Know Your Environment. Protect Your Health.

Dibromochloromethane

Bayou Liberty Water Association

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.

 

16

Samples

0

Samples exceeding legal limit (MCL)

12

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
20190.955 ppb440.710 ppb - 1.20 ppb
20201.04 ppb220.780 ppb - 1.30 ppb
20211.05 ppb220.690 ppb - 1.40 ppb
20221.28 ppb220.960 ppb - 1.60 ppb
20230.615 ppb220.560 ppb - 0.670 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.1 ppb

The EWG Health Guideline of 0.1 ppb for dibromochloromethane was based on the California Office of Environmental Health Hazard Assessment's public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer and harm to fetal growth and development.

ppb = parts per billion

All test results

Date Lab ID Result
2018-08-1035410499001ND
2018-08-1035410499001ND
2018-11-0235428200001ND
2018-11-0235428200001ND
2019-08-19354917210010.710 ppb
2019-08-19354917210010.710 ppb
2019-11-08355110680011.20 ppb
2019-11-08355110680011.20 ppb
2020-08-14355709970010.780 ppb
2020-11-06355905180011.30 ppb
2021-08-05356537120010.690 ppb
2021-11-05356763310011.40 ppb
2022-08-11357387450010.960 ppb
2022-11-07357587270011.60 ppb
2023-08-03358182290010.560 ppb
2023-11-01358393440010.670 ppb