Particle Size Distribution and Polycyclic Aromatic Hydrocarbons Emissions from Agricultural Crop Residue Burning
Hefeng Zhang
Dawei Hu
Jianmin Chen
Xingnan Ye
Shu Xiao Wang
Ji Ming Hao
Lin Wang
Renyi Zhang
Zhisheng An
10.1021/es1037904.s001
https://acs.figshare.com/articles/journal_contribution/Particle_Size_Distribution_and_Polycyclic_Aromatic_Hydrocarbons_Emissions_from_Agricultural_Crop_Residue_Burning/2634757
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<sup>–1</sup>, 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.
2011-07-01 00:00:00
Agricultural Crop Residue BurningLaboratory measurements
PAHs emission factors
WPS
Particle number size distributions
crop residues
wheat
particle size distribution
Polycyclic Aromatic Hydrocarbons Emissions
Particle size distributions
Particle Size Distribution
0.15 μ m
corn straws