Know Your Environment. Protect Your Health.

p-Dichlorobenzene

Quint-mar Water Authority

p-Dichlorobenzene is a carcinogenic insecticide used in mothballs, and added to deodorant blocks made for trash cans and toilets. Long-term exposure can cause liver damage and kidney problems.

 

14

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
2019ND60ND
2020ND10ND
2021N/A00N/A
2022ND70ND
2023N/A00N/A

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 6 ppb

The EWG Health Guideline of 6 ppb for p-dichlorobenzene 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): 75 ppb

The legal limit for p-dichlorobenzene, established in 1987, was based on toxicity studies conducted in laboratory animals in the 1980s. This limit may not fully protect against the risk of cancer due to p-dichlorobenzene exposure.

ppb = parts per billion

All test results

Date Lab ID Result
2019-02-05AB32814ND
2019-02-05AB32815ND
2019-02-05AB32816ND
2019-02-05AB32817ND
2019-02-05AB32818ND
2019-04-17AB34289ND
2020-07-20AB43480ND
2022-07-20AB60412ND
2022-07-20AB60413ND
2022-07-20AB60414ND
2022-07-20AB60415ND
2022-07-20AB60416ND
2022-07-20AB60417ND
2022-07-20AB60418ND