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Volume 14, No. 3, April 2014, Pages 677-685 PDF(1.7 MB)  
doi: 10.4209/aaqr.2013.10.0308   

A Multi-Analytical Approach to the Use of Conifer Needles as Passive Samplers of Particulate Matter and Organic Pollutants

Giulia Bertolotti1, Elena C. Rada2, Marco Ragazzi2, Alessandro Chisté2, Stefano Gialanella1

1 Dipartimento di Ingegneria Industriale, Università degli Studi di Trento, Via Mesiano 77, 38123 Trento, Italy
2 Dipartimento di Ingegneria Civile, Ambientale e Meccanica, Università degli Studi di Trento, Via Mesiano 77, 38123 Trento, Italy




The present work regards the analysis of airborne pollutants emitted by an electric arc furnace steel making plant at a test site in Northern Italy and collected by conifer needles. The spatial and temporal trends of accumulation of Mn, Zn, Fe, Cr, Pb, polychlorinated dibenzo-p-dioxins/dibenzofurans and polychlorinated biphenyls dioxin revealed that the contribution from the steel making plant has never been particularly high, whereas traffic emerged as a significant pollution source. The benefits of combining bulk and single particle analysis in air pollution studies from different sources are also discussed.



Keywords: Spruce needles; Air pollution; Steelmaking plant pollution; Heavy metals.



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