p-Dichlorobenzene
The Cape Master 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 | 7 | 0 | ND |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | ND | 3 | 0 | ND |
| 2021 | ND | 8 | 0 | ND |
| 2022 | ND | 8 | 0 | ND |
| 2023 | ND | 9 | 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 |
|---|---|---|
| 2018-02-06 | CA17757-01 | ND |
| 2018-02-06 | CA17755-03 | ND |
| 2018-03-06 | CA17752-01 | ND |
| 2018-03-06 | CB03889-01 | ND |
| 2018-05-15 | CB04693-01 | ND |
| 2018-07-17 | CB07835-01 | ND |
| 2018-11-06 | CB13104-01 | ND |
| 2020-01-21 | CC18889-01 | ND |
| 2020-01-21 | CC18891-01 | ND |
| 2020-05-05 | CD02652-01 | ND |
| 2021-01-19 | CD18124-01 | ND |
| 2021-02-17 | CD18121-01 | ND |
| 2021-02-17 | CD18125-01 | ND |
| 2021-02-17 | CE03021-01 | ND |
| 2021-02-24 | CD21065-01 | ND |
| 2021-05-04 | CE02283-01 | ND |
| 2021-09-29 | CE07328-01 | ND |
| 2021-12-07 | CE12279-01 | ND |
| 2022-02-16 | 37729_22-07141 | ND |
| 2022-02-16 | 37729_22-07142 | ND |
| 2022-02-16 | 37729_22-07143 | ND |
| 2022-02-16 | 37729_22-07144 | ND |
| 2022-02-16 | 37729_22-07139 | ND |
| 2022-05-18 | 37729_22-22020 | ND |
| 2022-08-19 | 37729_22-39860 | ND |
| 2022-11-17 | 37729_22-56709 | ND |
| 2023-02-07 | 37729_23-06320 | ND |
| 2023-03-08 | 37729_23-11895 | ND |
| 2023-03-08 | 37729_23-11896 | ND |
| 2023-05-03 | 37729_23-22179 | ND |
| 2023-05-03 | 37729_23-22206 | ND |
| 2023-07-13 | 37729_23-36817 | ND |
| 2023-09-21 | 37729_23-53836 | ND |
| 2023-11-16 | 37729_23-65445 | ND |
| 2023-11-16 | 37729_23-65446 | ND |