p-Dichlorobenzene
City of Stockton
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 | 2 | 0 | ND |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | ND | 15 | 0 | ND |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | ND | 12 | 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 |
|---|---|---|
| 2014-06-04 | 5810-094-0900 | ND |
| 2014-11-18 | 5810-084-0940 | ND |
| 2016-08-17 | 5867-037-1100 | ND |
| 2016-08-17 | 5867-040-1130 | ND |
| 2016-08-17 | 5867-038-1030 | ND |
| 2016-08-18 | 5867-100-0940 | ND |
| 2016-08-18 | 5867-046-0830 | ND |
| 2016-08-18 | 5867-098-0900 | ND |
| 2016-08-18 | 5867-092-1020 | ND |
| 2016-08-24 | 5867-094-0930 | ND |
| 2016-08-24 | 5867-083-1100 | ND |
| 2016-08-24 | 5867-084-1015 | ND |
| 2016-08-24 | 5867-087-0830 | ND |
| 2016-08-25 | 5867-003-0927 | ND |
| 2016-08-25 | 5867-089-1030 | ND |
| 2016-08-25 | 5867-055-1101 | ND |
| 2016-09-07 | 5867-096-0840 | ND |
| 2019-08-06 | 1610-092-0910 | ND |
| 2019-08-06 | 1610-096-1000 | ND |
| 2019-08-06 | 1610-046-0840 | ND |
| 2019-08-06 | 1610-098-0800 | ND |
| 2019-08-13 | 1610-084-1010 | ND |
| 2019-08-13 | 1610-087-0750 | ND |
| 2019-08-13 | 1610-083-1105 | ND |
| 2019-08-13 | 1610-055-1050 | ND |
| 2019-08-13 | 1610-094-0930 | ND |
| 2019-08-13 | 1610-040-0910 | ND |
| 2019-08-13 | 1610-037-0810 | ND |
| 2019-08-13 | 1610-038-0845 | ND |