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EWG's Tap Water Database — 2019 UPDATE

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p-Dichlorobenzene

Symonds Water Association

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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND40ND
2013ND40ND
2014ND10ND
2015ND10ND
20161.85 ppb111.85 ppb
2017ND10ND

ppb = parts per billion

State and national drinking water standards and health guidelines

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
2012-01-17120118-005VOND
2012-04-09120410-031VOND
2012-08-15120816-009VOND
2012-10-08121009-011VOND
2013-01-23130124-011VOND
2013-04-08130409-011VOND
2013-07-09130710-010VOND
2013-10-15131017-002VOND
2014-06-02140603-012VOND
2015-06-18150619-002VOND
2016-12-19161220-047VO1.85 ppb
2017-06-21170622-012VOND