Know Your Environment. Protect Your Health.

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

Pratt, 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.

 

21

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019N/A00N/A
2020ND100ND
2021ND10ND
2022N/A00N/A
2023ND100ND

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
2020-08-041472561ND
2020-08-041472572ND
2020-08-041472571ND
2020-08-041472570ND
2020-08-041472569ND
2020-08-041472567ND
2020-08-041472566ND
2020-08-041472565ND
2020-08-041472562ND
2020-08-041472564ND
2021-04-131817297ND
2023-08-092555388ND
2023-08-092555387ND
2023-08-092555386ND
2023-08-092555385ND
2023-08-092555384ND
2023-08-092555383ND
2023-08-092555382ND
2023-08-092555381ND
2023-09-132575317ND
2023-10-102589869ND