E3S Web of Conferences
Volume 1, 2013Proceedings of the 16th International Conference on Heavy Metals in the Environment
|Number of page(s)||3|
|Section||Heavy Metals in the Atmosphere III: Local Scales/Modelling|
|Published online||23 April 2013|
Seasonal variations in the concentration and solubility of elements in atmospheric particulate matter: a case study in Northern Italy
1 Department of Chemistry, Sapienza University of Rome, P.le Aldo Moro 5, 00185, Rome, ITALY
2 Institute of Atmospheric Pollution Research, C.N.R., Via Salaria Km 29.300, 00015, Monterotondo St. (Rome), ITALY
Atmospheric particulate matter is characterized by a variety of chemical components, generally produced by different sources. Chemical fractionation of elements, namely the determination of their extractable and residual fractions, may reliably increase the selectivity of some elements as tracers of specific PM sources. Seasonal variations of atmospheric particulate matter concentration in PM10 and PM2.5, of elemental concentration in PM10 and PM2.5, of the extractable and residual fraction of elements in different size fractions in the range 0.18 – 18 μm are reported in this paper. The effect of the ageing of the air masses is discussed.
Key words: particulate matter / atmosphere / elements / chemical fractionation / size distribution
© Owned by the authors, published by EDP Sciences, 2013
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 2.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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