Know Your Environment. Protect Your Health.

Dibromochloromethane

City of Iraan

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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

2

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.685 ppb21ND - 1.37 ppb
2019ND20ND
2020ND20ND
2021ND20ND
20220.560 ppb21ND - 1.12 ppb
2023ND20ND

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
2018-07-19Q1828954001ND
2018-07-19Q18289540091.37 ppb
2019-07-25Q1947676001ND
2019-07-25Q1947676004ND
2020-06-23Q2025198001ND
2020-06-23Q2025198005ND
2021-05-18Q2112884003ND
2021-05-18Q2112884009ND
2022-08-29Q2225654001ND
2022-08-29Q22256540051.12 ppb
2023-06-13Q2322477001ND
2023-06-13Q2322477004ND