Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9925414 | International Journal of Hygiene and Environmental Health | 2005 | 7 Pages |
Abstract
In general, an appropriately performed PCO lead to an increase of pyrethroids in house dust as well as in PM, in some cases up to 1 year after application. One day after the application the cyfluthrin concentration increased significantly from 0.25 (T1) to 33.8Â mg/kg house dust (T2) and up to 4.9Â ng/m3 in PM. The permethrin concentration increased significantly from 4.3 to 70Â mg/kg in house dust and up to 18.1Â ng/m3 in PM, deltamethrin increased to 54.5Â mg/kg and 20.8Â ng/m3 and cypermethrin to 14Â mg/kg and 45.7Â ng/m3. Thereafter a continuous decrease could be observed during the time course of 1 year. After 1 year the permethrin concentration in house dust was still 1/5 of the T2 concentration, whereas for cypermethrin and cyfluthrin only 1/14 and 1/23 of the T2 concentration were found. Deltamethrin was not detected at all after T2. Moreover, the data of this study showed significant, positive correlations between pyrethroids in house dust and in airborne particles especially one day after PCO.
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Authors
Gabriele Leng, Edith Berger-PreiÃ, Karsten Levsen, Ulrich Ranft, Dorothee Sugiri, Wolfgang Hadnagy, Helga Idel,