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International Journal of Environment Science and Technology
Center for Environment and Energy Research and Studies (CEERS)
ISSN: 1735-1472
EISSN: 1735-2630
Vol. 12, No. 1, 2015, pp. 73-86
Bioline Code: st15007
Full paper language: English
Document type: Research Article
Document available free of charge

International Journal of Environment Science and Technology, Vol. 12, No. 1, 2015, pp. 73-86

 en Experimental and computational study of particulate matter of secondhand smoke in indoor environment
Al-sarraf, A.A.; Yassin, M.F. & Bouhamra, W.

Abstract

Tobacco smoking has become one of the greatest sources of indoor inhalable particles. Tobacco smoke changes chemically and physically after it is released into indoor air; these changes can increase secondhand smoke (SHS) toxicity. The SHS as assessed by indoor particulate matter with an aerodynamic diameter of less than 2.5 mm (PM2.5) was investigated experimentally and computationally. Test house experiment was performed to study the PM2.5 concentration under controlled conditions coupled with mathematical model of continuity equation. PM2.5 was measured using a DustTrak personal sampler. Two-dimensional flow and dispersion of cigarette smoke were modeled using computational fluids dynamics model which were solved using Reynolds–averaged Navier–Stokes equations. The effect of air purifier in reducing SHS and thirdhand smoke (THS) was analyzed and evaluated. The results demonstrated that the air purifier cannot control the indoor PM2.5 levels. Furthermore, amount of smoke from main stream of SHS is more compared to side stream and THS can be evaluated by calculating the adsorption term of continuity equation.

Keywords
CFD models; Indoor air quality; Particulate matter 2.5 concentration; Tobacco smoke; Test house

 
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