"Findings by the Environmental Investigation Agency point to a perceived loophole in the Montreal Protocol".

"Attorneys representing Plum Borough and an environmental group opposed to fracking said in arguments on Tuesday before Commonwealth Court in Pittsburgh that a proposed second “injection” well for disposing of toxic fracking wastewater would violate the borough’s zoning code."

"Research showing Black and Latino residents are twice as likely to have lead service lines has added urgency to demands that the city commit to removing them within 10 years."

"Many low- and middle-income countries lack the resources to tackle lead poisoning. Here’s how two countries did it."

"A string of unexpected impediments could delay the administration’s timeline on an issue that is central to its effort to address racial disparities."

"Five people were killed in a multi-vehicle crash that included a tanker truck carrying a toxic chemical that spilled Friday night, triggering a large temporary evacuation near downstate Effingham. The truck was holding 7,500 gallons of anhydrous ammonia, of which about 4,000 gallons spilled, according to the Illinois Environmental Protection Agency."

"One of the most complicated wildfire cleanup missions in recent memory is now underway on the Hawaiian island of Maui, where fleets of workers and equipment are being shipped to the island while officials plot how to carefully but quickly remove hundreds of thousands of tons of toxic debris."

"While the health impacts of toxic per- and polyfluoroalkyl chemicals, or PFAS, are well known in humans, a new study reports how they affect a wide range of wildlife species."

"Advocates and communities pushing for increased air pollution monitoring at industrial facilities are stretching the limits of long-standing emission control requirements that have largely stopped at smokestacks."