p-Dichlorobenzene
St. George Fire District 1
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 | 2 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | ND | 1 | 0 | ND |
| 2019 | N/A | 0 | 0 | N/A |
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 |
|---|---|---|
| 2014-03-17 | 1403-04597-001 | ND |
| 2014-06-11 | 1406-10952-001 | ND |
| 2014-09-16 | 1409-19160-001 | ND |
| 2014-12-18 | BH56691 | ND |
| 2015-03-18 | 1503-04692-001 | ND |
| 2015-06-22 | 1506-12183-001 | ND |
| 2015-09-24 | 1509-20810-001 | ND |
| 2015-12-08 | 1512-26141-001 | ND |
| 2016-08-17 | 1608-18319-001 | ND |
| 2016-11-09 | 1611-25836-001 | ND |
| 2017-09-19 | 1709-22348-001 | ND |
| 2018-09-17 | 1809-23821-001 | ND |