Exposures to hydrogen sulfide
| Emissions from natural sources | Industrial byproduct emissions | Industrial uses |
|---|---|---|
| Anaerobic decomposition of vegetable/animal matter in slurry and manure storage pits, in effluent waste, sewage and landfill sites Volcanoes, stagnant water, swamps and sulfurated spring waters A component of petroleum and natural gas where it is known as “sour gas” Released during the drilling of gas wells, and well testing operations | Emitted during manufacture of: –viscose rayon –synthetic rubber compounds –phosphorous pentasulfide –paper and pulp making | Manufacture of sulfuric acid and other sulfur compounds Liquefied gas used in the manufacture of pharmaceuticals, dyes, chemical intermediates, heavy water, and refining of metals, particularly copper Used in research and quality control laboratories |