极地科学进展（英文版）
極地科學進展（英文版）
겁지과학진전（영문판）
Advances in Polar Science
2015年
3期
196-202
,共7页
Antarctica%Great Wall Station%aerosols%ions%trace metals%sea salt%seasonal variation%pollution%long-range transport
AbstractHigh volume aerosol samplers at Great Wall Station in Antarctica were used to collect73 aerosol samplesbetween January 2012 andNovember 2013. The main ions in these aerosol samples, Cl?, NO3?, SO42?, Na+, K+, Ca2+, Mg2+, NH4+, as well as methane sulfonic acid, were analyzed using ion chromatography. Trace metals in these samples, including Pb, Cu, Cd, V, Zn, Fe, and Al, were determined by inductively-coupled plasma mass spectrometry. Results showed thatsea salt was the main component in aerosols atGreat Wall Station. Most ions exhibited signiifcant seasonal variations, with higher concentrations in summer and autumn than in winter and spring. Variations in ions and trace metals were related toseveral processes (or sources), including sea salt emission, secondary aerosol formation, and anthropogenic pollution from both local and distant sources. The sources of ions and trace metals were identiifed using enrichment factor, correlation, and factor analyses. Clearly, Na+, K+, Ca2+, and Mg2+were from marine sources, while Cu, Pb, Zn, and Cdwere from anthropogenic pollution, and Al and V were mainly from crustal sources.
