p-Dichlorobenzene
City of Pasadena
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 | 5 | 0 | ND |
| 2016 | ND | 8 | 0 | ND |
| 2017 | ND | 12 | 0 | ND |
| 2018 | ND | 9 | 0 | ND |
| 2019 | ND | 7 | 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 | AC45988 | ND |
| 2014-03-06 | AC46000 | ND |
| 2014-04-24 | AC51728 | ND |
| 2014-04-24 | AC51724 | ND |
| 2014-04-24 | AC51722 | ND |
| 2015-01-14 | AC76273 | ND |
| 2015-01-14 | AC76265 | ND |
| 2015-01-14 | AC76229 | ND |
| 2015-01-14 | AC76267 | ND |
| 2015-01-14 | AC76203 | ND |
| 2016-01-11 | AD17364 | ND |
| 2016-01-11 | AD17352 | ND |
| 2016-01-11 | AD17360 | ND |
| 2016-04-06 | AD32085 | ND |
| 2016-04-06 | AD32083 | ND |
| 2016-06-17 | AD41169 | ND |
| 2016-07-06 | AD43177 | ND |
| 2016-10-06 | AD52692 | ND |
| 2017-01-10 | AD63998 | ND |
| 2017-03-16 | AD75468 | ND |
| 2017-03-16 | AD75448 | ND |
| 2017-03-16 | AD75466 | ND |
| 2017-03-16 | AD75462 | ND |
| 2017-03-16 | AD75454 | ND |
| 2017-03-16 | AD75450 | ND |
| 2017-03-16 | AD75452 | ND |
| 2017-04-04 | AD78285 | ND |
| 2017-07-11 | AD88935 | ND |
| 2017-09-18 | AD96543 | ND |
| 2017-10-31 | AE02981 | ND |
| 2018-02-06 | AE12532 | ND |
| 2018-02-06 | AE12534 | ND |
| 2018-05-02 | AE24847 | ND |
| 2018-05-02 | AE24845 | ND |
| 2018-05-02 | AE24855 | ND |
| 2018-05-02 | AE24851 | ND |
| 2018-06-26 | AE31497 | ND |
| 2018-06-26 | AE31481 | ND |
| 2018-11-14 | AE46107 | ND |
| 2019-01-30 | AE52244 | ND |
| 2019-01-30 | AE52210 | ND |
| 2019-03-06 | AE57409 | ND |
| 2019-03-06 | AE57411 | ND |
| 2019-03-06 | AE57407 | ND |
| 2019-08-06 | AE77247 | ND |
| 2019-08-06 | AE77265 | ND |