p-Dichlorobenzene
Patuxent Naval Air Station (NAVFAC-WASH)
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 | 1 | 0 | ND |
| 2015 | ND | 3 | 0 | ND |
| 2016 | ND | 8 | 0 | ND |
| 2017 | ND | 2 | 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 |
|---|---|---|
| 2014-10-22 | 0180022_07_00152 | ND |
| 2015-09-21 | E16001205001 | ND |
| 2015-09-21 | E16001205004 | ND |
| 2015-11-16 | 23973 | ND |
| 2016-11-03 | E17002040001 | ND |
| 2016-11-03 | E17002040006 | ND |
| 2016-11-03 | E17002040010 | ND |
| 2016-11-03 | E17002040004 | ND |
| 2016-11-03 | E17002040008 | ND |
| 2016-12-01 | E17002362001 | ND |
| 2016-12-22 | 29361-1 | ND |
| 2016-12-22 | 29361-2 | ND |
| 2017-07-27 | E18000358006 | ND |
| 2017-07-27 | E18000358001 | ND |
| 2018-02-20 | 35656 | ND |
| 2019-08-19 | E20000663001 | ND |