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Chemical composition of atmospheric particles as a tool to identify sources affecting aerosol population in the Eastern Black sea atmosphere
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Date
2018
Author
Balcılar, İlker
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Daily size distributed particulate matter samples were collected at a rural station on Eastern Black Sea region between March 2011 and December 2013. Particulate matter samples were analyzed for trace elements by ICP-MS and ED-XRF and for black carbon by Aethalometer. Mean concentrations of trace elements in the fine fraction varied between 0.0011 ng m-3 for Tm and 1382.42 ng m-3 for SO42-, while mean concentrations in the coarse fraction varied between 0.0017 ng m-3 for Tm and 1441.5 ng m-3 for Si. The dominant sectors of air masses arriving the Eastern Black Sea region were N, NE and E in summer and SE, S, SW and W in winter. Air masses were classified into eight clusters regarding their wind speed and direction. Rainfall was found as the only local meteorological parameter affecting concentrations of species. The average contribution of episodes to the concentrations of elements was 60%. Source apportionment of PM was carried out by PMF model and seven sources were resolved. Power plant emissions were found to be the major contributor to PM2.5 (50%). The second largest source was the anthropogenic source with a contribution of 17%. Crustal factors were also remarkable sources with 15% contribution in total. Urban pollution emission were accounted for 13% of PM2.5 mass. The iron and steel plant emission and oil processing emission were accounted 2% and 3% of PM2.5 mass, respectively. Potential source regions of resolved sources were determined by potential source contribution function analysis.
Subject Keywords
Aerosols.
,
Trace elements.
,
Atmospheric aerosols.
,
Atmospheric chemistry.
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http://etd.lib.metu.edu.tr/upload/12622004/index.pdf
https://hdl.handle.net/11511/27219
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Graduate School of Natural and Applied Sciences, Thesis
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İ. Balcılar, “Chemical composition of atmospheric particles as a tool to identify sources affecting aerosol population in the Eastern Black sea atmosphere,” Ph.D. - Doctoral Program, Middle East Technical University, 2018.