Permethrin
Arlington Water Department
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 |
|---|---|---|---|---|
| 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 | 5 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-07-11 | 18-25566-51874 | ND |
| 2018-07-11 | 18-25568-51878 | ND |
| 2018-07-11 | 18-25558-51856 | ND |
| 2018-10-17 | 18-39507-80200 | ND |
| 2018-10-17 | 18-39507-80201 | ND |
| 2019-01-09 | 19-00934-2152 | ND |
| 2019-01-09 | 19-00948-2172 | ND |
| 2019-01-09 | 19-00966-2198 | ND |
| 2019-04-02 | 19-11053-22593 | ND |
| 2019-04-02 | 19-11053-22594 | ND |