Groundwater is crutial to millions of Americans as well as many more worldwide. I received a letter from my local water company stating that it was in violation of maximum contaminant levels for total trihalomethanes, however my 6 year old daughter has had 3 kidney infections in less than 2 months time.

The main THMs present in drinking water that is disinfected with chlorine are: 1. In 1974 trihalomethanes (chloroform, bromodichloromethane, dibromochloromethane, and bromoform) were discovered to be formed during the disinfection step of drinking water if free chlorine was the disinfectant. Thus, having reliably clean groundwater is of concern for many throughout the world. Trihalomethanes (THMs) are formed by the reaction of reactive chlorine species, such as hypochlorous acid, with naturally occurring organic matter. This work aimed to study THM formation during a unique case study of managed aquifer recharge (MAR) with chlorinated desalinated seawater. Many trihalomethanes find uses in industry as solvents or refrigerants.THMs are also environmental pollutants, and many are considered carcinogenic.Trihalomethanes with all the same halogen atoms are called haloforms.

THMs last for a long time in groundwater but vaporize quickly from surface waters. The state groundwater standard for chloroform is 6 parts per billion (ppb). They are colorless, and will evaporate out of the water into the air.

Chlorine has been added to drinking water to get rid of harmful micro-organisms since the early 1900s. Trihalomethanes (THMs) are formed by the reaction of reactive chlorine species, such as hypochlorous acid, with naturally occurring organic matter. THM formation was tested in the field, along a 3.0 m deep vadose zone gallery.

They do not build up in fish or in plants. Multiple lines of evidence for indicating factors associated with the sources, transport, and fate of chloroform and three other trihalomethanes (THMs) in untreated groundwater were revealed by evaluating low-level analytical results and logistic regression results for THMs.

Chloroform (CHCI) – also known as methane trichloride, methyl trichloride, or trichloromethane. fuel tanks, and relative concentrations of trihalomethanes in groundwater samples from U.S. Geological Survey grid and understanding sites (2010) and from California Division of Drinking Water sites (April 1, 2007–April 1, 2010) for two study areas of the California Groundwater Ambient Monitoring and Assessment Priority Basin
THMs break down slowly in the air. Chloroform has been detected in Minnesota groundwater, surface water, and drinking water.

Samples of untreated groundwater from wells used for drinking water were collected from 1996-2007 from 2492 wells … Trihalomethanes (THMs) are toxic disinfection by-products, formed in the reaction of chlorine with organic matter.
TRIHALOMETHANES (TTHMs or THMs) are chemical compounds in which three of the four hydrogen atoms of methane (CH4) are replaced by halogen atoms. Trihalomethanes (THMs) are chemical compounds in which three of the four hydrogen atoms of methane (CH 4) are replaced by halogen atoms.

Why is chlorine added to drinking water? THMs last for a long time in groundwater but vaporize quickly from surface waters.

Total trihalomethanes (TTHM) are a group of disinfection byproducts that form when chlorine compounds that are used to disinfect water react with other naturally occurring chemicals in the water. Today, the trihalomethane or chloroform is the most common in the majority of the water systems. Chloroform and Drinking Water Summary Chloroform (also called trichloro methane) is a chemical used to make other chemicals and a byproduct of chlorinating water.


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