title: 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.
authors: Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China.
authors: Hefeng
authors: H
authors: Zhang
authors: Dawei
authors: D
authors: Hu
authors: Jianmin
authors: J
authors: Chen
authors: Xingnan
authors: X
authors: Ye
authors: Shu Xiao
authors: SX
authors: Wang
authors: Ji Ming
authors: JM
authors: Hao
authors: Lin
authors: L
authors: Wang
authors: Renyi
authors: R
authors: Zhang
authors: Zhisheng
authors: Z
authors: An