Permethrin
City of Sunnyvale
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.
20
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 | 20 | 0 | ND |
| 2019 | N/A | 0 | 0 | N/A |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-02-21 | A8B0871-01 | ND |
| 2018-02-21 | A8B0871-02 | ND |
| 2018-02-21 | A8B0871-03 | ND |
| 2018-02-21 | A8B0871-04 | ND |
| 2018-02-21 | A8B0871-08 | ND |
| 2018-02-21 | A8B0871-05 | ND |
| 2018-02-21 | A8B0871-06 | ND |
| 2018-02-21 | A8B0871-07 | ND |
| 2018-05-09 | A8D1780-02 | ND |
| 2018-05-09 | A8D1780-01 | ND |
| 2018-08-15 | A8G2182-01 | ND |
| 2018-08-15 | A8G2182-08 | ND |
| 2018-08-15 | A8G2182-07 | ND |
| 2018-08-15 | A8G2182-06 | ND |
| 2018-08-15 | A8G2182-05 | ND |
| 2018-08-15 | A8G2182-04 | ND |
| 2018-08-15 | A8G2182-03 | ND |
| 2018-08-15 | A8G2182-02 | ND |
| 2018-11-14 | A8J2084-01 | ND |
| 2018-12-18 | A8L1093-01 | ND |