p-Dichlorobenzene
Lake Arrowhead Subdivision
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.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | ND | 7 | 0 | ND |
2015 | ND | 1 | 0 | ND |
2016 | ND | 1 | 0 | ND |
2017 | ND | 3 | 0 | ND |
2018 | N/A | 0 | 0 | N/A |
2019 | N/A | 0 | 0 | N/A |
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 | AI28914 | ND |
2014-03-03 | AI28915 | ND |
2014-03-03 | AI28916 | ND |
2014-03-03 | AI28917 | ND |
2014-04-15 | AI38032 | ND |
2014-07-08 | AI45051 | ND |
2014-10-08 | AI57108 | ND |
2015-04-27 | AI75614 | ND |
2016-02-02 | AJ05469 | ND |
2017-04-19 | AJ53557 | ND |
2017-04-19 | AJ53558 | ND |
2017-04-19 | AJ53559 | ND |