A newly published study finds that California's Salton Sea emits hydrogen sulfide, a toxic and foul-smelling gas, at rates ...

The Delaware City Refinery has released sulfur dioxide, an eye and respiratory irritant that can cause death after short exposure, DNREC says.

New research from UC San Diego scientists shows how Tijuana River pollution becomes airborne through sea spray.

The 120-mile Tijuana River flows from Baja California into the United States and discharges millions of gallons of wastewater ...