p-Dichlorobenzene
St. Elmo-irvington Water Authority
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 | 3 | 0 | ND |
| 2015 | ND | 3 | 0 | ND |
| 2016 | ND | 3 | 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 |
|---|---|---|
| 2014-03-06 | 400-87475-2 | ND |
| 2014-03-06 | 400-87475-1 | ND |
| 2014-12-15 | 400-99672-1 | ND |
| 2015-03-18 | 400-103216-1 | ND |
| 2015-03-18 | 400-103216-2 | ND |
| 2015-10-21 | 400-112661-1 | ND |
| 2016-03-30 | 400-119520-2 | ND |
| 2016-03-30 | 400-119520-1 | ND |
| 2016-11-10 | 400-129920-1 | ND |
| 2017-03-01 | 400-134596-2 | ND |
| 2017-03-01 | 400-134596-1 | ND |
| 2017-11-06 | 400-145545-1 | ND |
| 2018-03-01 | 400-150213-1 | ND |
| 2018-03-01 | 400-150213-2 | ND |
| 2018-11-08 | 400-161795-1A | ND |
| 2019-02-18 | 680-164711-2 | ND |
| 2019-02-18 | 680-164711-1 | ND |
| 2019-11-22 | 400-180081-1 | ND |