o-Dichlorobenzene
City of Rosenberg
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 | 5 | 0 | ND |
2016 | ND | 4 | 0 | ND |
2017 | ND | 5 | 0 | ND |
2018 | ND | 5 | 0 | ND |
2019 | ND | 3 | 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 |
---|---|---|
2014-01-21 | AC39520 | ND |
2015-03-25 | AC86068 | ND |
2015-03-25 | AC86064 | ND |
2015-03-25 | AC86066 | ND |
2015-03-25 | AC86058 | ND |
2015-05-05 | AC90568 | ND |
2016-01-26 | AD20142 | ND |
2016-01-26 | AD20114 | ND |
2016-01-26 | AD20110 | ND |
2016-01-26 | AD20136 | ND |
2017-03-14 | AD74917 | ND |
2017-03-14 | AD74885 | ND |
2017-03-14 | AD74943 | ND |
2017-05-31 | AD86151 | ND |
2017-05-31 | AD86153 | ND |
2018-03-05 | AE16646 | ND |
2018-03-05 | AE16648 | ND |
2018-03-05 | AE16654 | ND |
2018-03-05 | AE16660 | ND |
2018-05-21 | AE27018 | ND |
2019-04-02 | AE60873 | ND |
2019-04-02 | AE60883 | ND |
2019-04-02 | AE60877 | ND |