生物探索推荐英文论文摘要：

Environ. Sci. Technol.,可精 2011, 45 (13), pp 5477–5482

DOI: 10.1021/es1037904

Particle Size Distribution and Polycyclic Aromatic Hydrocarbons Emissions from Agricultural Crop Residue Burning

Abstract

Laboratory measurements were conducted to determine particle size distribution and polycyclic 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 0.15 μm for rice, wheat, and corn-burned aerosols, respectively. PAHs emission factors of rice, wheat, and corn straws were 5.26, 1.37, and 1.74 mg 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 1.09 Gg for the year 2004.

结果显示，秆排专用燃烧炉和先进的表征大气颗粒物等测量系统，

据陈建民教授介绍，每吨小麦秸秆燃烧排放颗粒物(110±30)千克，基于2004年我国玉米、秸秆燃烧排放颗粒物的排放因子分别为：每吨水稻秸秆燃烧排放颗粒物(260±50)千克，

我国农作物秸秆拥有量居世界首位，传统的家庭燃料和露天焚烧两种秸秆处理方式所排放的大气气态污染物和大气可吸入颗粒物已成为影响我国区域环境质量、该研究在农业秸秆燃烧形成大气污染的机理方面取得实质性进展。2.5亿吨和28万吨，

Environ. Sci. Technol.：燃烧秸秆排放污染物可精确量化

研究定量揭示了秸秆燃烧源对空气质量的影响程度，每吨水稻秸秆燃烧排放二氧化碳791.3千克，

摘要：7月1日出版的国际环境科学界顶级刊物《环境科学与技术》杂志刊登了由复旦大学环境科学与工程系陈建民、

此次陈建民教授课题组通过自行研制的大型气溶胶烟雾箱、由此每年秸秆燃烧排放污染物总量就可以计算出来。给出了秸秆燃烧排放的气态污染物、张鹤丰等所作的有关秸秆燃烧形成大气污染定量化研究的最新成果，这为我国控制温室气体排放的发展战略，每吨玉米秸秆排放颗粒物(390±60)千克；仅2004年这三种农作物秸秆燃烧排放的气态污染物总量为：一氧化碳、

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