p-Dichlorobenzene
Canonchet Cliffs Water Association Inc.
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 | 8 | 0 | ND |
| 2015 | ND | 4 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | ND | 4 | 0 | ND |
| 2019 | ND | 1 | 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 |
|---|---|---|
| 2014-03-03 | 1401654-04_TO12 | ND |
| 2014-03-03 | 1401654-03_TO12 | ND |
| 2014-03-03 | 1401654-01_TO12 | ND |
| 2014-03-03 | 1401654-02_TO12 | ND |
| 2014-04-01 | 1402088-02_TO12 | ND |
| 2014-04-01 | 1402088-01_TO12 | ND |
| 2014-07-29 | 1404091-01_TO12 | ND |
| 2014-07-29 | 1404091-02_TO12 | ND |
| 2015-03-16 | 1501554-03_TO12 | ND |
| 2015-03-16 | 1501554-04_TO12 | ND |
| 2015-03-16 | 1501554-02_TO12 | ND |
| 2015-03-16 | 1501554-01_TO12 | ND |
| 2016-03-03 | 1601386-04_TO12 | ND |
| 2016-03-03 | 1601386-03_TO12 | ND |
| 2016-03-03 | 1601386-02_TO12 | ND |
| 2016-03-03 | 1601386-01_TO12 | ND |
| 2017-03-23 | 1701622-01_TO12 | ND |
| 2018-03-19 | 1801421-03_TO12 | ND |
| 2018-03-19 | 1801421-02_TO12 | ND |
| 2018-03-19 | 1801421-01_TO12 | ND |
| 2018-03-19 | 1801421-04_TO12 | ND |
| 2019-03-05 | 1901228-02_TO12 | ND |