p-Dichlorobenzene
River Run S/d
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 | 2 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
| 2020 | ND | 2 | 0 | ND |
| 2021 | ND | 2 | 0 | ND |
| 2022 | ND | 2 | 0 | ND |
| 2023 | ND | 1 | 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 |
|---|---|---|
| 2018-04-19 | CB02658-01 | ND |
| 2018-07-16 | CB09180-01 | ND |
| 2019-04-30 | CC03139-01 | ND |
| 2019-07-30 | CC09260-01 | ND |
| 2020-04-27 | CD02849-01 | ND |
| 2020-07-29 | CD08830-01 | ND |
| 2021-06-03 | CE02375-01 | ND |
| 2021-08-06 | CE07105-01 | ND |
| 2022-05-05 | CF03515-01 | ND |
| 2022-08-18 | CF09401-01 | ND |
| 2023-05-22 | 752-7477-1 | ND |