p-Dichlorobenzene
Altoona Water Authority
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 | 8 | 0 | ND |
| 2022 | ND | 6 | 0 | ND |
| 2023 | ND | 5 | 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 |
|---|---|---|
| 2018-08-28 | 8H28046-01 | ND |
| 2018-08-28 | 8H28044-01 | ND |
| 2018-08-28 | 8H28051-01 | ND |
| 2018-08-28 | 8H28032-01 | ND |
| 2018-08-28 | 8H28031-01 | ND |
| 2018-08-28 | 8H28047-01 | ND |
| 2019-11-06 | 9K07058-01 | ND |
| 2019-11-06 | 9K07058-03 | ND |
| 2019-11-07 | 9K07074-01 | ND |
| 2019-11-07 | 9K07072-01 | ND |
| 2019-12-05 | 9L05126-01 | ND |
| 2020-02-06 | 21729173.00 | ND |
| 2020-08-05 | 22869698.00 | ND |
| 2020-08-05 | 22869697.00 | ND |
| 2020-08-05 | 22869696.00 | ND |
| 2020-08-10 | 22869909.00 | ND |
| 2020-08-10 | 22869910.00 | ND |
| 2020-08-10 | 22869908.00 | ND |
| 2021-07-01 | 24897502.00 | ND |
| 2021-07-08 | 24897523.00 | ND |
| 2021-08-10 | 25092077.00 | ND |
| 2021-08-10 | 25092018.00 | ND |
| 2021-08-10 | 25092076.00 | ND |
| 2021-08-10 | 25092019.00 | ND |
| 2021-08-10 | 25092020.00 | ND |
| 2021-12-13 | 25828699.00 | ND |
| 2022-02-24 | 26177236.00 | ND |
| 2022-08-16 | 27309598.00 | ND |
| 2022-08-16 | 27309674.00 | ND |
| 2022-08-16 | 27308839.00 | ND |
| 2022-08-16 | 27309640.00 | ND |
| 2022-11-10 | 27885521.00 | ND |
| 2023-07-26 | 29371567.00 | ND |
| 2023-07-26 | 29371524.00 | ND |
| 2023-07-26 | 29371480.00 | ND |
| 2023-07-26 | 29371546.00 | ND |
| 2023-07-26 | 29371502.00 | ND |