p-Dichlorobenzene
Burr Oak
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 | 6 | 0 | ND |
| 2019 | ND | 5 | 0 | ND |
| 2020 | ND | 4 | 0 | ND |
| 2021 | ND | 9 | 0 | ND |
| 2022 | ND | 12 | 0 | ND |
| 2023 | ND | 13 | 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 |
|---|---|---|
| 2018-03-08 | LLH69426 | ND |
| 2018-05-30 | LLH82924 | ND |
| 2018-08-27 | LLI01494 | ND |
| 2018-11-19 | LLI15976 | ND |
| 2018-11-19 | LLI15978 | ND |
| 2018-11-19 | LLI15977 | ND |
| 2019-03-07 | LLI28317 | ND |
| 2019-06-27 | LLI46828 | ND |
| 2019-07-24 | LLI52063 | ND |
| 2019-10-10 | LLI70511 | ND |
| 2019-12-27 | LLI86075 | ND |
| 2020-01-13 | ND | |
| 2020-04-09 | ND | |
| 2020-07-20 | ND | |
| 2020-10-13 | ND | |
| 2021-01-27 | ND | |
| 2021-06-24 | ND | |
| 2021-06-24 | ND | |
| 2021-06-24 | ND | |
| 2021-09-28 | ND | |
| 2021-09-28 | ND | |
| 2021-10-13 | ND | |
| 2021-10-13 | ND | |
| 2021-10-13 | ND | |
| 2022-01-19 | ND | |
| 2022-01-19 | ND | |
| 2022-01-19 | ND | |
| 2022-06-08 | ND | |
| 2022-06-08 | ND | |
| 2022-06-08 | ND | |
| 2022-09-01 | ND | |
| 2022-09-01 | ND | |
| 2022-09-01 | ND | |
| 2022-10-19 | ND | |
| 2022-10-19 | ND | |
| 2022-10-19 | ND | |
| 2023-03-16 | ND | |
| 2023-03-16 | ND | |
| 2023-03-16 | ND | |
| 2023-05-10 | ND | |
| 2023-05-10 | ND | |
| 2023-05-10 | ND | |
| 2023-09-14 | ND | |
| 2023-09-14 | ND | |
| 2023-09-25 | ND | |
| 2023-09-25 | ND | |
| 2023-10-19 | ND | |
| 2023-10-19 | ND | |
| 2023-10-19 | ND |