RT Report
T1 Hydrogen Sulfide: Environmental Health Criteria 19
A1 United Nations Environment Programme, 
A1 World Health Organization, 
A1 International Labour Organisation, 
K1 hydrogen
K1 environmental health
K1 chemical analysis
K1 chemical
K1 public health
SN 92 4 154079 6
YR 1981
FD 1981
LK https://wedocs.unep.org/handle/20.500.11822/29305
UL https://wedocs.unep.org/handle/20.500.11822/29305
NO Hydrogen sulfide is a colourless gas with a characteristic odour that is soluble in various liquids including water, alcohol, ether, and solutions of amines, alkali carbonates, and bicarbonates. It can undergo a number of oxidation reactions to yield principal products consisting of sulfur dioxide, sulfuric acid, or elemental sulfur. Reaction rates and oxidation products depend on the nature of the oxidizing agent. Hydrogen sulfide is one of the principal compounds involved in the natural cycle of sulfur in the environment. It occurs in volcanic gases and is produced by bacterial action during the decay of both plant and animal protein. It can also be produced by bacteria through the direct reduction of sulfate. Significant concentrations of hydrogen sulfide occur in some natural gas fields and in geothermally active areas.
DS UN Environment Document Repository
RD Sep 19, 2026