p-Dichlorobenzene
S S WSC
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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | ND | 2 | 0 | ND |
| 2015 | ND | 4 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 4 | 0 | ND |
| 2018 | ND | 3 | 0 | ND |
| 2019 | ND | 4 | 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 |
|---|---|---|
| 2014-03-26 | AC48344 | ND |
| 2014-09-08 | AC66064 | ND |
| 2015-01-15 | AC76454 | ND |
| 2015-01-15 | AC76450 | ND |
| 2015-01-15 | AC76452 | ND |
| 2015-01-15 | AC76448 | ND |
| 2016-01-21 | AD19289 | ND |
| 2016-01-21 | AD19283 | ND |
| 2016-01-21 | AD19297 | ND |
| 2016-01-21 | AD19295 | ND |
| 2017-05-10 | AD83658 | ND |
| 2017-05-10 | AD83656 | ND |
| 2017-05-10 | AD83648 | ND |
| 2017-05-10 | AD83650 | ND |
| 2018-07-02 | AE32233 | ND |
| 2018-07-02 | AE32229 | ND |
| 2018-07-02 | AE32231 | ND |
| 2019-03-28 | AE60472 | ND |
| 2019-03-28 | AE60474 | ND |
| 2019-03-28 | AE60480 | ND |
| 2019-03-28 | AE60478 | ND |