p-Dichlorobenzene
Swta - Main System
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 | 7 | 0 | ND |
| 2021 | ND | 5 | 0 | ND |
| 2022 | ND | 5 | 0 | ND |
| 2023 | ND | 7 | 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 |
|---|---|---|
| 2018-01-09 | 8012152-02 | ND |
| 2018-04-10 | 8042613-02 | ND |
| 2018-04-10 | 8042612-01 | ND |
| 2018-04-10 | 8042612-02 | ND |
| 2018-04-10 | 8042612-03 | ND |
| 2018-04-10 | 8042612-04 | ND |
| 2019-04-23 | 9044997-01 | ND |
| 2019-04-23 | 9044997-02 | ND |
| 2019-04-23 | 9044997-03 | ND |
| 2019-04-23 | 9044997-04 | ND |
| 2019-04-23 | 9044997-05 | ND |
| 2020-04-14 | 22080217.00 | ND |
| 2020-04-14 | 22080280.00 | ND |
| 2020-04-14 | 22080196.00 | ND |
| 2020-04-14 | 22080175.00 | ND |
| 2020-04-14 | 22080154.00 | ND |
| 2020-04-14 | 22080238.00 | ND |
| 2020-04-14 | 22080259.00 | ND |
| 2021-04-06 | 24301750.00 | ND |
| 2021-04-06 | 24301813.00 | ND |
| 2021-04-06 | 24301771.00 | ND |
| 2021-04-06 | 24301792.00 | ND |
| 2021-04-06 | 24301834.00 | ND |
| 2022-05-31 | 26899448.00 | ND |
| 2022-05-31 | 26899511.00 | ND |
| 2022-05-31 | 26899469.00 | ND |
| 2022-05-31 | 26899490.00 | ND |
| 2022-05-31 | 26899532.00 | ND |
| 2023-04-04 | 28761075.00 | ND |
| 2023-04-04 | 28761072.00 | ND |
| 2023-04-04 | 28761077.00 | ND |
| 2023-04-04 | 28761076.00 | ND |
| 2023-04-04 | 28761074.00 | ND |
| 2023-04-04 | 28761073.00 | ND |
| 2023-12-12 | 30296272.00 | ND |