p-Dichlorobenzene
Cold Brook Fd Base Area
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 | 4 | 0 | ND |
| 2015 | ND | 4 | 0 | ND |
| 2016 | ND | 1 | 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 |
|---|---|---|
| 2014-03-18 | 1403-04687-001 | ND |
| 2014-03-18 | 1403-04687-002 | ND |
| 2014-04-08 | 1404-06217-001 | ND |
| 2014-07-29 | 1407-14799-001 | ND |
| 2015-03-10 | 1503-04132-001 | ND |
| 2015-04-28 | 1504-07510-001 | ND |
| 2015-07-21 | 1507-14804-001 | ND |
| 2015-11-03 | 1511-23765-001 | ND |
| 2016-01-26 | 1601-01625-001 | ND |
| 2017-01-31 | 1702-02156-001 | ND |
| 2017-01-31 | 1702-02156-003 | ND |
| 2018-01-23 | 1801-01692-001 | ND |
| 2019-01-15 | 1901-01193-001 | ND |