Dynamics of atmospheric polychlorinated biphenyls (PCBs): concentrations, patterns, partitioning, and dry deposition level estimations in a residential site of Turkey

作者：Cindoruk S Siddik^*; Tasdemir Yuecel

来源：Environmental Monitoring and Assessment, 2010, 162(1-4): 67-80.

DOI：10.1007/s10661-009-0776-1

• Atmosphere
• Congener
• Partitioning models
• PAHs

Air samples were collected at a residential site (Gulbahce, Bursa, Turkey) between August 2004 and April 2005 using a modified high volume air sampler. The mean of gas and particle phase concentrations of polychlorinated biphenyls (PCBs) were 468 /-297 and 43 /-37 pgm(-3) (average /-standard deviation, SD), respectively. The dominated PCB homologs were 3-CBs, 4-CBs, and 5-CBs. The measured PCB concentrations were higher than the values of pristine sites. In order to assess the gas/particle partitioning fate, log K(P)-log P(L)(o), log KP-log K(OA) and the Junge-Pankow model were applied to the data. Experimental K(P) was well correlated with log P(L)(o) and log K(OA) at p < 0.05. Then, dry deposition fluxes were estimated using atmospheric concentrations and dry deposition velocities obtained from literature. A correlation matrix was formed for PCB homologs including 27 congeners with concurrently measured 16 polycyclic aromatic hydrocarbons (PAHs) and meteorological parameters. Most of PAH compounds were significantly correlated with 5-CBs and 6-CBs.

• 出版日期2010-3