p-Dichlorobenzene
City of La Porte
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 | 1 | 0 | ND |
| 2015 | ND | 6 | 0 | ND |
| 2016 | ND | 6 | 0 | ND |
| 2017 | ND | 6 | 0 | ND |
| 2018 | ND | 6 | 0 | ND |
| 2019 | ND | 6 | 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 |
|---|---|---|
| 2014-03-19 | AC47589 | ND |
| 2015-01-26 | AC77607 | ND |
| 2015-01-26 | AC77593 | ND |
| 2015-01-26 | AC77591 | ND |
| 2015-01-26 | AC77595 | ND |
| 2015-01-26 | AC77583 | ND |
| 2015-01-26 | AC77585 | ND |
| 2016-01-20 | AD18950 | ND |
| 2016-01-20 | AD18946 | ND |
| 2016-01-20 | AD18962 | ND |
| 2016-01-20 | AD18988 | ND |
| 2016-01-20 | AD18968 | ND |
| 2016-04-12 | AD32819 | ND |
| 2017-01-18 | AD65403 | ND |
| 2017-01-18 | AD65383 | ND |
| 2017-01-18 | AD65399 | ND |
| 2017-01-18 | AD65401 | ND |
| 2017-01-18 | AD65377 | ND |
| 2017-01-18 | AD65407 | ND |
| 2018-01-29 | AE11024 | ND |
| 2018-01-29 | AE10994 | ND |
| 2018-01-29 | AE11056 | ND |
| 2018-01-29 | AE10996 | ND |
| 2018-01-29 | AE11048 | ND |
| 2018-01-29 | AE11032 | ND |
| 2019-01-09 | AE49193 | ND |
| 2019-01-09 | AE49199 | ND |
| 2019-01-09 | AE49203 | ND |
| 2019-01-09 | AE49195 | ND |
| 2019-01-09 | AE49197 | ND |
| 2019-01-09 | AE49201 | ND |