p-Dichlorobenzene
Pennsylvania American Water Company Yardley
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 | 3 | 0 | ND |
| 2015 | ND | 3 | 0 | ND |
| 2016 | ND | 3 | 0 | ND |
| 2017 | ND | 4 | 0 | ND |
| 2018 | ND | 3 | 0 | ND |
| 2019 | ND | 3 | 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 |
|---|---|---|
| 2014-04-02 | 25324901 | ND |
| 2014-08-05 | 26501001 | ND |
| 2014-08-05 | 26500201 | ND |
| 2015-04-01 | 12620820 | ND |
| 2015-08-12 | 13123094 | ND |
| 2015-08-12 | 13123060 | ND |
| 2016-04-05 | 14089327 | ND |
| 2016-08-04 | 14719944 | ND |
| 2016-08-04 | 14719923 | ND |
| 2017-04-06 | 15922049 | ND |
| 2017-08-02 | 16550786 | ND |
| 2017-09-29 | 16712941 | ND |
| 2017-10-31 | 16866922 | ND |
| 2018-04-11 | 39062701 | ND |
| 2018-08-14 | 40630801 | ND |
| 2018-08-14 | 40630201 | ND |
| 2019-04-04 | 43649801 | ND |
| 2019-08-22 | 45815901 | ND |
| 2019-08-22 | 45816001 | ND |