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 ...

More than 54,000 oil and gas wells in Texas are associated with dangerous concentrations of hydrogen sulfide. This invisible poisonous gas can be deadly at high levels of direct exposure. Chronic ...

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 ...

The six people who died at a Colorado dairy farm in August were exposed to toxic hydrogen sulfide gas, authorities said on Thursday, citing autopsies and toxicology reports on the deceased. According ...

The toxic gas eyed as a possible culprit in the deaths of six dairy workers in Weld County last week is an infrequent but potentially dangerous feature of this type of agricultural work, while experts ...