p-Dichlorobenzene
Boh-nak Mobile Home Park
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 | 0.338 ppb | 4 | 2 | ND - 0.780 ppb |
| 2019 | 0.128 ppb | 4 | 1 | ND - 0.510 ppb |
| 2020 | 0.128 ppb | 4 | 1 | ND - 0.510 ppb |
| 2021 | ND | 5 | 0 | ND |
| 2022 | ND | 1 | 0 | ND |
| 2023 | 0.898 ppb | 4 | 1 | ND - 3.59 ppb |
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 |
|---|---|---|
| 2018-02-01 | E18002794001 | ND |
| 2018-05-03 | E18003986001 | ND |
| 2018-07-26 | E19000268001 | 0.780 ppb |
| 2018-11-08 | E19001598001 | 0.570 ppb |
| 2019-03-28 | E19003182001 | ND |
| 2019-06-06 | E19004198001 | 0.510 ppb |
| 2019-09-05 | E20000965001 | ND |
| 2019-10-24 | E20001624001 | ND |
| 2020-03-05 | E20003055001 | ND |
| 2020-06-03 | E20003736001 | 0.510 ppb |
| 2020-07-23 | E21000238001 | ND |
| 2020-10-22 | E21001138001 | ND |
| 2021-02-10 | E21002098006 | ND |
| 2021-05-21 | E21003420001 | ND |
| 2021-07-15 | E22000161001 | ND |
| 2021-09-22 | E22000963001 | ND |
| 2021-11-17 | E2200089904 | ND |
| 2022-02-15 | 021522_02_021622250 | ND |
| 2023-02-16 | E2300185106 | ND |
| 2023-06-07 | E2300298601 | ND |
| 2023-08-02 | E2400035701 | ND |
| 2023-10-17 | E2400092901 | 3.59 ppb |