Effect of chimneys on indoor air concentrations of PM10 and benzo[a]pyrene in Xuan Wei,China |
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| Authors: | Linwei Tian Qing Lan Dong Yang Xingzhou He Ignatius TS Yu S Katharine Hammond |
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| Institution: | 1. Department of Occupational & Environmental Medicine, Faculty of Medicine, Cairo University, Egypt;2. Department of Medical Biochemistry, Faculty of Medicine, Cairo University, Egypt;3. Department of Neurology, Faculty of Medicine, Cairo University, Egypt;4. Department of Neurology, Faculty of Medicine, Bani-suef University, Egypt;2. Southern Forest Resources Research Center, National Institute of Forest Science, Jinju 52817, Gyeongnam, Republic of Korea;3. Faculty of Life and Environmental Sciences, University of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki 305-8572, Japan;4. SM Biovision, Jinjudaero 501, Jinju 52828, Gyeongnam, Republic of Korea;5. Department of Forest Sciences, Seoul National University, Seoul 08826, Republic of Korea;6. Research Institute of Agriculture and Life Science, College of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea |
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| Abstract: | This paper reports the effect of chimneys in reducing indoor air pollution in a lung cancer epidemic area of rural China. Household indoor air pollution concentrations were measured during unvented burning (chimneys blocked) and vented burning (chimneys open) of bituminous coal in Xuan Wei, China. Concentrations of particulate matter with an aerodynamic diameter of 10 μm or less (PM10) and of benzoa]pyrene (BaP) were measured in 43 homes during normal activities. The use of chimneys led to significant decreases in indoor air concentrations of particulate matter with an aerodynamic diameter of 10 μm or less (PM10) by 66% and of benzoa]pyrene (BaP) by 84%. The average BaP content of PM10 also decreased by 55% with the installation of a chimney. The reduction of indoor pollution levels by the installation of a chimney supports the epidemiology findings on the health benefits of stove improvement. However, even in the presence of a chimney, the indoor air concentrations for both PM10 and BaP still exceeded the indoor air quality standards of China. Movement up the energy ladder to cleaner liquid or gaseous fuels is probably the only sustainable indoor air pollution control measure. |
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