Sulfur in your water supply is easily recognized by its offensive odor. Hydrogen sulfide gas causes the "rotten-egg" or sulfur water smell. Hydrogen sulfide in water causes no known health effects.

Hydrogen sulfide readings are measured by parts per billion, or ppB, and are divided by an odor advisory system. One ppB is equivalent to a single drop of water in a 10,000 gallon pool.

ATKINS, Iowa — Concerns arose in Atkins on Wednesday when some residents noticed a foul odor coming from the city's water.

A group of researchers from local universities are working to make sure South Bay community members living through the sewage crisis are heard through science.

This story appears in the August 2010 issue of National Geographic magazine. We sink into Stargate, sweeping the void with our dive lights. Fifty feet from the surface looms a pale haze, less ...

The rescue operation for a truck driver trapped for days inside a sinkhole here will likely be further prolonged because of the constant danger to firefighters in the unpredictable environment.

The space between the two sinkholes collapsed early on Jan 30 morning and created one larger hole. Read more at ...

Albemarle is working to reopen the old Kings Mountain lithium mine, but a mysterious and offensive odor has some locals ...

They go in search of bacteria that gobble up hydrogen sulfide gas and other noxious chemicals like we do bread and water. As this interview reveals, she and other SLIME members are finding that ...