Permethrin
City of Spokane
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.
10
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 |
|---|---|---|---|---|
| 2018 | ND | 10 | 0 | ND |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | N/A | 0 | 0 | N/A |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-01-30 | 201802020206 | ND |
| 2018-01-30 | 201802020207 | ND |
| 2018-01-30 | 201802020208 | ND |
| 2018-01-30 | 201802020209 | ND |
| 2018-01-30 | 201802020210 | ND |
| 2018-07-17 | 18-26536-53791 | ND |
| 2018-07-17 | 18-26536-53789 | ND |
| 2018-07-17 | 18-26536-53787 | ND |
| 2018-07-17 | 18-26536-53785 | ND |
| 2018-07-17 | 18-26536-53783 | ND |