p-Dichlorobenzene
Tri County Joint Municipal Authority
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 |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | ND | 9 | 0 | ND |
2015 | ND | 2 | 0 | ND |
2016 | ND | 1 | 0 | ND |
2017 | ND | 1 | 0 | ND |
2018 | ND | 1 | 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 |
---|---|---|
2014-02-20 | 4021747-01 | ND |
2014-03-21 | 4031896-01 | ND |
2014-04-04 | 4040494-01 | ND |
2014-05-09 | 4051036-01 | ND |
2014-05-09 | 4051036-02 | ND |
2014-08-08 | 4080935-01 | ND |
2014-08-08 | 4080935-02 | ND |
2014-11-07 | 4110753-01 | ND |
2014-11-07 | 4110753-02 | ND |
2015-04-24 | 12698084 | ND |
2015-04-24 | 12698064 | ND |
2016-05-20 | 14338732 | ND |
2017-12-07 | 17241116 | ND |
2018-11-07 | 18K0900-01 | ND |
2019-10-02 | 19J1014-01 | ND |