文献类型：期刊文献

英文题名：Influential Factors and Dry Deposition of Polychlorinated Biphenyls (PCBs) in Atmospheric Particles at an Isolated Island (Pingtan Island) in Fujian Province, China

作者：Lao, Qibin[1,2];Jiao, Liping[2];Chen, Fajin[1];Chen, Liqi[2];Sun, Xia[2]

机构：[1]Guangdong Ocean Univ, Guangdong Prov Key Lab Coastal Ocean Variat & Dis, Zhanjiang 524088, Peoples R China;[2]SOA, Key Lab Global Change & Marine Atmospher Chem, Inst Oceanog 3, Xiamen 361005, Peoples R China

年份：2018

卷号：9

期号：2

外文期刊名：ATMOSPHERE

收录：SCI-EXPANDED(收录号：WOS:000427507000025)、、EI(收录号：20180804826903)、Scopus(收录号：2-s2.0-85042210598)、WOS

基金：This work was supported by the Scientific Research Foundation of the Third Institute of Oceanography, SOA (2013012), the National Natural Science Foundation of China (41602360 and 41476066), the National Social Welfare Research Project (2004DIB5J178), the Foundation for Distinguished Young Teacher in Higher Education of Guangdong (YQ2014004), the Project of Enhancing School with Innovation of Guangdong Ocean University (GDOU2014050201) and Guangdong Natural Science Foundation of China (2016A030312004).

语种：英文

外文关键词：polychlorinated biphenyls (PCBs); atmospheric particles; dry deposition; stable carbon isotope; meteorological conditions; back trajectories

外文摘要：To explore the polychlorinated biphenyl (PCB) pollution characteristics of atmospheric particles, influential factors, and dry deposition fluxes, 28 PCB congeners were examined over a 2-year period in the environment of an isolated island in Fujian Province. In 2006 and 2007, PCB concentrations ranged from 1.12 to 87.32 pg m(-3) and ND (not detected) to 44.93 pg m(-3), respectively, and were predominantly highly-chlorinated PCBs. The levels were much lower than those from industrial, urban, and rural areas, but slightly higher than those found in coastal areas of Europe and in the ocean. Obvious seasonal variations were found in the PCB levels, with high levels appearing in the winter, whereas low levels appeared in the summer, which indicated a significant positive correlation with the atmospheric particle mass level. The distribution pattern of the PCB concentration was largely affected by the meteorological conditions and total organic carbon (TOC) levels. Moreover, air mass originating from Northern China may be responsible for the higher PCB levels over Pingtan Island during the winter, and tracing the source of atmospheric particles by the stable carbon isotope suggested that the PBC levels may be influenced by coal combustion during the heating season of Northern China. The total dry deposition flux of the 28 PCBs on Pingtan Island was 3.94 ng m(-2) d(-1) and 2.94 ng m(-2) d(-1) in 2006 and 2007, respectively, and the average yearly input to the adjacent waters was 7531.2 g y(-1).