| acute toxicity of sodium bicarbonate, a major component of coal bed natural gas produced waters, to 13 aquatic species as defined in the laboratory. | water produced during coal bed natural gas (cbng) extraction in the powder river structural basin of wyoming and montana (usa) may contain concentrations of sodium bicarbonate (nahco3) of more than 3000 mg/l. the authors evaluated the acute toxicity of nahco3, also expressed as bicarbonate (hco3(-)), to 13 aquatic organisms. of the 13 species tested, 7 had a median lethal concentration (lc50) less than 2000 mg/l nahco3, or 1300 mg/l hco3(-). the most sensitive species were ceriodaphnia dubia, fr ... | 2014 | 24504922 |