p-Dichlorobenzene
City of Fountain Valley
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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | ND | 14 | 0 | ND |
| 2015 | ND | 9 | 0 | ND |
| 2016 | ND | 7 | 0 | ND |
| 2017 | ND | 6 | 0 | ND |
| 2018 | ND | 9 | 0 | ND |
| 2019 | ND | 8 | 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 |
|---|---|---|
| 2014-01-14 | 4417-006-0800 | ND |
| 2014-01-15 | 4417-008-0800 | ND |
| 2014-01-28 | 4417-009-0735 | ND |
| 2014-01-29 | 4417-011-0740 | ND |
| 2014-01-30 | 4417-010-0715 | ND |
| 2014-04-07 | 4417-008-0840 | ND |
| 2014-04-07 | 4417-006-0800 | ND |
| 2014-04-08 | 4417-010-0825 | ND |
| 2014-04-08 | 4417-020-0800 | ND |
| 2014-04-09 | 4417-009-0745 | ND |
| 2014-04-09 | 4417-011-0815 | ND |
| 2014-07-17 | 4417-010-0810 | ND |
| 2014-10-20 | 4417-009-0840 | ND |
| 2014-11-25 | 4417-010-0755 | ND |
| 2015-01-12 | 4417-009-0840 | ND |
| 2015-01-12 | 4417-020-0800 | ND |
| 2015-01-14 | 4417-010-0835 | ND |
| 2015-04-07 | 4417-008-0915 | ND |
| 2015-04-07 | 4417-006-0830 | ND |
| 2015-04-15 | 4417-020-0830 | ND |
| 2015-04-15 | 4417-011-0750 | ND |
| 2015-05-28 | 4417-009-0735 | ND |
| 2015-07-13 | 4417-006-0820 | ND |
| 2016-01-13 | 4417-010-0750 | ND |
| 2016-04-05 | 4417-009-0735 | ND |
| 2016-04-06 | 4417-008-0810 | ND |
| 2016-04-06 | 4417-020-0745 | ND |
| 2016-04-07 | 4417-006-0850 | ND |
| 2016-04-07 | 4417-011-0755 | ND |
| 2016-07-12 | 4417-006-0820 | ND |
| 2017-01-12 | 4417-010-0940 | ND |
| 2017-04-10 | 4417-020-0805 | ND |
| 2017-04-18 | 4417-011-0825 | ND |
| 2017-04-18 | 4417-008-0800 | ND |
| 2017-06-15 | 4417-006-0845 | ND |
| 2017-10-03 | 4417-006-0820 | ND |
| 2018-01-08 | 4417-006-0800 | ND |
| 2018-01-10 | 4417-008-0720 | ND |
| 2018-01-11 | 4417-010-0715 | ND |
| 2018-02-26 | 4417-011-0750 | ND |
| 2018-04-09 | 4417-008-0830 | ND |
| 2018-04-09 | 4417-006-0750 | ND |
| 2018-04-11 | 4417-020-0740 | ND |
| 2018-06-20 | 4417-011-0845 | ND |
| 2018-09-18 | 4417-009-0805 | ND |
| 2019-01-07 | 4417-008-0830 | ND |
| 2019-01-09 | 4417-006-0800 | ND |
| 2019-01-17 | 4417-009-0820 | ND |
| 2019-01-17 | 4417-010-0750 | ND |
| 2019-02-11 | 4417-020-0850 | ND |
| 2019-02-12 | 4417-011-0810 | ND |
| 2019-04-02 | 4417-008-0840 | ND |
| 2019-04-02 | 4417-006-0800 | ND |