Know Your Environment. Protect Your Health.

p-Dichlorobenzene

Monona Waterworks

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.

 

17

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND20ND
2020ND10ND
2021ND50ND
2022ND30ND
2023ND40ND

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
2018-07-11393604001ND
2018-09-25410134001ND
2019-04-24442084001ND
2019-09-05467810001ND
2020-07-20515426001ND
2021-02-11547362001ND
2021-02-11547362002ND
2021-02-11547362001ND
2021-02-11547362002ND
2021-09-17584334001ND
2022-03-22610616001ND
2022-03-23610869001ND
2022-09-13642092001ND
2023-03-17668942001ND
2023-03-21669257001ND
2023-03-21669257002ND
2023-07-11687958001ND