1,2,4-Trichlorobenzene
City of California City
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 | 5 | 0 | ND |
2015 | N/A | 0 | 0 | N/A |
2016 | ND | 1 | 0 | ND |
2017 | ND | 5 | 0 | ND |
2018 | N/A | 0 | 0 | N/A |
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 |
---|---|---|
2014-08-25 | 5806-005-1400 | ND |
2014-08-25 | 5806-006-1320 | ND |
2014-08-25 | 5806-008-1345 | ND |
2014-08-25 | 5806-009-1310 | ND |
2014-08-25 | 5806-016-1335 | ND |
2016-12-15 | 5806-003-0920 | ND |
2017-08-01 | 5806-005-1100 | ND |
2017-08-01 | 5806-006-1135 | ND |
2017-08-01 | 5806-008-1000 | ND |
2017-08-01 | 5806-009-1030 | ND |
2017-08-01 | 5806-016-0925 | ND |
2019-11-19 | 5806-003-1000 | ND |