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Trihalomethanes were the subject of the first drinking water regulations issued after passage of the U.S. Safe Drinking Water Act in 1974. [ 5 ] The EPA limits the total concentration of the four chief constituents ( chloroform , bromoform , bromodichloromethane , and dibromochloromethane ), referred to as total trihalomethanes (TTHM), to 80 ...
Swimming pools using chlorine have been found to contain trihalomethanes, although generally they are below current EU standard for drinking water (100 micrograms per litre). [4] Concentrations of trihalomethanes (mainly chloroform ) of up to 0.43 ppm have been measured. [ 5 ]
Chloroform, [10] or trichloromethane (often abbreviated as TCM), is an organochloride with the formula C H Cl 3 and a common solvent.It is a volatile, colorless, sweet-smelling, dense liquid produced on a large scale as a precursor to refrigerants and PTFE. [11]
NEW YORK (Reuters) -A U.S. judge clarified on Tuesday that an order restricting billionaire Elon Musk's government cost-cutting effort from accessing the Treasury Department's payment systems does ...
Bromodichloromethane is a trihalomethane with formula C H Br Cl 2.It is a colorless, nonflammable liquid which will dissolve in water, or evaporate in air. [1] Most of the chemical is produced through the chlorine disinfection process, [1] and as a result it can occur in municipally-treated drinking water. [2]
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Chloroform: Solvent CHCl 3: Trichlorofluoromethane: Freon-11, R-11 CFC-11 CCl 3 F: Dichlorodifluoromethane: Freon-12, R-12 CFC-12 CCl 2 F 2: Chlorotrifluoromethane: CFC-13 CClF 3: Chlorodifluoromethane: R-22 HCFC-22 CHClF 2: Trifluoromethane Fluoroform: HFC-23 In semiconductor industry, refrigerant CHF 3: Chlorofluoromethane: Freon 31 ...