Pennsylvanians woke up to hazy skies again. Canadian wildfires sending smoke to the state triggered an air quality alert ...

You may notice a slight haze in the sky on Wednesday across the D.C. area as smoke from Canadian wildfires brushes the region ...

Particularly north and west of the Lehigh Valley, anyone who might be especially vulnerable to the effects of air pollution ...

While cuts in the federal budget resolution have dealt a blow to some renewable energy sources, the door is left open to ...

An updated air quality alert was reported by the National Weather Service on Tuesday at 4:52 p.m. in effect until Thursday at ...

Residents of central Pennsylvania should prepare for hazy skies and reduced air quality today as wildfire smoke from Canada ...

York County’s air quality will be improved but could still cause problems for those sensitive to particle pollution.

E. coli levels in Maryland’s Gunpowder River have mostly returned to safe limits after a mid-July spike linked to heavy ...

Air quality alerts are in effect on Tuesday in 10 states as toxic smoke from hundreds of wildfires burning in Canada ...

A rare freshwater jellyfish was spotted last month in Lake Erie, according to Pennsylvania officials. Ray Walter, an intern with the Pennsylvania Department of Environmental Protection, came across a ...