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4.1.2.g. Hydrogen sulphide
Unit 4 - Water and soil quality management
4.1.2.g. Hydrogen sulphide
- Hydrogen sulphide is generated by certain heterotrophic bacteria under anaerobic conditions.
- The distribution of hydrogen sulphide and other sulfur species is regulated by water pH.
- The un-ionized form accounts for about 99% of the total sulfide. As the value of pH rises, the percent of hydrogen sulfide decreases.
- Un-ionized hydrogen sulfide is toxic to fish and invertebrates at low concentrations. Therefore, detectable concentrations should be considered as hazardous.
Last modified: Tuesday, 19 July 2011, 11:06 AM