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The behaviour of pyrethroids indoors: A model study

 
: Berger-Preiß, E.; Preiß, A.; Sielaff, K.; Raabe, M.; Ilgen, B.; Levsen, K.

Indoor Air 7 (1997), No.4, pp.248-261
ISSN: 0905-6947
ISSN: 1600-0668
English
Journal Article
Fraunhofer ITA ( ITEM) ()
decontamination; insecticides; pyrethroids; particle; dust; pyrethrin

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.

: http://publica.fraunhofer.de/documents/B-71854.html