Permethrin
City of Ukiah
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.
11
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 | 7 | 0 | ND |
| 2019 | ND | 4 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-05-30 | 201805310629 | ND |
| 2018-05-31 | 201806010699 | ND |
| 2018-07-12 | 201807130762 | ND |
| 2018-07-12 | 201807130767 | ND |
| 2018-07-18 | 201807190863 | ND |
| 2018-07-18 | 201807190858 | ND |
| 2018-10-03 | 201810040576 | ND |
| 2019-06-12 | 201906130470 | ND |
| 2019-06-12 | 201906130391 | ND |
| 2019-06-12 | 201906130437 | ND |
| 2019-06-26 | 201906270261 | ND |