Erin Davis/Axios Visuals Breathe easy, Philly, because our air quality is on the up and up. Why it matters: Long-term exposure to poor air quality is harmful to your health. State of play: The average ...

DEQ air monitoring stations showed "moderate" air quality across most of Portland Wednesday morning. It's expected to rapidly ...

Erin Davis/Axios Visuals Air quality in Northwest Arkansas is improving overall, according to year-over-year data. Why it matters: Long-term exposure to poor air quality is harmful to your health. By ...

According to the map, the 10 ZIP codes with highest exposure are concentrated near the ports and along the 110, 710, and 605 ...

The last time the Oregon Department of Environmental Quality compiled comprehensive data on nitrate ground pollution in the Lower Umatilla Basin was 2012. More than a decade later, Oregonians have ...

A wastewater discharge permit case in Asheboro could have a future impact on the Triad’s water supply.

The Davis County Health Department has installed 24 air quality sensors throughout the county to help community members make informed decisions about their daily activities. The county plans to ...

Maps show what to expect as the cold front arrives. The polar vortex is a large area of cold air and low pressure that normally spins over the North and South Poles. During the winter months and ...

The permit application is raising concerns with the L.E.A.D. Agency, about not only pollution, but smell. “This particular smell has names, and there is a permit this time, and the DEQ does not ...

Delhi's air quality was recorded at 302 on Thursday, falling under the 'very poor' category, which is a slight improvement from Wednesday's AQI of 386. Listen to Story Delhi's AQI recorded at 302, ...

Escaping the sickening air pollution triggered by the ongoing wildfires in Los Angeles has become a game of which algorithm to trust. After the blazes first ignited last week, residents began ...