Mass and trace element size distributions of aerosols emitted by a hospital refuse incinerator |
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| Institution: | 1. School of Materials Science and Engineering, Beijing Key Laboratory for Bioengineering and Sensing Technology, University of Science and Technology Beijing, 30 Xueyuan Road, Haidian District, Beijing, 100083, PR China;2. Institute of Cosmetic Regulatory Science, Beijing Technology & Business University, Beijing, 100048, PR China;1. Department of Nuclear and Quantum Engineering, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea;2. Department of Energy and Environmental Engineering, Soonchunhyang University, 22 Soonchunhyang-ro, Asan, Chungcheongnam-do, 31538, Republic of Korea;3. Chosun University, 309 Pilmun-daero, Dong-gu, Gwangju 61452, Republic of Korea;1. Department of Environmental Health Engineering, Division in Food Safety and Hygiene, Tehran University of Medical Sciences, Tehran, Iran;2. Student’s Scientific Research Center, Tehran University of Medical Sciences, Tehran, Iran;3. Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran;4. Department of Environmental Health Engineering, School of Public Health, Shiraz University of Medical Sciences, Shiraz, Iran;5. DVM, MPh, PhD in Nutrition Science, National Nutrition & Food Technology Research Institute (NNFTRI), Director of Research & Education Affairs Office of International Affairs, The Member of Food Safety Research Center Shahid Beheshti University of Medical Sciences, Tehran, Iran;1. Department of Environmental Chemistry, IDAEA-CSIC, C/Jordi Girona, 18-26, E-08034, Barcelona, Spain;2. Department of Agri-Food Engineering and Biotechnology DEAB-UPC, Esteve Terrades 8, Building 4, Castelldefels, Spain |
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| Abstract: | Mass and elemental size distributions of hospital refuse incineration aerosols were measured in the aerodynamic particle size range 0.02–17 μm with an in-stack compressible flow, low pressure impactor. Oil was used as a supplementary fuel in the refuse combustion process and flue gases were cleaned with a cyclone. Mass size distributions were bimodal. The geometric aerodynamic mean diameter of the fine mode varied between 0.1 and 0.2 μm and the corresponding coarse mode mean between 6 and 10 μm. Mg, Al, Cl, Ti and Fe were found only in coarse mode particles. Elemental size distributions of Na, K, Zn, Cd, Pb and S were bimodal. Over 90% of the particle phase of S, 20–80% of Zn, 62–77% of Cd and 7–74% of Pb, respectively, were found in the fine mode particles. This existence of the fine mode peak in the size distributions of Na, K, Zn, Cd, Pb and S indicates that at least part of these elements vaporizes during the refuse incineration process. |
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