p-Dichlorobenzene
Norwich Public Utilities
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 | 3 | 0 | ND |
| 2015 | ND | 3 | 0 | ND |
| 2016 | ND | 3 | 0 | ND |
| 2017 | ND | 3 | 0 | ND |
| 2018 | ND | 3 | 0 | ND |
| 2019 | ND | 3 | 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 |
|---|---|---|
| 2014-05-01 | 6300210VOC1 | ND |
| 2014-05-01 | 6300211VOC1 | ND |
| 2014-05-01 | 6300209VOC1 | ND |
| 2015-08-19 | 6301190VOC1 | ND |
| 2015-08-19 | 6301191VOC1 | ND |
| 2015-08-19 | 6301192VOC1 | ND |
| 2016-11-17 | 6302524VOC1 | ND |
| 2016-11-17 | 6302525VOC1 | ND |
| 2016-11-17 | 6302526VOC1 | ND |
| 2017-06-15 | PH-0453-6303177V | ND |
| 2017-06-15 | PH-0453-6303179V | ND |
| 2017-06-15 | PH-0453-6303178V | ND |
| 2018-09-18 | PH-0453-6304496V | ND |
| 2018-09-18 | PH-0453-6304497V | ND |
| 2018-10-03 | PH-0453-6304498V | ND |
| 2019-08-29 | PH-0453-6305609V | ND |
| 2019-08-29 | PH-0453-6305611V | ND |
| 2019-09-16 | PH-0453-6305610V | ND |