p-Dichlorobenzene
City of The Dalles
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 | 1 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 4 | 0 | ND |
| 2022 | ND | 4 | 0 | ND |
| 2023 | ND | 4 | 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 |
|---|---|---|
| 2018-08-16 | V8H038102-V | ND |
| 2018-08-16 | V8H038101-V | ND |
| 2018-08-16 | V8H038103-V | ND |
| 2019-08-14 | B9H225803-V | ND |
| 2020-08-11 | VDH027501-V | ND |
| 2021-08-18 | 202108190352-V | ND |
| 2021-08-18 | 202108190359-V | ND |
| 2021-08-18 | 202108190351-V | ND |
| 2021-08-18 | 202108190360-V | ND |
| 2022-09-07 | 810-36663-2-V | ND |
| 2022-09-07 | 810-36663-4-V | ND |
| 2022-09-07 | 810-36663-3-V | ND |
| 2022-09-07 | 810-36663-1-V | ND |
| 2023-08-02 | VGH0111-04-V | ND |
| 2023-08-02 | VGH0111-02-V | ND |
| 2023-08-02 | VGH0111-01-V | ND |
| 2023-08-02 | VGH0111-03-V | ND |