Abstract
Undoubtedly, anthropogenic emissions carry a large share of the risk posed on public health by particles exposure in urban areas. However, natural emissions, in the form of desert dust and sea spray, are well known to contribute significantly to the PM load recorded in many Mediterranean environments, posing an extra risk burden on public health. In the present paper, we examine the synoptic climatology in a background station in Palermo, Italy, through K-means clustering of the mean sea-level pressure (MSLP) maps, in an attempt to associate distinct synoptic patterns with increased PM10 levels. Four-day backward trajectory analysis is then applied, in order to study the origins and pathways of air masses susceptible of PM10 episodes. It is concluded that a number of atmospheric patterns result in several kind of flows, namely south, west, and slow-moving/stagnant flows, associated with long-range dust transport and sea spray.
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Dimitriou, K., Paschalidou, A.K. & Kassomenos, P.A. Distinct synoptic patterns and air masses responsible for long-range desert dust transport and sea spray in Palermo, Italy. Theor Appl Climatol 130, 1123–1132 (2017). https://doi.org/10.1007/s00704-016-1957-9
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DOI: https://doi.org/10.1007/s00704-016-1957-9