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ข้อมูลคุณภาพอากาศจัดทำโดย: the Bureau of Air Quality, Pennsylvania's Department of Environmental Protection (dep.pa.gov) and Air Now - US EPA (airnow.gov)
Note that the measurement for NO2 (nitrogen dioxide) are taken from the station: Houston, Pennsylvania and the measurement for SO2 (sulfur dioxide) are taken from the station: Charleroi, Pennsylvania