particulate matter) with ...