Abstract
Aerosol composition change between dust storm and non-dust storm periods in spring is studied using the total suspended particle data measured at Gosan, a background area in Korea. The concentrations of eight inorganic ions and 12 elements were analyzed for the TSP samples collected from March 1992 to May 2006. Two-step statistical analyses were carried out for the data: F test and t test. The concentrations of anthropogenic ionic species showed increasing trend since 2003. The absolute concentrations of most anthropogenic species such as sulfate or nitrate increased (from 7.33 to 9.25 µg m−3 and from 2.04 to 4.84 µg m−3, respectively) during the dust storm period. However, the enrichment factors or normalized concentrations based on Al of most anthropogenic species decreased during dust storm period (factor of 0.1–0.5). It suggests that, in general, relative importance of anthropogenic species during dust storm would be not high.
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Acknowledgments
This work was supported by the Korea Science and Engineering Foundation (KOSEF) through the National Research Lab. Program (No. R0A-2006-000-10221-0) and the SRC Program (the Climate Environment System Research Center). We thank Prof. C.-H. Kang at the Cheju National University, Korea for providing the sampling data.
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Kim, N.K., Park, HJ. & Kim, Y.P. Chemical Composition Change in TSP Due to Dust Storm at Gosan, Korea: Do the Concentrations of Anthropogenic Species Increase Due to Dust Storm?. Water Air Soil Pollut 204, 165–175 (2009). https://doi.org/10.1007/s11270-009-0035-7
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DOI: https://doi.org/10.1007/s11270-009-0035-7