p-Dichlorobenzene
Washington Suburban Sanitary Commission
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 | 24 | 0 | ND |
| 2015 | ND | 18 | 0 | ND |
| 2016 | ND | 24 | 0 | ND |
| 2017 | ND | 24 | 0 | ND |
| 2018 | ND | 24 | 0 | ND |
| 2019 | ND | 26 | 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 | 0150005_01_AC148 | ND |
| 2014-01-14 | 0150005_02_AC147 | ND |
| 2014-02-04 | 0150005_01_AC170 | ND |
| 2014-03-04 | 0150005_01_AC197 | ND |
| 2014-03-04 | 0150005_02_AC196 | ND |
| 2014-04-08 | 0150005_01_AC237 | ND |
| 2014-04-08 | 0150005_02_AC237 | ND |
| 2014-05-06 | 0150005_01_AC271 | ND |
| 2014-05-06 | 0150005_02_AC270 | ND |
| 2014-06-03 | 0150005_01_AC301 | ND |
| 2014-06-03 | 0150005_02_AC300 | ND |
| 2014-06-03 | 0150005_02_AC300 | ND |
| 2014-07-08 | 0150005_01_AC339 | ND |
| 2014-07-08 | 0150005_02_AC338 | ND |
| 2014-08-05 | 0150005_01_AC369 | ND |
| 2014-08-05 | 0150005_02_AC369 | ND |
| 2014-09-02 | 0150005_01_AC398 | ND |
| 2014-09-02 | 0150005_02_AC396 | ND |
| 2014-10-07 | 0150005_01_AC442 | ND |
| 2014-10-07 | 0150005_02_AC441 | ND |
| 2014-11-04 | 0150005_01_AC476 | ND |
| 2014-11-04 | 0150005_02_AC475 | ND |
| 2014-12-02 | 0150005_01_AC502 | ND |
| 2014-12-02 | 0150005_02_AC501 | ND |
| 2015-01-22 | 0150005_01_AC550 | ND |
| 2015-01-22 | 0150005_02_AC550 | ND |
| 2015-02-03 | 0150005_01_AC564 | ND |
| 2015-02-03 | 0150005_02_AC562 | ND |
| 2015-03-03 | AC59363 | ND |
| 2015-03-03 | AC59245 | ND |
| 2015-04-07 | AC63103 | ND |
| 2015-04-07 | AC63036 | ND |
| 2015-05-19 | AC67868 | ND |
| 2015-05-19 | AC67808 | ND |
| 2015-06-02 | AC69343 | ND |
| 2015-06-02 | AC69253 | ND |
| 2015-07-21 | AC75022 | ND |
| 2015-07-21 | AC74884 | ND |
| 2015-08-04 | AC76879 | ND |
| 2015-08-04 | AC76754 | ND |
| 2015-09-01 | AC80713 | ND |
| 2015-09-01 | AC80635 | ND |
| 2016-01-05 | AC95185 | ND |
| 2016-01-05 | AC95133 | ND |
| 2016-02-02 | AC98187 | ND |
| 2016-02-02 | AC98111 | ND |
| 2016-03-01 | AD01286 | ND |
| 2016-03-01 | AD01207 | ND |
| 2016-04-05 | AD05220 | ND |
| 2016-04-05 | AD05144 | ND |
| 2016-05-03 | AD08893 | ND |
| 2016-05-03 | AD08793 | ND |
| 2016-06-07 | AD13283 | ND |
| 2016-06-07 | AD13200 | ND |
| 2016-07-05 | AD16371 | ND |
| 2016-07-05 | AD16292 | ND |
| 2016-08-02 | AD19618 | ND |
| 2016-08-02 | AD19523 | ND |
| 2016-09-06 | AD23933 | ND |
| 2016-09-06 | AD23873 | ND |
| 2016-10-04 | AD27386 | ND |
