p-Dichlorobenzene
Rubidoux Community SD
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 | N/A | 0 | 0 | N/A |
| 2016 | ND | 6 | 0 | ND |
| 2017 | ND | 5 | 0 | ND |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | ND | 4 | 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 |
|---|---|---|
| 2014-05-15 | 4790-015-0755 | ND |
| 2014-05-15 | 4790-014-0800 | ND |
| 2014-05-15 | 4790-013-0815 | ND |
| 2014-05-15 | 4790-002-0915 | ND |
| 2016-03-18 | 4790-006-1110 | ND |
| 2016-05-10 | 4790-004-1200 | ND |
| 2016-05-10 | 4790-006-1215 | ND |
| 2016-05-10 | 4790-013-1045 | ND |
| 2016-05-10 | 4790-002-1030 | ND |
| 2016-05-10 | 4790-014-1100 | ND |
| 2017-05-10 | 4790-013-1000 | ND |
| 2017-05-10 | 4790-014-1025 | ND |
| 2017-05-10 | 4790-006-1115 | ND |
| 2017-05-10 | 4790-004-1045 | ND |
| 2017-05-10 | 4790-002-0930 | ND |
| 2019-03-28 | 4790-029-1315 | ND |
| 2019-05-08 | 4790-013-0915 | ND |
| 2019-05-08 | 4790-002-0816 | ND |
| 2019-10-02 | 4790-029-0140 | ND |