p-Dichlorobenzene
Bull Run Mountain/evergreen (brme)
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 | 6 | 0 | ND |
| 2020 | ND | 6 | 0 | ND |
| 2021 | ND | 6 | 0 | ND |
| 2022 | ND | 6 | 0 | ND |
| 2023 | ND | 6 | 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 |
|---|---|---|
| 2018-07-18 | WE-1-1807V | ND |
| 2018-07-18 | WB-7-1807V | ND |
| 2018-07-18 | WB-5-1807V | ND |
| 2018-07-18 | WB-13-1807V | ND |
| 2018-07-18 | WB-11-1807V | ND |
| 2018-07-18 | WB-12-1807V | ND |
| 2019-10-28 | WB-12-1910V | ND |
| 2019-10-28 | WB-11-1910V | ND |
| 2019-10-28 | WE-1-1910V | ND |
| 2019-10-28 | WB-7-1910V | ND |
| 2019-10-28 | WB-5-1910V | ND |
| 2019-10-28 | WB-13-1910V | ND |
| 2020-02-24 | WE-1-2002V | ND |
| 2020-02-24 | WB-7-2002V | ND |
| 2020-02-24 | WB-5-2002V | ND |
| 2020-02-24 | WB-13-2002V | ND |
| 2020-02-24 | WB-12-2002V | ND |
| 2020-02-24 | WB-11-2002V | ND |
| 2021-04-27 | 21042610-01V | ND |
| 2021-04-27 | 21042610-06V | ND |
| 2021-04-27 | 21042610-05V | ND |
| 2021-04-27 | 21042610-04V | ND |
| 2021-04-27 | 21042610-03V | ND |
| 2021-04-27 | 21042610-02V | ND |
| 2022-07-26 | 22-12670 VOC | ND |
| 2022-07-26 | 22-12669 VOC | ND |
| 2022-07-26 | 22-12668 VOC | ND |
| 2022-07-26 | 22-12667 VOC | ND |
| 2022-09-29 | 22092907-01-VOC | ND |
| 2022-12-13 | 22-21032 VOC | ND |
| 2023-10-24 | 23102311-01_VOC | ND |
| 2023-10-24 | 23102311-02_VOC | ND |
| 2023-10-24 | 23102311-03_VOC | ND |
| 2023-10-24 | 23102311-04_VOC | ND |
| 2023-10-24 | 23102311-05_VOC | ND |
| 2023-10-24 | 23102311-06_VOC | ND |