2,4,5-T
City of Spokane
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.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | ND | 5 | 0 | ND |
2015 | ND | 8 | 0 | ND |
2016 | N/A | 0 | 0 | N/A |
2017 | ND | 10 | 0 | ND |
2018 | ND | 7 | 0 | ND |
2019 | N/A | 0 | 0 | N/A |
ppb = parts per billion
All test results
Date | Lab ID | Result |
---|---|---|
2014-07-29 | 00947 | ND |
2014-07-29 | 00946 | ND |
2014-07-29 | 00945 | ND |
2014-10-28 | 54250 | ND |
2014-12-02 | 55190 | ND |
2015-04-28 | 59499 | ND |
2015-07-28 | 63239 | ND |
2015-07-28 | 63246 | ND |
2015-07-28 | 63258 | ND |
2015-07-28 | 63244 | ND |
2015-10-27 | 67368 | ND |
2015-10-27 | 67369 | ND |
2015-10-27 | 67367 | ND |
2017-07-25 | ND | |
2017-07-25 | ND | |
2017-07-25 | ND | |
2017-07-25 | ND | |
2017-10-24 | ND | |
2017-10-24 | ND | |
2017-10-24 | ND | |
2017-10-24 | ND | |
2017-10-24 | ND | |
2017-10-24 | ND | |
2018-07-17 | ND | |
2018-07-17 | ND | |
2018-07-17 | ND | |
2018-07-17 | ND | |
2018-10-30 | ND | |
2018-10-30 | ND | |
2018-10-30 | ND |