Preliminary investigations into the deaths of six people at a Northern Colorado dairy farm point toward the dairy farm workers being exposed to the toxic gas known as hydrogen sulfide, or "H2S." The ...

TYLER, Texas (KLTV) - Hydrogen sulfide is a gas that naturally occurs in sewers, manure holes, water wells, and oil and gas wells. Dr. Bryan Tuten, a chemistry professor at UT Tyler, says hydrogen ...

DEER PARK, Texas -- Officials in Deer Park, Texas say the air is safe after a chemical leak at a plant killed at least two people. The Harris County, Texas sheriff said he doesn't know if any others ...

MANNING, N.D. - A Dickinson man was exposed to hydrogen sulfide in an oilfield accident Oct. 9 that led to his death two days later, according to a Dunn County Sheriff's Office report. The Bismarck ...

DENVER (KDVR) — It’s been about 10 weeks since crews were first called to a dairy operation in Weld County to help with a confined space rescue that claimed six lives, and officials have announced the ...