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EWG's Tap Water Database — 2021 UPDATE

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Permethrin

New York City System

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.

 

14

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014N/A00N/A
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018ND100ND
2019ND40ND

ppb = parts per billion

All test results

Date Lab ID Result
2018-06-19201806200370ND
2018-06-19201806200371ND
2018-08-07201808090003ND
2018-08-21201808230004ND
2018-08-23201808240653ND
2018-08-23201808240654ND
2018-11-07201811090451ND
2018-11-07201811090452ND
2018-11-07201811090453ND
2018-11-07201811090454ND
2019-02-05201902060424ND
2019-02-05201902060425ND
2019-02-05201902060426ND
2019-02-05201902060427ND