1,2,4-Trichlorobenzene
Brooklyn Center
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 | 4 | 0 | ND |
| 2019 | ND | 5 | 0 | ND |
| 2020 | ND | 4 | 0 | ND |
| 2021 | ND | 4 | 0 | ND |
| 2022 | ND | 2 | 0 | ND |
| 2023 | ND | 1 | 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 |
|---|---|---|
| 2018-03-20 | 18C0777-01 | ND |
| 2018-05-10 | 18E0933-01 | ND |
| 2018-08-28 | 18H2338-01 | ND |
| 2018-12-10 | 18L0350-01 | ND |
| 2019-01-28 | 19A0888-01 | ND |
| 2019-04-17 | 19D1039-01 | ND |
| 2019-07-22 | 19G1532-01 | ND |
| 2019-07-22 | 19G1532-02 | ND |
| 2019-10-17 | 19J1047-01 | ND |
| 2020-01-08 | 20A0232-01 | ND |
| 2020-05-20 | 20E1218-01 | ND |
| 2020-07-28 | 20G2028-01 | ND |
| 2020-10-27 | 20J1364-02 | ND |
| 2021-01-26 | 21A0743-01 | ND |
| 2021-04-29 | 21D1872-01 | ND |
| 2021-07-22 | 21G1451-01 | ND |
| 2021-12-06 | 21L0280-01 | ND |
| 2022-01-26 | 22A0926-01 | ND |
| 2022-04-13 | 22D0638-01 | ND |
| 2023-03-16 | 23C0821-01 | ND |