Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Sorption of SO2 by typical indoor surfaces including wool carpets, wallpaper and paint
Abstract The sorption of sulphur-35 labelled SO2 by a number of samples of wool carpets and by wallpapers and painted surfaces was measured at a concentration of 100–200 μg m −3. The deposition velocities for carpets ranged from 0.02 to 0.07 cms−1 and were lower for carpets with an acid pH than for those which were either neutral or alkaline. The sorption of SO2 appeared to be irreversible. Pre-exposing carpets to stable SO2, equivalent to 27 yr at 30 μg m−3 (a typical indoor concentration) reduced the amount of 35SO2 taken up in a subsequent exposure by a factor 3. Fresh emulsion paint had the highest deposition velocity (0.128) and vinyl wallpaper the lowest (0.007) of the other surfaces investigated There can be no doubt that the lower levels of SO2 within buildings, compared with simultaneous measurements outside, are due to its sorption by furnishings. The most effective sorbing materials likely to be present are cellulose wallpapers, furnishing fabrics and wool carpets.
Sorption of SO2 by typical indoor surfaces including wool carpets, wallpaper and paint
Abstract The sorption of sulphur-35 labelled SO2 by a number of samples of wool carpets and by wallpapers and painted surfaces was measured at a concentration of 100–200 μg m −3. The deposition velocities for carpets ranged from 0.02 to 0.07 cms−1 and were lower for carpets with an acid pH than for those which were either neutral or alkaline. The sorption of SO2 appeared to be irreversible. Pre-exposing carpets to stable SO2, equivalent to 27 yr at 30 μg m−3 (a typical indoor concentration) reduced the amount of 35SO2 taken up in a subsequent exposure by a factor 3. Fresh emulsion paint had the highest deposition velocity (0.128) and vinyl wallpaper the lowest (0.007) of the other surfaces investigated There can be no doubt that the lower levels of SO2 within buildings, compared with simultaneous measurements outside, are due to its sorption by furnishings. The most effective sorbing materials likely to be present are cellulose wallpapers, furnishing fabrics and wool carpets.
Sorption of SO2 by typical indoor surfaces including wool carpets, wallpaper and paint
Walsh, M. (Autor:in) / Black, A. (Autor:in) / Morgan, A. (Autor:in) / Crawshaw, G.H. (Autor:in)
Atmospheric Environment ; 11 ; 1107-1111
24.02.1977
5 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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| Europäisches Patentamt | 2020
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