p-Dichlorobenzene
Perkasie Regional 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.
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 | 7 | 0 | ND |
| 2019 | ND | 7 | 0 | ND |
| 2020 | ND | 6 | 0 | ND |
| 2021 | ND | 7 | 0 | ND |
| 2022 | ND | 7 | 0 | ND |
| 2023 | ND | 7 | 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 |
|---|---|---|
| 2018-03-06 | 8024485-02 | ND |
| 2018-06-04 | 8052857-02 | ND |
| 2018-09-04 | 8084662-02 | ND |
| 2018-09-17 | 8093548-01 | ND |
| 2018-09-17 | 8093548-03 | ND |
| 2018-09-17 | 8093548-02 | ND |
| 2018-12-03 | 8110453-02RE | ND |
| 2019-03-05 | 9023322-02 | ND |
| 2019-06-04 | 9053891-02 | ND |
| 2019-09-03 | 9084135-02 | ND |
| 2019-11-11 | 9111441-02 | ND |
| 2019-11-11 | 9111441-03 | ND |
| 2019-11-11 | 9111441-01 | ND |
| 2019-12-03 | 9113323-02 | ND |
| 2020-03-03 | 21828160.00 | ND |
| 2020-06-23 | 22393763.00 | ND |
| 2020-09-01 | 22778497.00 | ND |
| 2020-09-01 | 22778455.00 | ND |
| 2020-09-01 | 22778476.00 | ND |
| 2020-12-01 | 23344555.00 | ND |
| 2021-03-02 | 24041337.00 | ND |
| 2021-06-01 | 24619517.00 | ND |
| 2021-09-20 | 25201401.00 | ND |
| 2021-09-20 | 25201443.00 | ND |
| 2021-09-20 | 25201422.00 | ND |
| 2021-09-20 | 25201464.00 | ND |
| 2021-12-07 | 25746106.00 | ND |
| 2022-03-01 | 26270335.00 | ND |
| 2022-06-21 | 26824207.00 | ND |
| 2022-08-16 | 27213699.00 | ND |
| 2022-08-16 | 27213747.00 | ND |
| 2022-08-16 | 27213724.00 | ND |
| 2022-09-19 | 27420624.00 | ND |
| 2022-12-06 | 27980836.00 | ND |
| 2023-03-07 | 28503188.00 | ND |
| 2023-06-06 | 29088296.00 | ND |
| 2023-09-05 | 29681625.00 | ND |
| 2023-09-19 | 29681628.00 | ND |
| 2023-09-19 | 29681627.00 | ND |
| 2023-09-19 | 29681626.00 | ND |
| 2023-12-05 | 30228254.00 | ND |