Trihalomethanes

On Tap Spring 19by Babu Srinivas Madabhushi NDWC Technical Assistance Specialist The use of chlorine to disinfect water pro - duces various disinfection byproducts, which. Trihalomethanes (THM) are a group of four chemicals that are formed along with other disinfection by products when chlorine or other disinfectants used to control microbial contaminants in drinking water react with naturally occurring organic and inorganic matter in water. Trihalomethane definition is - any of various derivatives CHXof methane (such as chloroform) that have three halogen atoms per molecule and are formed especially during the chlorination of drinking water.

Any of several chemical compounds in which halogen atoms replace three of the hydrogen atoms normally present in a methane molecule. Studies with lab animals have shown increased cancers at high doses, but such studies cannot always be extrapolated to humans. In fact, in December 200 the U.S. These toxic compounds can occur in chlorinated water as a result of reaction between organic materials in the water and chlorine added as a disinfectant. Health Risk of the Trihalomethanes Found in Drinking Water Carcinogenic Activity and Interactions EPA Grant Number: R8253Title: Health Risk of the Trihalomethanes Found in Drinking Water Carcinogenic Activity and Interactions.

Environmental Protection Agency lowered the maximum allowable annual average level for large surface water public water systems from 1parts per billion (ppb) to ppb. Org High levels of trihalomethanes can be dangerous.

Many trihalomethanes find uses in industry as solvents or refrigerants. The health effects of trihalomethanes are controversial within the scientific community. Trihalomethanes (THMs) are chemical compounds in which three of the four hydrogen atoms of methane (CH 4) are replaced by halogen atoms. (EYT) Starting operations out of a garage in 198 Lutons Plumbing and Heating and Air Conditioning has grown to the point now where it services Clarion, Venango, Jefferson, and Armstrong counties.

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