Know Your Environment. Protect Your Health.

1,2-Dichloropropane

City of Blythe

1,2-Dichloropropane is a volatile carcinogenic solvent discharged from chemical factories and landfills. It also contaminates farmland due to its former use as a soil fumigant. Read More.

The insecticide and fumigant uses of 1,2-dichloropropane were discontinued in the 1980s, but it is still used as an industrial solvent. The California public health goal of 0.5 parts per billion, set to protect against cancer, is 10 times lower than the amount allowed by the federal government, which is a Maximum Contaminant Level of 5 parts per billion. 1,2-Dichloropropane can also damage the nervous system, liver, kidneys, and digestive and respiratory systems.

Click here to read more about carcinogenic VOCs.

 

10

Samples

0

Samples exceeding legal limit (MCL)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019ND40ND
2020ND10ND
2021N/A00N/A
2022ND40ND
20230.640 ppb110.640 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.5 ppb

The EWG Health Guideline of 0.5 ppb for 1,2-dichloropropane 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): 5 ppb

The legal limit for 1,2-dichloropropane, established in 1991, was based on analytical detection limits at the time that the standard was set. This limit may not fully protect against the risk of cancer.

ppb = parts per billion

All test results

Date Lab ID Result
2019-11-20CA3310003_030_030-201911201315ND
2019-11-20CA3310003_015_015-201911201300ND
2019-11-20CA3310003_031_031-201911201400ND
2019-12-17CA3310003_010_010-201912171330ND
2020-12-28CA3310003_006_006-202012280600ND
2022-11-02CA3310003_031_031-202211020730ND
2022-11-02CA3310003_030_030-202211020700ND
2022-12-12CA3310003_006_006-202212120800ND
2022-12-21CA3310003_010_010-202212210930ND
2023-12-19CA3310003_015_015-2023121907000.640 ppb