Permethrin
Northwest Harris County MUD 5
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.
10
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 | 2 | 0 | ND |
| 2019 | ND | 8 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-12-17 | Q1851903001 | ND |
| 2018-12-17 | Q1851903003 | ND |
| 2019-03-26 | Q1912379001 | ND |
| 2019-04-16 | Q1915243002 | ND |
| 2019-04-16 | Q1915243003 | ND |
| 2019-06-18 | Q1937263001 | ND |
| 2019-06-18 | Q1937263002 | ND |
| 2019-06-18 | Q1937263003 | ND |
| 2019-06-18 | Q1937263004 | ND |
| 2019-09-24 | Q1968372001 | ND |