Environmental Health - Toxic Substances
Methanogenesis - "Bacterial conversion of methanogenic substrates [acetate, formate, hydrogen, carbon dioxide] into methane and carbon dioxide." - Leverenz and others, 2002
Methanogenesis - "The production of methane by bacteria. Because they thrive without oxygen, methanogenic bacteria have an important role in the subsurface, where oxygen is often absent." - National Research Council, 1994
Methanogen - "A microorganism that produces methane. Because they can thrive without oxygen, methanogens can be important players in subsurface biotransformations, where oxygen is often absent." - National Research Council, 1993
Methanogen - "An organism carrying out methanogenesis, requiring completely anaerobic conditions for growth, considered by some authorities to be distinct from bacteria." - Parker, 1994
Methanogenic - "Referring to the formation of methane by certain anaerobic bacteria during the process of anaerobic fermentation." - U.S. Environmental Protection Agency, 2009
Text in brackets ("[text]") are additions by the editor.
USGS Information on Biodegradation
Other Information on Biodegradation
Leverenz, H., Tchobanoglous, G., and Darby, J.L., 2002, Review of technologies for the onsite treatment of wastewater in California: University of California Davis, Center for Environmental and Water Resources Engineering 02-2.
National Research Council, 1993, In situ bioremediation--When does it work?: Washington, D.C., National Academies Press, 224 p.
National Research Council, 1994, Alternatives for ground water cleanup: Washington, D.C., National Academies Press, 315 p.
Parker, S.P., 1994, Dictionary of scientific and technical terms: McGraw-Hill, 2200 p.
U.S. Environmental Protection Agency, 2009, Glossary of technical terms: U.S. Environmental Protection Agency, access date June 7, 2011.
Disclaimer: The definitions on this page are provided for information purposes only, and do not indicate endorment by the U.S. Geological Survey.