Know Your Environment. Protect Your Health.

1,2-Dibromo-3-chloropropane (DBCP)

Warden City Of

1,2-Dibromo-3-chloropropane is a pesticide fumigant banned in the 1970s after scientists discovered it caused sterility in men who worked with it. The chemical causes cancer in laboratory animals and may cause cancer in people. Read More.

This pesticide breaks down very slowly in the environment. It remains in groundwater and drinking water wells in the agricultural areas where it was sprayed in the past. Men exposed to this pesticide in the fields suffered from infertility and testicular damage, and tended to have fewer male babies.

 

60

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019ND40ND
2020N/A00N/A
2021ND150ND
2022ND270ND
2023ND110ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.0017 ppb

The EWG Health Guideline of 0.0017 ppb for 1,2-dibromo-3-chloropropane was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer.

EPA Maximum Contaminant
Level (MCL): 0.2 ppb

The legal limit for 1,2-dibromo-3-chloropropane, established in 1991, was based on analytical detection limits at the time that the standard was set. This limit does not fully protect against the risk of cancer due to 1,2-dibromo-3-chloropropane exposure.

ppb = parts per billion

All test results

Date Lab ID Result
2018-04-10ND
2018-07-25ND
2018-10-31ND
2019-04-08ND
2019-06-11ND
2019-10-03ND
2019-10-03ND
2021-03-294110003ND
2021-06-024160680ND
2021-06-094160681ND
2021-06-094160679ND
2021-07-204142956ND
2021-07-204142955ND
2021-08-124155458ND
2021-08-124155444ND
2021-08-254163943ND
2021-09-284239543ND
2021-09-284192256ND
2021-10-274194856ND
2021-10-274195106ND
2021-11-164207059ND
2021-11-164207058ND
2022-01-194226038ND
2022-01-194225650ND
2022-03-034254624ND
2022-03-034254624ND
2022-03-034254624ND
2022-03-294258887ND
2022-03-294258886ND
2022-04-284271384ND
2022-04-284271385ND
2022-05-174279774ND
2022-05-174279773ND
2022-06-204296679ND
2022-06-204296708ND
2022-07-134309267ND
2022-07-134309268ND
2022-07-134309266ND
2022-07-134309266ND
2022-08-094323285ND
2022-08-094323318ND
2022-09-134371330ND
2022-09-134371329ND
2022-10-114371337ND
2022-10-114357121ND
2022-11-084375168ND
2022-11-084375169ND
2022-12-064388215ND
2022-12-064388380ND
2023-01-184399152ND
2023-01-184399153ND
2023-02-214415389ND
2023-02-214415388ND
2023-03-154426894ND
2023-03-154426893ND
2023-04-114478121ND
2023-09-204524786ND
2023-09-204524785ND
2023-10-244539359ND
2023-10-244539358ND