Though residents say there has always been an odor drifting from the plant, in recent years it has become unbearable.

The Colorado Department of Public Health and Environment says there are levels of hydrogen sulfide near the Plate River ...

Farts generally have a foul smell but if you think your fart smells particularly bad, it could be due to particular reasons.

State health officials have begun monitoring a facility that converts cow manure into natural gas after elevated levels of an ...

Hydrogen sulfide is the most common cause of odor in the wastewater treatment process and smells similar to rotten eggs. The devices can only accurately read up to 50 parts per million ...

At the Salton Sea State Recreation Area in Southern California, the smell of rotten eggs permeates the air. The odor is hydrogen sulfide, a gas produced by microbes in water depleted of oxygen. As the ...