1,2,4-Trichlorobenzene
City of Gulfport
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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | ND | 14 | 0 | ND |
| 2015 | ND | 13 | 0 | ND |
| 2016 | ND | 10 | 0 | ND |
| 2017 | ND | 12 | 0 | ND |
| 2018 | ND | 12 | 0 | ND |
| 2019 | ND | 11 | 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 |
|---|---|---|
| 2014-01-21 | 140122-024VO | ND |
| 2014-01-21 | 140122-002VO | ND |
| 2014-01-21 | 140122-001VO | ND |
| 2014-04-17 | 140418-003VO | ND |
| 2014-04-17 | 140418-002VO | ND |
| 2014-04-17 | 140418-001VO | ND |
| 2014-06-11 | 140612-009VO | ND |
| 2014-06-11 | 140612-008VO | ND |
| 2014-08-13 | 140814-005VO | ND |
| 2014-08-13 | 140814-003VO | ND |
| 2014-08-13 | 140814-004VO | ND |
| 2014-10-15 | 141016-016VO | ND |
| 2014-10-15 | 141016-015VO | ND |
| 2014-10-15 | 141016-014VO | ND |
| 2015-02-24 | 150225-011VO | ND |
| 2015-02-24 | 150225-010VO | ND |
| 2015-02-24 | 150225-009VO | ND |
| 2015-04-23 | 150424-009VO | ND |
| 2015-04-23 | 150424-007VO | ND |
| 2015-04-23 | 150424-008VO | ND |
| 2015-07-01 | 150702-002VO | ND |
| 2015-07-23 | 150724-007VO | ND |
| 2015-07-23 | 150724-006VO | ND |
| 2015-07-23 | 150724-005VO | ND |
| 2015-10-27 | 151028-010VO | ND |
| 2015-10-27 | 151028-009VO | ND |
| 2015-10-27 | 151028-008VO | ND |
| 2016-02-24 | 160225-004VO | ND |
| 2016-02-24 | 160225-003VO | ND |
| 2016-02-24 | 160225-002VO | ND |
| 2016-05-17 | 160518-026VO | ND |
| 2016-05-17 | 160518-025VO | ND |
| 2016-05-17 | 160518-024VO | ND |
| 2016-07-19 | 160720-002VO | ND |
| 2016-07-19 | 160720-003VO | ND |
| 2016-07-19 | 160720-001VO | ND |
| 2016-12-06 | 161207-003VO | ND |
| 2017-02-27 | 170228-020VO | ND |
| 2017-02-27 | 170228-019VO | ND |
| 2017-02-27 | 170228-018VO | ND |
| 2017-05-18 | 170519-003VO | ND |
| 2017-05-18 | 170519-002VO | ND |
| 2017-05-18 | 170519-001VO | ND |
| 2017-07-26 | 170727-002VO | ND |
| 2017-07-26 | 170727-001VO | ND |
| 2017-07-26 | 170727-003VO | ND |
| 2017-11-02 | 171103-004VO | ND |
| 2017-11-02 | 171103-003VO | ND |
| 2017-11-02 | 171103-002VO | ND |
| 2018-01-24 | 180125-010VO | ND |
| 2018-01-24 | 180125-009VO | ND |
| 2018-01-24 | 180125-008VO | ND |
| 2018-04-23 | 180424-002VO | ND |
| 2018-04-23 | 180424-001VO | ND |
| 2018-04-23 | 180424-003VO | ND |
| 2018-08-06 | 180807-003VO | ND |
| 2018-08-06 | 180807-002VO | ND |
| 2018-08-06 | 180807-001VO | ND |
| 2018-10-09 | 181010-024VO | ND |
| 2018-10-09 | 181010-023VO | ND |
| 2018-10-09 | 181010-022VO | ND |
| 2019-02-20 | 190221-002VO | ND |
| 2019-02-20 | 190221-001VO | ND |
| 2019-02-20 | 190221-003VO | ND |
| 2019-04-22 | 190423-008VO | ND |
| 2019-04-22 | 190423-007VO | ND |
| 2019-04-22 | 190423-006VO | ND |
| 2019-08-07 | 190808-011VO | ND |
| 2019-08-07 | 190808-010VO | ND |
| 2019-08-07 | 190808-009VO | ND |
| 2019-10-29 | 191030-012VO | ND |
| 2019-10-29 | 191030-013VO | ND |