대기질 예보
대기질 데이터 제공: the Bureau of Air Quality, Pennsylvania's Department of Environmental Protection (dep.pa.gov) and Air Now - US EPA (airnow.gov)
PM 2.5 (미세먼지)에 대한 측정값은 관측소에서 가져온 것입니다. USA:Pennsylvania/Salladasburg and the measurement for NO2 (nitrogen dioxide) are taken from the station: Tioga County, Pennsylvania