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1997
Journal Article
Titel
The behaviour of pyrethroids indoors: A model study
Abstract
Pest control agents containing three different formulations of the pyrethroids permethrin and deltamethrin and/or pyrethrines and the synergist piperonyl butoxide were applied in a model house simulating indoor pest control. The concentrations of the agents were monitored in the gas phase, on suspended particles, house dust and on furniture surfaces over a period of 24 months. Permethrin and deltamethrin were detected only in the gas phase immediately after application of the agents. High concentrations of deltamethrin (~2 u/m[3]) and permethrin (~40 u/m[3]) were found on suspended particles directly after application. This concentration decreased rapidly within two days (deltamethrin ~5 ng/m[3], permethrin ~100 ng/m[3]) but much more slowly during the following 24 months.
Language
English