Know Your Environment. Protect Your Health.

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

Joshua Basin Water District

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.

 

13

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019ND20ND
2020ND40ND
2021N/A00N/A
2022N/A00N/A
2023ND40ND

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
2018-05-10CA3610025_008_008-201805100600ND
2018-07-09CA3610025_DST_602-201807090950ND
2018-07-09CA3610025_DST_601-201807091100ND
2019-02-20CA3610025_010_010-201902200640ND
2019-02-20CA3610025_011_011-201902200700ND
2020-05-05CA3610025_005_005-202005050815ND
2020-05-06CA3610025_010_010-202005060800ND
2020-05-06CA3610025_009_009-202005060845ND
2020-05-12CA3610025_011_011-202005120800ND
2023-08-30CA3610025_005_005-202308301000ND
2023-08-30CA3610025_011_011-202308300739ND
2023-08-30CA3610025_009_009-202308300830ND
2023-08-30CA3610025_010_010-202308300707ND