p-Dichlorobenzene
Aqua Pa West Chester
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.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | ND | 3 | 0 | ND |
| 2019 | ND | 4 | 0 | ND |
| 2020 | ND | 3 | 0 | ND |
| 2021 | ND | 3 | 0 | ND |
| 2022 | ND | 3 | 0 | ND |
| 2023 | ND | 2 | 0 | ND |
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 |
|---|---|---|
| 2018-01-29 | AF74444 | ND |
| 2018-02-22 | AF77012 | ND |
| 2018-03-22 | AF78070 | ND |
| 2019-03-06 | AG10280 | ND |
| 2019-03-06 | AG10262 | ND |
| 2019-03-06 | AG10272 | ND |
| 2019-03-07 | AG10725 | ND |
| 2020-03-10 | 21839021.00 | ND |
| 2020-03-11 | 21839000.00 | ND |
| 2020-04-02 | 22014456.00 | ND |
| 2021-02-10 | 23881859.00 | ND |
| 2021-02-10 | 23881880.00 | ND |
| 2021-02-10 | 23881901.00 | ND |
| 2022-01-28 | 25934691.00 | ND |
| 2022-02-24 | 26110779.00 | ND |
| 2022-03-28 | 26280756.00 | ND |
| 2023-03-23 | 28514068.00 | ND |
| 2023-03-28 | 28514089.00 | ND |