Permethrin
City of Forest Grove
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.
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 | N/A | 0 | 0 | N/A |
2019 | ND | 8 | 0 | ND |
ppb = parts per billion
All test results
Date | Lab ID | Result |
---|---|---|
2019-01-08 | A9A1683-01 | ND |
2019-01-08 | A9A1683-02 | ND |
2019-04-16 | 35462309001SEA2 | ND |
2019-04-16 | 35462309002SEA2 | ND |
2019-07-08 | 35480346001SEA3 | ND |
2019-07-08 | 35480346002SEA3 | ND |
2019-10-29 | 35508346001SEA4 | ND |
2019-10-29 | 35508346002SEA4 | ND |