Permethrin
DCWA Knightsville
Permethrin is an insecticide used on agricultural crops, but most uses are non-agricultural. It can be applied to residential areas to control mosquitoes and ticks and also used as a bug repellent on clothing, as well as medical applications to treat head lice. Long-term exposure to permethrin may harm the liver.
11
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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | N/A | 0 | 0 | N/A |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | ND | 5 | 0 | ND |
| 2019 | ND | 6 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-08-27 | 4040895 | ND |
| 2018-08-27 | 4041268 | ND |
| 2018-08-27 | 4041149 | ND |
| 2018-11-14 | 4124678 | ND |
| 2018-11-14 | 4124664 | ND |
| 2019-02-26 | 4209993 | ND |
| 2019-02-26 | 4210020 | ND |
| 2019-02-26 | 4210150 | ND |
| 2019-02-26 | 4210493 | ND |
| 2019-02-26 | 4210086 | ND |
| 2019-05-21 | 4303126 | ND |