![]() Hydrogen sulfide emissions are thought to arise from the sanitary system (Hagar 2008). ![]() Whether the reported concentrations are representative of the submarine fleet is not known few details were provided about the conditions on the submarines when the samples were taken. Data collected on three nuclear-powered attack submarines indicate a range of 2-22 ppb (Hagar 2008). ![]() Hydrogen sulfide has been measured in the submarine atmosphere. The ambient air concentration resulting from natural sources is estimated as 0.11-0.33 ppb ( ATSDR 2006). Hydrogen sulfide is a byproduct of many industrial processes and is used to make inorganic sulfides that are used to make such products as dyes, pesticides, polymers, and pharmaceuticals (Weil et al. It arises from bacterial reduction of sulfates and decomposition of proteins. Hydrogen sulfide is a component of the natural sulfur cycle and is produced endogenously in mammals (Weil et al.
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