1,2,4-Trichlorobenzene
South Island PSD
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 | 12 | 0 | ND |
2015 | N/A | 0 | 0 | N/A |
2016 | N/A | 0 | 0 | N/A |
2017 | N/A | 0 | 0 | N/A |
2018 | N/A | 0 | 0 | N/A |
2019 | N/A | 0 | 0 | N/A |
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 |
---|---|---|
2014-02-04 | AD35237 | ND |
2014-02-04 | AD35251 | ND |
2014-02-04 | AD35252 | ND |
2014-02-04 | AD35253 | ND |
2014-02-10 | AD35468 | ND |
2014-02-10 | AD35474 | ND |
2014-02-10 | AD35475 | ND |
2014-02-10 | AD35476 | ND |
2014-04-14 | AD38360 | ND |
2014-04-14 | AD38363 | ND |
2014-04-14 | AD38374 | ND |
2014-04-14 | AD38376 | ND |