p-Dichlorobenzene
Ostrander
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 | N/A | 0 | 0 | N/A |
| 2019 | ND | 4 | 0 | ND |
| 2020 | ND | 2 | 0 | ND |
| 2021 | ND | 3 | 0 | ND |
| 2022 | ND | 2 | 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 |
|---|---|---|
| 2019-03-06 | 19C0291-02 | ND |
| 2019-06-04 | 19F0219-01 | ND |
| 2019-08-28 | 19H2523-01 | ND |
| 2019-10-24 | 19J1453-01 | ND |
| 2020-06-30 | 20G0010-01 | ND |
| 2020-10-28 | 20J1696-01 | ND |
| 2021-02-03 | 21B0364-01 | ND |
| 2021-04-27 | 21D1863-01 | ND |
| 2021-10-25 | 21J1333-02 | ND |
| 2022-03-07 | 22C0358-01 | ND |
| 2022-05-04 | 22E0327-01 | ND |
| 2023-05-23 | 23E2594-01 | ND |
| 2023-11-28 | 23K1283-01 | ND |