1,2,4-Trichlorobenzene
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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 | 4 | 0 | ND |
2015 | N/A | 0 | 0 | N/A |
2016 | N/A | 0 | 0 | N/A |
2017 | N/A | 0 | 0 | N/A |
2018 | ND | 5 | 0 | ND |
2019 | ND | 3 | 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 |
---|---|---|
2014-02-26 | LLF10348 | ND |
2014-06-30 | LLF24951 | ND |
2014-09-22 | LLF39454 | ND |
2014-12-16 | LLF49749 | ND |
2018-09-04 | LLI02871 | ND |
2018-09-27 | LLI08551 | ND |
2018-10-08 | LLI10378 | ND |
2018-10-23 | LLI12468 | ND |
2018-10-23 | LLI12469 | ND |
2019-03-20 | LLI29899 | ND |
2019-06-04 | LLI40689 | ND |
2019-10-07 | LLI69359 | ND |