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EWG's Tap Water Database — 2021 UPDATE

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Dibromochloromethane

US Air Force Academy

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)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014N/A00N/A
2015ND40ND
2016ND120ND
2017ND120ND
2018ND120ND
2019ND160ND

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 Result
2015-05-29ND
2015-05-29ND
2015-05-29ND
2015-05-29ND
2016-05-24ND
2016-05-24ND
2016-05-24ND
2016-05-24ND
2016-08-24ND
2016-08-24ND
2016-08-24ND
2016-08-24ND
2016-11-28ND
2016-11-28ND
2016-11-28ND
2016-11-28ND
2017-02-23ND
2017-02-23ND
2017-02-23ND
2017-02-23ND
2017-05-25ND
2017-05-25ND
2017-05-25ND
2017-05-25ND
2017-08-21ND
2017-08-21ND
2017-08-21ND
2017-08-21ND
2018-02-15ND
2018-02-15ND
2018-02-15ND
2018-02-15ND
2018-05-14ND
2018-05-14ND
2018-05-14ND
2018-05-14ND
2018-08-16ND
2018-08-16ND
2018-08-16ND
2018-08-16ND
2019-02-12ND
2019-02-12ND
2019-02-12ND
2019-02-12ND
2019-05-29ND
2019-05-29ND
2019-05-29ND
2019-05-29ND
2019-08-28ND
2019-08-28ND
2019-08-28ND
2019-08-28ND
2019-11-20ND
2019-11-20ND
2019-11-20ND
2019-11-20ND