trihalomethane

(redirected from Dibromochloromethane)
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trihalomethane

(trī′hăl-ə-mĕth′ān′)
n.
Any of several chemical compounds in which halogen atoms replace three of the hydrogen atoms normally present in a methane molecule. 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.
References in periodicals archive ?
We collected routine THM measurements (chloroform, bromodichloromethane, dibromochloromethane, and bromoform) and historical information on water sources (surface/ground proportion) and treatment in the drinking water supplied to the study areas back to 1940 through a structured questionnaire aimed at water utilities and local and health authorities.
7 psi) with an isothermal temperature of 45[degrees]C for bromoform, bromodichloromethane, and dibromochloromethane and for chloroform a temperature program of 45[degrees]C for 2.
The four THMs are chloroform, bromoform, bromodichloromethane, and dibromochloromethane.
The authors report that concentrations of ETHM [sum of chloroform (TCM), bromodichloromethane (BDCM), dibromochloromethane (DBCM), and bromoform (TBM)] in both blood and water varied by site and season.
RESULTS: Blood [summation over (term)]THM [sum of chloroform (TCM), bromodichloromethane (BDCM), dibromochloromethane (DBCM), and bromoform (TBM)1 concentrations varied by site and season.
Trihalomethanes (THMs) are the DBPs found generally at the highest concentrations, and the most common THMs are chloroform, bromodichloromethane, dibromochloromethane, and bromoform.
The most common THMs are chloroform, brornodichloromethane, dibromochloromethane, and broomcorn.
Chloroform, bromodichloromethane, dibromochloromethane, and bromoform were determined through an automatic thermal desorption unit (ATD 400; Perkin-Elmer, Madrid, Spain) coupled to a GC-electron capture detector (Perkin-Elmer).
The four THMs--chloroform, bromodichloromethane, dibromochloromethane, and bromoform--were measured in exhaled breath before swimmers entered the swimming pool (80 min before swimming) and just after they swam (5 min after leaving the pool) (Figure 1), as markers of individual exposure to DBPs.
measured levels of the four THMs [chloroform, bromodichloro-methane (BDCM), dibromochloromethane, and bromoform] in 113 tap water samples from the studied geographic areas between September and December 1999.
EPA 1995) and consisted of chloroform, bromoform, bromodichloromethane, and dibromochloromethane.