1,2,4-Trichlorobenzene
North Kona
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 | 9 | 0 | ND |
2015 | ND | 3 | 0 | ND |
2016 | ND | 2 | 0 | ND |
2017 | ND | 8 | 0 | ND |
2018 | ND | 4 | 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 |
---|---|---|
2014-03-18 | C14-03-0113A | ND |
2014-03-18 | C14-03-0114A | ND |
2014-03-18 | C14-03-0115A | ND |
2014-03-18 | C14-03-0116A | ND |
2014-03-18 | C14-03-0117A | ND |
2014-03-18 | C14-03-0118A | ND |
2014-03-18 | C14-03-0119A | ND |
2014-03-18 | C14-03-0120A | ND |
2014-03-18 | C14-03-0112A | ND |
2015-07-20 | C15-07-0346A | ND |
2015-08-19 | 201508150137 | ND |
2015-11-18 | 201508150170 | ND |
2016-03-09 | ND | |
2016-04-04 | ND | |
2017-03-14 | ND | |
2017-03-14 | ND | |
2017-03-14 | ND | |
2017-03-14 | ND | |
2017-03-14 | ND | |
2017-03-14 | ND | |
2017-09-11 | ND | |
2017-09-11 | ND | |
2018-08-13 | 201808151089 | ND |
2018-11-27 | 201811300217 | ND |
2018-12-03 | C18-12-0009A | ND |
2018-12-03 | C18-12-0010A | ND |
2019-04-15 | C19-04-0100A | ND |
2019-09-09 | 201909100461 | ND |