Permethrin
Chatsworth
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 |
---|---|---|---|---|
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 | ND | 2 | 0 | ND |
ppb = parts per billion
All test results
Date | Lab ID | Result |
---|---|---|
2018-02-07 | 3867278 | ND |
2018-02-07 | 3867269 | ND |
2018-02-12 | 3870112 | ND |
2018-02-12 | 3870528 | ND |
2018-02-12 | 3870101 | ND |
2018-02-14 | 3872720 | ND |
2018-05-01 | 3925845 | ND |
2018-05-01 | 3925856 | ND |
2018-05-01 | 3925737 | ND |
2018-05-08 | 3931354 | ND |
2018-05-22 | 3943326 | ND |
2018-08-07 | 4014601 | ND |
2018-08-07 | 4014451 | ND |
2018-08-07 | 4014612 | ND |
2018-08-07 | 4014405 | ND |
2018-08-08 | 4016173 | ND |
2018-08-09 | 4018612 | ND |
2018-11-05 | 4111200 | ND |
2018-11-05 | 4111267 | ND |
2018-11-13 | 4121286 | ND |
2019-01-21 | 4179276 | ND |
2019-01-21 | 4179281 | ND |