1,2,4-Trichlorobenzene
City of Florence
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 | 1 | 0 | ND |
2016 | ND | 9 | 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 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 |
---|---|---|
2014-05-27 | AD40317 | ND |
2014-05-27 | AD40319 | ND |
2015-03-17 | AD53072 | ND |
2016-03-29 | AD73324 | ND |
2016-03-29 | AD73326 | ND |
2016-03-29 | AD73329 | ND |
2016-03-29 | AD73328 | ND |
2016-03-29 | AD73331 | ND |
2016-03-29 | AD73330 | ND |
2016-03-29 | AD73332 | ND |
2016-05-26 | AD76536 | ND |
2016-05-26 | AD76537 | ND |
2017-02-01 | AD89158 | ND |
2018-01-30 | AE06829 | ND |
2019-01-15 | AE24119 | ND |