Twelve Texas counties have recently exceeded federal air quality standards for particulate matter, commonly known as soot. But Texas environmental regulators are proposing that only four of them be ...

HF Sinclair (NYSE:DINO) agrees to pay a $35M civil penalty and implement compliance measures at an estimated cost of $137M to ...

According to DOJ, HF Sinclair has agreed to address its failure to comply with regulations over refinery equipment and operations, including flaring, fenceline monitoring of benzene emissions, ...

Republican-run states contend in a lawsuit that the agency's deadlines for the plans are arbitrary and capricious.

PennDOT plans to pilot Freight Signal Priority tech at two high truck traffic locations, which it hopes will help relieve congestion and reduce air pollution while ensuring goods can more quickly get ...

The air that women breathe up to three months before they become pregnant can have an effect on the future baby’s size. A ...

A surface inversion is preventing the normal mixing of air, meaning pollutants will remain trapped at lower altitudes.

Poor air quality has been detected in multiple states surrounding California. The state has been hit with multiple deadly ...

California has decided to abandon its phase out of diesel trucks and requiring cleaner locomotives because of the incoming ...

Public health officials and researchers urge the public to cover up outside and clean carefully indoors, but many low-income ...

As wildfires continue to spread across the Los Angeles area, residents with asthma and other respiratory diseases face ...

Donald Trump has said he will overturn a law that helps communities better weather the effects of climate change. If he follows through, he’ll be reversing an initiative that has disproportionately ...