| 2016-10-04 | AD27268 | ND |
| 2016-11-01 | AD30785 | ND |
| 2016-11-01 | AD30709 | ND |
| 2016-12-06 | AD34700 | ND |
| 2016-12-06 | AD34602 | ND |
| 2017-01-03 | AD37639 | ND |
| 2017-01-03 | AD37582 | ND |
| 2017-02-07 | AD41515 | ND |
| 2017-02-07 | AD41441 | ND |
| 2017-03-07 | AD44703 | ND |
| 2017-03-07 | AD44631 | ND |
| 2017-04-04 | AD48421 | ND |
| 2017-04-04 | AD48361 | ND |
| 2017-05-02 | AD51934 | ND |
| 2017-05-02 | AD51900 | ND |
| 2017-06-06 | AD55795 | ND |
| 2017-06-06 | AD55706 | ND |
| 2017-07-05 | AD58950 | ND |
| 2017-07-05 | AD58855 | ND |
| 2017-08-01 | AD62205 | ND |
| 2017-08-01 | AD62173 | ND |
| 2017-09-05 | AD66711 | ND |
| 2017-09-05 | AD66607 | ND |
| 2017-10-10 | AD70851 | ND |
| 2017-10-10 | AD70841 | ND |
| 2017-11-07 | AD73997 | ND |
| 2017-11-07 | AD73972 | ND |
| 2017-12-05 | AD76813 | ND |
| 2017-12-05 | AD76792 | ND |
| 2018-01-09 | AD80334 | ND |
| 2018-01-09 | AD80286 | ND |
| 2018-02-06 | AD83444 | ND |
| 2018-03-06 | E18003207001 | ND |
| 2018-03-08 | E18003251001 | ND |
| 2018-03-13 | AD88063 | ND |
| 2018-04-03 | AD90607 | ND |
| 2018-04-17 | AD92357 | ND |
| 2018-05-01 | AD94158 | ND |
| 2018-05-01 | AD94135 | ND |
| 2018-06-05 | AD98061 | ND |
| 2018-06-05 | AD98038 | ND |
| 2018-07-03 | AE01426 | ND |
| 2018-07-03 | AE01408 | ND |
| 2018-08-07 | AE05470 | ND |
| 2018-08-07 | AE05504 | ND |
| 2018-09-04 | AE08763 | ND |
| 2018-09-04 | AE08744 | ND |
| 2018-10-09 | AE12972 | ND |
| 2018-10-09 | AE13045 | ND |
| 2018-11-05 | AE16257 | ND |
| 2018-11-05 | AE16227 | ND |
| 2018-12-03 | AE19320 | ND |
| 2018-12-03 | AE19275 | ND |
| 2019-01-08 | AE23273 | ND |
| 2019-01-08 | AE23251 | ND |
| 2019-01-28 | E1900296001 | ND |
| 2019-02-05 | AE26363 | ND |
| 2019-02-05 | AE26405 | ND |
| 2019-03-05 | AE29416 | ND |
| 2019-03-05 | AE29386 | ND |
| 2019-04-02 | AE32624 | ND |
| 2019-04-02 | AE32601 | ND |
| 2019-05-07 | AE36876 | ND |
| 2019-05-07 | AE36846 | ND |
| 2019-06-04 | AE40531 | ND |
| 2019-06-04 | AE40500 | ND |
| 2019-06-18 | E19004351001 | ND |
| 2019-07-02 | AE44068 | ND |
| 2019-07-02 | AE44044 | ND |
| 2019-08-06 | AE48188 | ND |
| 2019-08-06 | AE48121 | ND |
| 2019-09-03 | AE51364 | ND |
| 2019-09-03 | AE51335 | ND |
| 2019-10-01 | AE54479 | ND |
| 2019-10-01 | AE54476 | ND |
| 2019-11-05 | AE58313 | ND |
| 2019-11-19 | AE59864 | ND |
| 2019-12-03 | AE61206 | ND |
| 2019-12-03 | AE61294 | ND |