o-Dichlorobenzene
Hawaii Volcanoes Nat.park
o-Dichlorobenzene is used as a chemical intermediate for making agricultural herbicides. It is toxic to the liver, kidneys and the nervous system, and causes cancer in animal studies.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | ND | 1 | 0 | ND |
2015 | ND | 3 | 0 | ND |
2016 | ND | 2 | 0 | ND |
2017 | ND | 1 | 0 | ND |
2018 | ND | 1 | 0 | ND |
2019 | ND | 1 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 600 ppb
The EWG Health Guideline of 600 ppb for o-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 harm to internal organs.
EPA Maximum Contaminant
Level (MCL) 600 ppb
The legal limit for o-dichlorobenzene, established in 1991, was based on a toxicity study in laboratory animals conducted in the 1970s.
ppb = parts per billion
All test results
Date | Lab ID | Result |
---|---|---|
2014-04-02 | C14-04-0071A | ND |
2015-09-09 | C15-09-0077A | ND |
2015-10-05 | C15-10-0006A | ND |
2015-10-05 | C15-10-0007A | ND |
2016-04-06 | ND | |
2016-07-13 | ND | |
2017-04-11 | ND | |
2018-11-07 | 8K08038-01 | ND |
2019-06-19 | C19-06-0093A | ND |