Did You Know - Hydrogen Sulfide

  • MDG
  • August 16, 2015

Hydrogen Sulfide

Between 2001 and 2010 the Bureau of Health and Labor Statistics reported 60 deaths due to hydrogen sulfide inhalation. At low concentrations, hydrogen sulfide has a “rotten egg odor”. At higher concentrations (20-30ppm), it paralyzes the respiratory center of the brain and olfactory nerve and can’t be smelled. Hydrogen Sulfide may be found in sewers, collection systems, confined spaces, and any other potential area where bacteria are food (BOD) are present in the absence of oxygen. Always work safely and follow proper confined space entry procedures.