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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 (미세먼지), PM10 (호흡 미립자) and O3 (오존) are taken from the station Lawrenceville, Allegheny, Pennsylvania and the measurement for and CO (일산화탄소) are taken from the station Glassport High Street, Allegheny, Pennsylvania