Permethrin
City of Davis
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.
19
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 | ND | 19 | 0 | ND |
| 2019 | N/A | 0 | 0 | N/A |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-03-14 | A8B2310-02 | ND |
| 2018-03-14 | A8B2310-09 | ND |
| 2018-03-14 | A8B2310-08 | ND |
| 2018-03-14 | A8B2310-07 | ND |
| 2018-03-14 | A8B2310-06 | ND |
| 2018-03-14 | A8B2310-05 | ND |
| 2018-03-14 | A8B2310-03 | ND |
| 2018-03-14 | A8B2310-01 | ND |
| 2018-04-25 | A8D0837-01 | ND |
| 2018-06-13 | A8E3204-01 | ND |
| 2018-09-12 | A8H1575-04 | ND |
| 2018-09-12 | A8H1575-02 | ND |
| 2018-09-12 | A8H1575-05 | ND |
| 2018-09-12 | A8H1575-06 | ND |
| 2018-09-12 | A8H1575-01 | ND |
| 2018-09-12 | A8H1578-01 | ND |
| 2018-09-12 | A8H1575-07 | ND |
| 2018-09-26 | A8I1124-01 | ND |
| 2018-12-12 | A8K0303-01 | ND |