Know Your Environment. Protect Your Health.

Dibromochloromethane

Columbus, City of

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.

 

6

Samples

0

Samples exceeding legal limit (MCL)

5

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.850 ppb110.850 ppb
20190.740 ppb110.740 ppb
20200.930 ppb110.930 ppb
2021ND10ND
20220.660 ppb110.660 ppb
20230.960 ppb110.960 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
2018-08-2018-S17250.850 ppb
2019-08-2619-S18370.740 ppb
2020-08-113701690.930 ppb
2021-08-09384208ND
2022-08-083995120.660 ppb
2023-08-184159450.960 ppb