p-Dichlorobenzene
Lower Rio Grande Public Water Works Authority
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.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | ND | 8 | 0 | ND |
2015 | ND | 1 | 0 | ND |
2016 | ND | 1 | 0 | ND |
2017 | ND | 7 | 0 | ND |
2018 | N/A | 0 | 0 | N/A |
2019 | N/A | 0 | 0 | N/A |
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 |
---|---|---|
2014-02-25 | 1402B04-001A | ND |
2014-02-25 | 1402A91-001A | ND |
2014-02-25 | 1402A95-001A | ND |
2014-02-25 | 1402A93-001A | ND |
2014-02-25 | 1402A94-001A | ND |
2014-02-25 | 1402A96-001A | ND |
2014-03-05 | 1403671-001A | ND |
2014-10-16 | 1410856-001A | ND |
2015-11-12 | 1511655-001A | ND |
2016-03-10 | 1603914-001A | ND |
2017-09-13 | 1709759-001 | ND |
2017-09-13 | 1709758-001 | ND |
2017-09-13 | 1709757-001 | ND |
2017-09-13 | 1709756-001 | ND |
2017-09-13 | 1709777-001 | ND |
2017-09-13 | 1709755-001 | ND |
2017-09-13 | 1709754-001 | ND |