p-Dichlorobenzene
Pulaski County Public Water Supply District 2
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 | 9 | 0 | ND |
| 2019 | ND | 4 | 0 | ND |
| 2020 | ND | 4 | 0 | ND |
| 2021 | ND | 9 | 0 | ND |
| 2022 | ND | 4 | 0 | ND |
| 2023 | ND | 3 | 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 |
|---|---|---|
| 2018-01-10 | AD12046 | ND |
| 2018-03-05 | AD17401 | ND |
| 2018-05-03 | AD18576 | ND |
| 2018-06-04 | AD19098 | ND |
| 2018-06-04 | AD19099 | ND |
| 2018-06-04 | AD19100 | ND |
| 2018-06-04 | AD19101 | ND |
| 2018-07-11 | AD29485 | ND |
| 2018-10-12 | AD35058 | ND |
| 2019-01-08 | AD38366 | ND |
| 2019-04-08 | AD46655 | ND |
| 2019-07-12 | AD52707 | ND |
| 2019-10-18 | AD57365 | ND |
| 2020-01-13 | AD60686 | ND |
| 2020-04-15 | 2004208 | ND |
| 2020-07-17 | 2011559 | ND |
| 2020-10-22 | 2016607 | ND |
| 2021-01-11 | 2020177 | ND |
| 2021-02-22 | 2101298 | ND |
| 2021-02-22 | 2101290 | ND |
| 2021-02-22 | 2101292 | ND |
| 2021-02-22 | 2101294 | ND |
| 2021-02-22 | 2101296 | ND |
| 2021-04-19 | 2103691 | ND |
| 2021-07-12 | 2113558 | ND |
| 2021-10-25 | 2118127 | ND |
| 2022-01-10 | 2121597 | ND |
| 2022-04-11 | 2204306 | ND |
| 2022-07-11 | 2214666 | ND |
| 2022-10-12 | 2219661 | ND |
| 2023-01-09 | 2223200 | ND |
| 2023-04-11 | 2303410 | ND |
| 2023-07-13 | 2311563 | ND |