p-Dichlorobenzene
Aqua Pa Bristol
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 | 3 | 0 | ND |
| 2020 | ND | 5 | 0 | ND |
| 2021 | ND | 5 | 0 | ND |
| 2022 | ND | 6 | 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 |
|---|---|---|
| 2018-02-02 | AF75113 | ND |
| 2018-02-22 | AF76987 | ND |
| 2019-02-01 | AG07157 | ND |
| 2019-03-07 | AG10696 | ND |
| 2019-04-12 | AG14108 | ND |
| 2020-01-10 | 21483480.00 | ND |
| 2020-04-03 | 22002017.00 | ND |
| 2020-04-09 | 22002038.00 | ND |
| 2020-07-10 | 22586037.00 | ND |
| 2020-10-23 | 23162722.00 | ND |
| 2021-01-15 | 23692351.00 | ND |
| 2021-02-05 | 23869125.00 | ND |
| 2021-05-14 | 24417532.00 | ND |
| 2021-07-09 | 24807873.00 | ND |
| 2021-10-08 | 25383925.00 | ND |
| 2022-01-14 | 25922409.00 | ND |
| 2022-02-03 | 26099337.00 | ND |
| 2022-04-01 | 26443308.00 | ND |
| 2022-04-08 | 26443287.00 | ND |
| 2022-07-08 | 27016774.00 | ND |
| 2022-11-08 | 27804053.00 | ND |
| 2023-01-27 | 28152913.00 | ND |
| 2023-02-16 | 28330624.00 | ND |