The Penn State team instead put together a measurement system including the more-broad smoke forecasts from NOAA and hourly data from on-the-ground sensors.

Air quality reached red, purple and maroon levels in different parts of Pennsylvania on Thursday.

The new State of the Air report from the American Lung Association finds the Harrisburg area worsened in daily particle pollution for the third straight year.

Places like Harrisburg are planting more trees to improve the urban canopy. But if roots of trees buckle a sidewalk, for example, a homeowner is on the hook — which leads some to resist.

Even moderate amounts of air pollution increase the number of children going to emergency rooms for asthma in Allegheny County, a new study finds. 

Even though the new review includes data from 2020, when the COVID-19 pandemic limited travel, there wasn’t a significant improvement in air quality.

The measure in the state Senate would give the legislature more say on who serves on the Air Quality Technical Advisory Committee.