Particle size distribution and polycyclic aromatic hydrocarbons emissions from agricultural crop residue burning. Academic Article uri icon

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 m 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.

published proceedings

  • Environ Sci Technol

altmetric score

  • 3

author list (cited authors)

  • Zhang, H., Hu, D., Chen, J., Ye, X., Wang, S. X., Hao, J. M., ... An, Z.

citation count

  • 171

complete list of authors

  • Zhang, Hefeng||Hu, Dawei||Chen, Jianmin||Ye, Xingnan||Wang, Shu Xiao||Hao, Ji Ming||Wang, Lin||Zhang, Renyi||An, Zhisheng

publication date

  • July 2011