p-Dichlorobenzene
Tempe Water Supply Corporation 1
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 | 4 | 0 | ND |
| 2019 | ND | 4 | 0 | ND |
| 2020 | ND | 4 | 0 | ND |
| 2021 | ND | 4 | 0 | ND |
| 2022 | ND | 4 | 0 | ND |
| 2023 | ND | 4 | 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 |
|---|---|---|
| 2018-02-13 | AE13556 | ND |
| 2018-02-13 | AE13592 | ND |
| 2018-02-13 | AE13596 | ND |
| 2018-02-13 | AE13554 | ND |
| 2019-02-26 | AE55992 | ND |
| 2019-02-26 | AE55996 | ND |
| 2019-02-26 | AE56002 | ND |
| 2019-02-26 | AE56004 | ND |
| 2020-02-12 | AE98142 | ND |
| 2020-02-12 | AE98144 | ND |
| 2020-02-12 | AE98146 | ND |
| 2020-02-12 | AE98190 | ND |
| 2021-01-27 | AF41351 | ND |
| 2021-01-27 | AF41361 | ND |
| 2021-01-27 | AF41359 | ND |
| 2021-01-27 | AF41357 | ND |
| 2022-02-09 | AF84010 | ND |
| 2022-02-09 | AF84012 | ND |
| 2022-02-09 | AF84014 | ND |
| 2022-02-09 | AF84016 | ND |
| 2023-02-16 | AG29345 | ND |
| 2023-02-16 | AG29347 | ND |
| 2023-02-16 | AG29357 | ND |
| 2023-05-30 | AG42342 | ND |