p-Dichlorobenzene
Duncan, Village of
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 |
|---|---|---|---|---|
| 2014 | ND | 4 | 0 | ND |
| 2015 | ND | 4 | 0 | ND |
| 2016 | ND | 5 | 0 | ND |
| 2017 | ND | 4 | 0 | ND |
| 2018 | ND | 4 | 0 | ND |
| 2019 | ND | 5 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
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 |
|---|---|---|
| 2014-01-21 | 278561 | ND |
| 2014-04-07 | 293558 | ND |
| 2014-07-07 | 309828 | ND |
| 2014-10-06 | 328707 | ND |
| 2015-01-05 | 343430 | ND |
| 2015-04-06 | 353686 | ND |
| 2015-07-06 | 372092 | ND |
| 2015-10-05 | 392382 | ND |
| 2016-01-20 | ND | |
| 2016-04-04 | ND | |
| 2016-07-05 | ND | |
| 2016-09-19 | ND | |
| 2016-10-11 | ND | |
| 2017-03-06 | ND | |
| 2017-06-12 | ND | |
| 2017-09-05 | ND | |
| 2017-10-16 | ND | |
| 2018-01-02 | 530843 | ND |
| 2018-04-03 | 542883 | ND |
| 2018-07-09 | 560193 | ND |
| 2018-10-15 | 577046 | ND |
| 2019-01-14 | 590577 | ND |
| 2019-04-01 | 602878 | ND |
| 2019-07-08 | 621137 | ND |
| 2019-09-09 | 630435 | ND |
| 2019-10-21 | 638589 | ND |