p-Dichlorobenzene
Aqua Pa Uwchlan
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 | 7 | 0 | ND |
| 2020 | ND | 6 | 0 | ND |
| 2021 | ND | 6 | 0 | ND |
| 2022 | ND | 7 | 0 | ND |
| 2023 | ND | 8 | 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 |
|---|---|---|
| 2018-01-29 | AF74449 | ND |
| 2018-01-31 | AF73819 | ND |
| 2018-02-26 | AF76934 | ND |
| 2018-02-26 | AF76935 | ND |
| 2018-03-13 | AF77984 | ND |
| 2018-03-13 | AF77985 | ND |
| 2019-03-06 | AG10268 | ND |
| 2019-03-06 | AG10267 | ND |
| 2019-03-06 | AG10266 | ND |
| 2019-03-12 | AG10439 | ND |
| 2019-03-12 | AG10441 | ND |
| 2019-03-27 | AG11746 | ND |
| 2019-11-07 | AG37520 | ND |
| 2020-03-11 | 21837115.00 | ND |
| 2020-03-11 | 21837199.00 | ND |
| 2020-03-11 | 21837157.00 | ND |
| 2020-03-11 | 21837136.00 | ND |
| 2020-03-26 | 21837178.00 | ND |
| 2020-05-21 | 22205096.00 | ND |
| 2021-02-10 | 23880020.00 | ND |
| 2021-02-10 | 23880062.00 | ND |
| 2021-02-10 | 23880041.00 | ND |
| 2021-02-23 | 23880104.00 | ND |
| 2021-02-23 | 23880083.00 | ND |
| 2021-07-09 | 24819012.00 | ND |
| 2022-02-18 | 26109268.00 | ND |
| 2022-02-18 | 26109356.00 | ND |
| 2022-02-18 | 26109289.00 | ND |
| 2022-02-18 | 26109310.00 | ND |
| 2022-02-18 | 26109331.00 | ND |
| 2022-08-03 | 27224140.00 | ND |
| 2022-11-29 | 27814195.00 | ND |
| 2023-02-17 | 28341079.00 | ND |
| 2023-02-27 | 28341100.00 | ND |
| 2023-02-27 | 28341121.00 | ND |
| 2023-03-21 | 28512450.00 | ND |
| 2023-03-21 | 28512429.00 | ND |
| 2023-04-17 | 28692196.00 | ND |
| 2023-05-01 | 28890016.00 | ND |
| 2023-08-29 | 29691266.00 | ND |