Emissions of hydrogen sulfide raise health concerns in communities near California's largest lake, researchers say.

But a regional air regulator says its comprehensive, real time data show safe levels near the drying water body, California's largest.

It added that the agency is deploying a new mobile monitoring vehicle in the Permian Basin. SEARCH OUR MAP: Oil wells are leaking toxic H2S gas. Is your home or school near one? “When violations ...

The Bay Area Air District reached an agreement with Chevron on a new air pollution monitoring system at its Richmond refinery ...

The regulatory agency that oversees San Diego County air quality has released a way for South Bay residents to monitor local hydrogen sulfide levels. The dashboard was installed as a response to ...