Permethrin
City of Olympia
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.
12
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 | N/A | 0 | 0 | N/A |
| 2019 | ND | 12 | 0 | ND |
| 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 |
|---|---|---|
| 2019-04-16 | 19-13622-27606 | ND |
| 2019-04-16 | 19-13622-27608 | ND |
| 2019-04-16 | 19-13622-27610 | ND |
| 2019-04-16 | 19-13622-27612 | ND |
| 2019-04-16 | 19-13622-27614 | ND |
| 2019-04-16 | 19-13622-27616 | ND |
| 2019-12-04 | 19-46399-89801 | ND |
| 2019-12-04 | 19-46399-89802 | ND |
| 2019-12-04 | 19-46399-89803 | ND |
| 2019-12-04 | 19-46399-89804 | ND |
| 2019-12-04 | 19-46399-89805 | ND |
| 2019-12-04 | 19-46399-89806 | ND |