Chemical characteristics of aerosol insecticide deposition in indoor surfaces |
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Authors: | Safia Zoubiri |
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Institution: | Laboratory of Functional Organic Analysis, Faculty of Chemistry, USTHB, Algeria;CRD, EPE ALDAR, Groupe MOUBYDAL, Dar El-Beida, Alger, Algeria |
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Abstract: | We investigated the deposition rate of aerosol insecticide on through woollen surfaces inside a test chamber. Compared to floor surface, the deposition rate of aerosol insecticide active ingredient on table of 1 m high was up to 2.07 times for piperonyl butoxide, 1.64 times for tetramethrin and 2.95 times for permethrin represented by 0.51, 0.37 and 0.23 μg cm?2 for the three molecules, respectively. Application of the household used cleaning to the woollen table surface decrease these concentrations by 61.32%, 45.01% and 59.80% for the three pesticides respectively, this cleaning procedure still not efficient for the floor surfaces. Moreover, indoor conditions permit the removal of 46.42%, 21.92% and 14.35% of the table surface deposition rate after one week, for the three pesticides, respectively. These conditions ensure the removal of only 28.72%, 20.69% and 24.05% of the three deposit molecules respectively on floor surface. |
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Keywords: | Pyrethroids Aerosol insecticide Indoor surfaces Deposition |
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