Know Your Environment. Protect Your Health.

p-Dichlorobenzene

Guilford 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.

 

20

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019ND10ND
2020ND30ND
2021ND50ND
2022ND10ND
2023ND70ND

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
2018-05-29(104)ND
2018-09-04(104)ND
2018-12-11(104)ND
2019-03-05(104)ND
2020-11-0223491224.00ND
2020-11-0223491203.00ND
2020-11-0223491182.00ND
2021-03-0924197195.00ND
2021-03-0924197216.00ND
2021-03-2924197238.00ND
2021-03-2924197259.00ND
2021-11-0425719752.00ND
2022-04-2526601193.00ND
2023-05-1729053143.00ND
2023-05-1729053164.00ND
2023-05-2429053214.00ND
2023-05-2429053193.00ND
2023-08-0129447930.00ND
2023-08-0129447950.00ND
2023-08-0129447910.00ND