p-Dichlorobenzene
San Joaquin County-mokelumne Acres
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 | 3 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | ND | 4 | 0 | ND |
| 2022 | ND | 4 | 0 | ND |
| 2023 | N/A | 0 | 0 | N/A |
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 |
|---|---|---|
| 2018-12-05 | CA3910017_008_008-201812050945 | ND |
| 2018-12-05 | CA3910017_009_009-201812051025 | ND |
| 2018-12-05 | CA3910017_007_007-201812051000 | ND |
| 2019-08-07 | CA3910017_006_006-201908071100 | ND |
| 2019-08-07 | CA3910017_003_003-201908071045 | ND |
| 2021-12-14 | CA3910017_007_007-202112141030 | ND |
| 2021-12-14 | CA3910017_009_009-202112140955 | ND |
| 2021-12-14 | CA3910017_008_008-202112141020 | ND |
| 2021-12-27 | CA3910017_007_007-202112271110 | ND |
| 2022-01-26 | CA3910017_007_007-202201261130 | ND |
| 2022-02-02 | CA3910017_007_007-202202021200 | ND |
| 2022-08-09 | CA3910017_003_003-202208090901 | ND |
| 2022-08-09 | CA3910017_006_006-202208091005 | ND |