1,2,4-Trichlorobenzene
Danbury Water Department
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 |
---|---|---|---|---|
2014 | ND | 2 | 0 | ND |
2015 | ND | 2 | 0 | ND |
2016 | ND | 2 | 0 | ND |
2017 | ND | 2 | 0 | ND |
2018 | ND | 2 | 0 | ND |
2019 | ND | 2 | 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 | E402994-5VOC | ND |
2014-02-18 | E402994-6VOC | ND |
2015-04-21 | E504H71-2VOC | ND |
2015-04-21 | E504H71-1VOC | ND |
2016-04-19 | E604J01-5VOC | ND |
2016-04-19 | E604J01-6VOC | ND |
2017-02-15 | 194887GE | ND |
2017-02-15 | 194886GE | ND |
2018-02-21 | 210745GE | ND |
2018-02-21 | 210744GE | ND |
2019-08-15 | VOC1 200545121 | ND |
2019-08-15 | VOC1 200545122 | ND |