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EWG's Tap Water Database — 2021 UPDATE

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Dibromochloromethane

Illinois American-Pontiac

Dibromochloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Dibromochloromethane and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

MORE ABOUT THIS CONTAMINANT

 

56

Samples

0

Samples exceeding legal limit (MCL)

4

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND160ND
2015ND80ND
2016ND80ND
20170.625 ppb82ND - 2.60 ppb
20180.263 ppb82ND - 1.10 ppb
2019ND80ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.1 ppb

The EWG Health Guideline of 0.1 ppb for dibromochloromethane was proposed in 2018 by the California Office of Environmental Health Hazard Assessment as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.

ppb = parts per billion

All test results

Date Lab ID Result
2014-01-2724382601ND
2014-01-2724382701ND
2014-01-2724382901ND
2014-01-2724382801ND
2014-04-2225169901ND
2014-04-2225170001ND
2014-04-2225170201ND
2014-04-2225170101ND
2014-07-2326360401ND
2014-07-2326360501ND
2014-07-2326360301ND
2014-07-2326360201ND
2014-10-2127174301ND
2014-10-2127174201ND
2014-10-2127174101ND
2014-10-2127174401ND
2015-01-2727921901ND
2015-01-2727922001ND
2015-04-2128601701ND
2015-04-2128601801ND
2015-07-2129625101ND
2015-07-2129625201ND
2015-10-2730395801ND
2015-10-2730395901ND
2016-01-1131032401ND
2016-01-1131032501ND
2016-04-1231719101ND
2016-04-1231719201ND
2016-07-1232625901ND
2016-07-1232626001ND
2016-10-1133582901ND
2016-10-1133583001ND
2017-01-1034213701ND
2017-01-1034213801ND
2017-04-1235215401ND
2017-04-1235215501ND
2017-07-1236365601ND
2017-07-1236365701ND
2017-10-10373036012.60 ppb
2017-10-10373035012.40 ppb
2018-01-10381257011.000 ppb
2018-01-10381256011.10 ppb
2018-04-1039118001ND
2018-04-1039118101ND
2018-07-1140367901ND
2018-07-1140368001ND
2018-10-0941340701ND
2018-10-0941340801ND
2019-01-0942580201ND
2019-01-0942580301ND
2019-04-1043823701ND
2019-04-1043823801ND
2019-07-1045120201ND
2019-07-1045120301ND
2019-10-0946666701ND
2019-10-0946666601ND