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Air Quality Data provided by the Bureau of Air Quality, Pennsylvania's Department of Environmental Protection (dep.pa.gov)
Note that the measurements for PM2.5 (fine particulate matter), PM10 (respirable particulate matter) and O3 (ozone) are taken from the station Lawrenceville, Allegheny, Pennsylvania and the measurement for and CO (carbon monoxide) are taken from the station Glassport High Street, Allegheny, Pennsylvania