Permethrin
City of Frederick
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 |
|---|---|---|---|---|
| 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 | N/A | 0 | 0 | N/A |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2020-03-02 | 3089765001 | ND |
| 2020-03-02 | 3089765002 | ND |
| 2020-03-02 | 3089765003 | ND |
| 2020-06-10 | 3108335001 | ND |
| 2020-06-10 | 3108335002 | ND |
| 2020-06-10 | 3108335003 | ND |
| 2020-09-03 | 3126354001 | ND |
| 2020-09-03 | 3126354002 | ND |
| 2020-09-03 | 3126354003 | ND |
| 2020-12-07 | 3145483001 | ND |
| 2020-12-07 | 3145483002 | ND |
| 2020-12-07 | 3145483003 | ND |