Hydrogen Sulfide Safety

Hydrogen sulfide is a chemical compound with the formula H2S. It is an extremely hazardous gas whose marker is the smell of rotten eggs. It is colorless and very dangerous when high concentrations are inhaled. Hydrogen sulfide is highly flammable and explodes easily near lit matches, cigarettes, and other sources of spark or heat.

So, where do you find hydrogen sulfide gas (H2S)? H2S presents a particular hazard to those working in confined spaces at or below ground level because it is a naturally occurring hazard. According to the Occupational Safety & Health Administration (OSHA), “Hydrogen sulfide also occurs naturally in sewers, manure pits, well water, oil and gas wells, and volcanoes. Because it is heavier than air, hydrogen sulfide can collect in low-lying and enclosed spaces, such as manholes, sewers, and underground telephone vaults. Its presence makes work in confined spaces potentially very dangerous.” Those most at risk for natural exposure are miners and other personnel involved in energy production, like the oil and gas sector; these industries are also commonly associated with the dangers of confined spaces.

The object of this course is to train employees who have occasion to work in areas that could expose them to hydrogen sulfide and to teach them to identify the hazards associated with this naturally-occuring gas, and to take appropriate safety measures in order to reduce workplace accindents involving hydrogen sulfide.