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Characterization of PM Using Multiple Site Data in a Heavily Industrialized Region of Turkey

Category: Aerosol and Atmospheric Chemistry

Volume: 15 | Issue: 1 | Pages: 11-27
DOI: 10.4209/aaqr.2014.02.0039
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Melik Kara1,2, Philip K. Hopke 2, Yetkin Dumanoglu1, Hasan Altiok1, Tolga Elbir1, Mustafa Odabasi1, Abdurrahman Bayram1

  • 1 Department of Environmental Engineering, Dokuz Eylul University, Tinaztepe Campus, Buca-Izmir, 35160, Turkey
  • 2 Center for Air Resources Engineering and Science, Clarkson University, Box 5708, Potsdam, NY 13699, USA

Highlights

Multiple site PM data from the Aliaga region of Turkey were analyzed.
Eight factors were identified and associated with local sources.
The contributions and CPF values were consistent with the known source locations.
The multiple site data allowed a comprehensive identification of the primary PM sources.


Abstract

Source apportionment has most often been applied to a time series of data collected at a single site. However, in a complex airshed where there are multiple sources, it may be helpful to collect samples from multiple sites to ensure that some of them have low contributions from specific sources such that edges can be properly defined. In this study, samples were collected at multiple sites in the Aliaga region (38°40′–38°54′N and 26°50′–27°03′E) located in western Turkey on the coast of the Aegean Sea. This area contains a number of significant air pollution sources including five scrap iron-steel processing plants with electric arc furnaces (EAFs), several steel rolling mills, a petroleum refinery, a petrochemical complex, a natural gas-fired power plant, a fertilizer plant, ship breaking yards, coal storage and packaging, scrap storage and classification sites, large slag and scrap piles, heavy road traffic, very intense transportation activities including ferrous scrap trucks and busy ports used for product and raw material transportation. A total of 456 samples of PM10 at six sampling sites and 88 samples of PM2.5 at one site were collected for four seasons and the elemental composition was determined for 43 elements. The newest version of EPA PMF (V5.0) that has the capability of handling multiple site data was used for source apportionment. Eight factors were identified as iron-steel production from scrap (23.4%), re-suspended and road dust (23.3%), crustal (20.5%), marine aerosol (14.4%), biomass and wood combustion (7.2%), salvage activities (4.7%), coal combustion (3.7%) and residual oil combustion (2.8%). The pattern of source contributions and conditional probability function analysis were consistent with the locations of the known sources. Thus, the multiple site data allowed for a comprehensive identification of the primary sources of PM in this region.

Keywords

EPA PMF (V5.0) Trace elements Source contribution Iron-steel production Aliaga


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