1,2,4-Trichlorobenzene
Morrisville State College
1,2,4-Trichlorobenzene is an industrial solvent that can harm the adrenal glands and may increase the risk of cancer.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | ND | 3 | 0 | ND |
| 2019 | ND | 3 | 0 | ND |
| 2020 | ND | 3 | 0 | ND |
| 2021 | ND | 3 | 0 | ND |
| 2022 | ND | 3 | 0 | ND |
| 2023 | ND | 4 | 0 | ND |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
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 |
|---|---|---|
| 2018-11-08 | 11081802C | ND |
| 2018-11-08 | 11081803C | ND |
| 2018-11-08 | 11081801C | ND |
| 2019-10-17 | 10171905CPOC | ND |
| 2019-10-17 | 10171907CPOC | ND |
| 2019-10-17 | 10171906CPOC | ND |
| 2020-10-07 | 10072005CPOC | ND |
| 2020-10-07 | 10072004CPOC | ND |
| 2020-10-07 | 10072003CPOC | ND |
| 2021-11-04 | 11042103C | ND |
| 2021-11-04 | 11042104C | ND |
| 2021-11-04 | 11042102C | ND |
| 2022-11-09 | 11092203C | ND |
| 2022-11-09 | 11092202C | ND |
| 2022-11-09 | 11092201C | ND |
| 2023-06-21 | EHS2300034560POC | ND |
| 2023-12-07 | 12072304C | ND |
| 2023-12-07 | 12072302C | ND |
| 2023-12-07 | 12072303C | ND |