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Chemical Characterization of Individual Aerosol Particles in Central Siberia

机译：西伯利亚中部单个气溶胶颗粒的化学表征

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摘要

In order to characterize the Siberian aerosol, more than 120 samples for single-particle analysis have been collected simultaneously at two sampling stations in central Siberia in 1 month's time during February and August 1992. For each sample, 400 particles have been analyzed with automated electron probe X-ray microanalysis. Hierarchical cluster analysis allowed us to identify nine major particle types. The differences in aerosol composition were found to be bigger between the winter and summer campaigns than between the two sampling locations. Nonhi-erarchical cluster analysis combined with 36-h backward air mass trajectories permitted us to compare the abundances for the major particle types for four different source sectors. Results showed significant, though not enormous, differences. Source identification by principal factor analysis allowed the identification of several sources for the Siberian aerosol. Our results provide ample evidence for a long-suspected contribution to Arctic pollution by industrial complexes in the former Soviet Union.
机译：为了表征西伯利亚的气溶胶，在1992年2月和8月的1个月内，在西伯利亚中部的两个采样站同时收集了120多个用于单颗粒分析的样品。对于每个样品，已经用自动电子分析了400个颗粒探针X射线显微分析。层次聚类分析使我们能够识别出九种主要的颗粒类型。发现冬季和夏季运动之间的气溶胶成分差异比两个采样地点之间的差异大。非分层聚类分析与36小时向后空气质量轨迹相结合，使我们能够比较四个不同源部门主要颗粒类型的丰度。结果显示出很大的差异，尽管不是很大。通过主因子分析进行源识别，可以识别西伯利亚气溶胶的几种源。我们的研究结果为前苏联工业园区长期以来对北极污染的贡献提供了充分的证据。

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