Know Your Environment. Protect Your Health.

Bromodichloromethane

Hamburg Board of Public

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

 

14

Samples

0

Samples exceeding legal limit (MCL)

5

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20182.52 ppb222.29 ppb - 2.74 ppb
2019ND20ND
20200.255 ppb21ND - 0.510 ppb
2021ND40ND
2022ND20ND
20230.875 ppb220.860 ppb - 0.890 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.06 ppb

The EWG Health Guideline of 0.06 ppb for bromodichloromethane 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
2018-09-188090735-012.29 ppb
2018-09-188090735-022.74 ppb
2019-09-239091024-05ND
2019-09-239091024-06ND
2020-09-1520091620-005ND
2020-09-1520091620-0060.510 ppb
2021-06-1521061625-006ND
2021-06-1521061625-009ND
2021-09-13210916014-001ND
2021-09-21210923005-001ND
2022-09-19220922006-002ND
2022-09-19220922006-001ND
2023-09-27230928001-0010.860 ppb
2023-09-27230928001-0020.890 ppb