1,2,4-Trichlorobenzene
Carroll County
1,2,4-Trichlorobenzene is an industrial solvent that can harm the adrenal glands and may increase the risk of cancer.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | ND | 4 | 0 | ND |
2015 | ND | 1 | 0 | ND |
2016 | ND | 1 | 0 | ND |
2017 | ND | 4 | 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 5 ppb
The EWG Health Guideline of 5 ppb for 1,2,4-trichlorobenzene 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 hormone disruption.
EPA Maximum Contaminant
Level (MCL) 70 ppb
The legal limit for 1,2,4-trichlorobenzene, established in 1992, was based on a toxicity study in laboratory animals conducted in 1981. This limit may not fully protect against hormone disruption.
ppb = parts per billion
All test results
Date | Lab ID | Result |
---|---|---|
2014-02-18 | AI28176 | ND |
2014-02-18 | AI28177 | ND |
2014-05-15 | AI40669 | ND |
2014-05-15 | AI40670 | ND |
2015-02-03 | AI63966 | ND |
2016-02-02 | AJ05496 | ND |
2017-03-28 | AJ49069 | ND |
2017-03-28 | AJ49070 | ND |
2017-03-28 | AJ49071 | ND |
2017-03-28 | AJ49072 | ND |
2018-01-29 | AJ78039 | ND |
2019-02-20 | AK11673 | ND |