p-Dichlorobenzene
Centennial Park Domestic Water Improvement District
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 | N/A | 0 | 0 | N/A |
2015 | N/A | 0 | 0 | N/A |
2016 | ND | 1 | 0 | ND |
2017 | ND | 16 | 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 |
---|---|---|
2016-08-29 | 201608300195V | ND |
2017-03-13 | 201703140305V | ND |
2017-03-13 | 201703140304V | ND |
2017-03-13 | 201703140303V | ND |
2017-03-13 | 201703140302V | ND |
2017-05-30 | 201705310046V | ND |
2017-05-30 | 201705310045V | ND |
2017-05-30 | 201705310044V | ND |
2017-05-30 | 201705310043V | ND |
2017-08-23 | 201708240179V | ND |
2017-08-23 | 201708240181V | ND |
2017-08-23 | 201708240180V | ND |
2017-08-23 | 201708240178V | ND |
2017-10-23 | 201710240243V | ND |
2017-10-23 | 201710240242V | ND |
2017-10-23 | 201710240241V | ND |
2017-10-23 | 201710240240V | ND |
2018-05-30 | 201805310330V | ND |
2018-05-30 | 201805310328V | ND |
2018-09-11 | 201809120454V | ND |
2019-02-19 | 201902200053V | ND |
2019-02-19 | 201902200056V | ND |
2019-02-19 | 201902200055V | ND |
2019-02-19 | 201902200054V | ND |