Hydrogen sulfide, or H2S, is a colorless and highly flammable gas produced in industries such as mining, oil and gas refining, and paper and pulp processing. Bureau of Labor Statistics indicate H2S caused 60 worker deaths between 2001 and 2010. The effects on workers' health depend on how much of the gas workers breathe but symptoms can range from headaches, nausea and fatigue to respiratory tract irritation, unconsciousness and death. The Web page explains how training and the use of exhaust/ventilation systems and personal protective equipment can protect workers from harmful H2S exposure.
