【摘 要】
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Laboratory measurements were conducted to determine particle size distribution and polyclic aromatic hydrocarbons(PAHs)emissions from the burning of rice,Wheat,
【机 构】
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Department of Environmmental Science and Engineering Fudan Unriversity, Shanghai 200433, China
【出 处】
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“山东省经济、社会发展重大环境瓶颈问题解析与突破”系列论坛暨生态山东建设高层论坛
论文部分内容阅读
Laboratory measurements were conducted to determine particle size distribution and polyclic aromatic hydrocarbons(PAHs)emissions from the burning of rice,Wheat,and corn straws, three major agricultural crop residues in China particle size distributions were determined by a wide-range particle spectrometer (WPS).PAHs in both the particulate and gaseous phases were simultaneously collected and analyzed by GC-MS.Particle number size distributions showed a prominent accumulation mode with peaks at 0.10,0.15,and 0.15μm for rice,wheat,and comburned aerosols,respectively.PAHs emission factors of rice,wheat and corn straws were 5.26,1.37,and 1.74mg kg-1,respectively.It was suggested that combustion with higher efficiency was characterized by smaller particle size and lower PAHs emission factors,The total PAHs emissions from the burning of three agricultural crop residues in China were estimated to be L09 Gg for the year 2004.
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