p-Dichlorobenzene
Tobyhanna Army Depot
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 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | ND | 4 | 0 | ND |
| 2021 | ND | 3 | 0 | ND |
| 2022 | ND | 4 | 0 | ND |
| 2023 | ND | 2 | 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 |
|---|---|---|
| 2020-01-28 | 21523017.00 | ND |
| 2020-05-05 | 22238801.00 | ND |
| 2020-07-13 | 22630155.00 | ND |
| 2020-10-06 | 23204744.00 | ND |
| 2021-01-05 | 23734227.00 | ND |
| 2021-09-21 | 25242571.00 | ND |
| 2021-12-17 | 25785784.00 | ND |
| 2022-02-22 | 26309857.00 | ND |
| 2022-07-19 | 27060926.00 | ND |
| 2022-09-20 | 27465078.00 | ND |
| 2022-11-08 | 27844678.00 | ND |
| 2023-03-21 | 28544465.00 | ND |
| 2023-04-25 | 28726028.00 | ND |