2,4,5-T
City of Houston Willow Chase
2,4,5-Trichlorophenoxyacetic acid (2,4,5-T) is a herbicide banned in the U.S. since 1985. It was formerly used on residential and commercial lawns, and occasionally on food crops. 2,4,5-T contained the impurity dioxin, which is highly toxic to people and wildlife.
8
Samples
0
Samples exceeding legal limit (MCL)
0
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | ND | 4 | 0 | ND |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | ND | 4 | 0 | ND |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-03-06 | AC46021 | ND |
| 2014-03-06 | AC46022 | ND |
| 2014-03-06 | AC46023 | ND |
| 2014-05-20 | AC54692 | ND |
| 2017-03-02 | AD73242 | ND |
| 2017-03-02 | AD73243 | ND |
| 2017-05-31 | AD86216 | ND |
| 2017-05-31 | AD86225 | ND |