Coal bed methane is a form of natural gas extracted from coal beds. In recent decades it has become an important source of energy in United States, Canada, and other countries. The term refers to methane adsorbed into the solid matrix of the coal. It is called sweet gas because of its lack of hydrogen sulfide. The presence of this gas is well known from its occurrence in underground coal mining, where it presents a serious safety risk for miners. Water from coal-bed natural gas production may contain sodium bicarbonate at concentrations that can harm aquatic life, according to a new study by the U.S. Geological Survey and US EPA. An increase in the production of coal-bed natural gas has occurred throughout the nation. The results of this aquatic study may help resource managers achieve a balance between beneficial use of water resources (such as irrigation) and the protection of aquatic life throughout the nation and abroad. The study area included the Tongue and Powder Rivers in Montana and Wyoming, where several types of experiments and assessments were used for 13 aquatic species.

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Coal Bed Methane Aquatic Influences

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