Know Your Environment. Protect Your Health.

Dibromochloromethane

Flora

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.

 

48

Samples

0

Samples exceeding legal limit (MCL)

41

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.491 ppb86ND - 0.807 ppb
20190.695 ppb86ND - 1.21 ppb
20200.706 ppb86ND - 1.24 ppb
20211.02 ppb880.646 ppb - 1.45 ppb
20220.900 ppb87ND - 1.19 ppb
20231.22 ppb880.821 ppb - 1.81 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
2018-02-068020977-010.654 ppb
2018-02-068020977-020.638 ppb
2018-05-088051830-01ND
2018-05-088051830-02ND
2018-08-078081518-010.807 ppb
2018-08-078081518-020.763 ppb
2018-11-068111189-020.543 ppb
2018-11-068111189-010.525 ppb
2019-02-059020916-02ND
2019-02-059020916-01ND
2019-05-079051776-010.704 ppb
2019-05-079051776-020.694 ppb
2019-08-069081442-021.14 ppb
2019-08-069081442-011.21 ppb
2019-11-059110877-020.934 ppb
2019-11-059110877-010.881 ppb
2020-02-040020887-02ND
2020-02-040020887-01ND
2020-05-050050918-011.16 ppb
2020-05-050050918-021.24 ppb
2020-08-100082258-020.845 ppb
2020-08-100082258-010.886 ppb
2020-11-090111966-020.718 ppb
2020-11-090111966-010.798 ppb
2021-02-02EB00729-020.971 ppb
2021-02-02EB00729-010.966 ppb
2021-05-04EE00743-011.45 ppb
2021-05-04EE00743-021.34 ppb
2021-08-03EH00990-010.996 ppb
2021-08-03EH00990-020.973 ppb
2021-11-02EK00743-010.815 ppb
2021-11-02EK00743-020.646 ppb
2022-02-08FB01595-021.08 ppb
2022-02-08FB01595-011.04 ppb
2022-05-03FE00785-010.939 ppb
2022-05-03FE00785-02ND
2022-08-09FH02273-010.885 ppb
2022-08-09FH02273-020.927 ppb
2022-11-01FK00575-011.14 ppb
2022-11-01FK00575-021.19 ppb
2023-02-01GB00384-010.904 ppb
2023-02-01GB00384-020.821 ppb
2023-05-02GE00684-010.948 ppb
2023-05-02GE00684-020.846 ppb
2023-08-02GH00861-011.34 ppb
2023-08-02GH00861-021.39 ppb
2023-11-01GK00424-011.67 ppb
2023-11-01GK00424-021.81 ppb