p-Dichlorobenzene
Berkley Beach - Ebb Tide Beach
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 | 5 | 0 | ND |
| 2015 | ND | 6 | 0 | ND |
| 2016 | ND | 6 | 0 | ND |
| 2017 | ND | 3 | 0 | ND |
| 2018 | ND | 3 | 0 | ND |
| 2019 | ND | 3 | 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 |
|---|---|---|
| 2014-02-10 | 25028501 | ND |
| 2014-02-10 | 25028401 | ND |
| 2014-02-10 | 25028301 | ND |
| 2014-09-17 | 27051301 | ND |
| 2014-09-17 | 27051201 | ND |
| 2015-04-14 | 00001_EXP-AMERIC | ND |
| 2015-04-14 | 00001_EXP-AMERIC | ND |
| 2015-04-14 | 00001_EXP-AMERIC | ND |
| 2015-07-21 | 460274-AMERICAN | ND |
| 2015-07-21 | 460274-AMERICAN | ND |
| 2015-07-21 | 460274-AMERICAN | ND |
| 2016-01-11 | 31010101 | ND |
| 2016-01-11 | 31009901 | ND |
| 2016-01-11 | 31009701 | ND |
| 2016-05-17 | 32049901 | ND |
| 2016-05-17 | 32049701 | ND |
| 2016-05-17 | 32049801 | ND |
| 2017-01-23 | 34238601 | ND |
| 2017-01-23 | 34238801 | ND |
| 2017-02-21 | 34238401 | ND |
| 2018-01-16 | 38194501 | ND |
| 2018-01-16 | 38194701 | ND |
| 2018-01-16 | 38194901 | ND |
| 2019-01-28 | 42533801-VOC | ND |
| 2019-01-28 | 42534001-VOC | ND |
| 2019-01-28 | 42534201-VOC | ND |