1,2,4-Trichlorobenzene
Ahoskie, Town of
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 |
|---|---|---|---|---|
| 2014 | ND | 7 | 0 | ND |
| 2015 | ND | 9 | 0 | ND |
| 2016 | ND | 5 | 0 | ND |
| 2017 | ND | 3 | 0 | ND |
| 2018 | ND | 3 | 0 | ND |
| 2019 | ND | 4 | 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 |
|---|---|---|
| 2014-01-13 | 8273-011314-E05V | ND |
| 2014-04-14 | 8273-041414-004V | ND |
| 2014-04-14 | 8273-041414-E05V | ND |
| 2014-07-14 | 8273-071414-001V | ND |
| 2014-07-14 | 8273-071414-E05V | ND |
| 2014-10-20 | 8273-102014-001V | ND |
| 2014-10-20 | 8273-102014-E05V | ND |
| 2015-01-13 | ND | |
| 2015-01-13 | ND | |
| 2015-04-27 | ND | |
| 2015-04-27 | ND | |
| 2015-04-27 | ND | |
| 2015-07-13 | ND | |
| 2015-07-13 | ND | |
| 2015-10-20 | ND | |
| 2015-10-20 | ND | |
| 2016-02-22 | 8273-022216-E05V | ND |
| 2016-04-11 | 8273-041116-001V | ND |
| 2016-04-11 | 8273-041116-004V | ND |
| 2016-06-27 | 8273-062716-E05V | ND |
| 2016-07-19 | 8273-071916-003V | ND |
| 2017-04-24 | 8273-042417-004V | ND |
| 2017-04-24 | 8273-042417-001V | ND |
| 2017-06-26 | 8273-062617-E05V | ND |
| 2018-04-18 | 8273-041818-001V | ND |
| 2018-04-18 | 8273-041818-004V | ND |
| 2018-06-20 | 8273-062018-E05V | ND |
| 2019-04-22 | 8273-042219-001V | ND |
| 2019-04-22 | 8273-042219-003V | ND |
| 2019-04-22 | 8273-042219-004V | ND |
| 2019-04-22 | 8273-042219-E05V | ND |