Permethrin
City of San Clemente
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.
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 | N/A | 0 | 0 | N/A |
2019 | ND | 3 | 0 | ND |
ppb = parts per billion
All test results
Date | Lab ID | Result |
---|---|---|
2019-10-08 | 201910080582 | ND |
2019-10-08 | 201910080596 | ND |
2019-10-08 | 201910080597 | ND |
2020-01-08 | 202001080414 | ND |
2020-01-08 | 202001080413 | ND |
2020-04-01 | 202004010325 | ND |
2020-04-01 | 202004010309 | ND |
2020-04-01 | 202004010328 | ND |
2020-07-01 | 202007010636 | ND |
2020-07-01 | 202007010638 | ND |