p-Dichlorobenzene
Freedom 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.
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 | ND | 5 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 3 | 0 | ND |
| 2018 | ND | 2 | 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 |
|---|---|---|
| 2014-01-20 | 0060002_01_10681 | ND |
| 2014-08-06 | 0060002_01_00550 | ND |
| 2015-04-27 | 2067373001 | ND |
| 2015-06-11 | E15003916006 | ND |
| 2015-08-31 | E16000843001 | ND |
| 2015-12-21 | 21148690011 | ND |
| 2015-12-21 | 21148700011 | ND |
| 2016-02-17 | E16002977008 | ND |
| 2016-05-15 | 2124305001 | ND |
| 2017-02-13 | 2208108001 | ND |
| 2017-05-31 | E17004688001 | ND |
| 2017-10-02 | 2266147001 | ND |
| 2018-01-22 | 18A1054-01 | ND |
| 2018-07-09 | 18G0572-01 | ND |
| 2019-07-29 | E20000379008 | ND |