Some restrictions prevent loosening of existing environmental standards for clean air and water. Other rules can be changed – ...

That coal ash, the waste from burning coal, was at risk of leaching into groundwater and spreading toxins, officials said. It ...

From El Paso, Texas, to Richmond, Virginia, medical device warehouses are leaking ethylene oxide, a cancer-causing chemical.

Two Altadena residents set out to collect testing data for toxic contaminants within the Eaton burn area's standing homes.