How Does the Amount and Composition of PM Deposited on Platanus acerifolia Leaves Change Across Different Cities in Europe?

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• 作者：Chiara Baldacchini ; Ana Castanheiro ; Nairuhi Maghakyan ; Gregorio Sgrigna ; Jolien Verhelst ; Rocío Alonso ; Jorge H. Amorim ; Patrick Bellan ; Danijela Đunisijević Bojović ; Jürgen Breuste ; Oliver Bühler ; Ilie C. Cântar ; Paloma Cariñanos ; Giulia Carriero ; Galina Churkina ; Lucian Dinca ; Raffaela Esposito ; Stanisław W. Gawroński ; Maren Kern ; Didier Le Thiec ; Marco Moretti ; Tine Ningal ; Eleni C. Rantzoudi ; Iztok Sinjur ; Biljana Stojanova ; Mira Aničić Urošević ; Violeta Velikova ; Ivana Živojinović ; Lilit Sahakyan ; Carlo CalfapietraRoeland Samson
• 刊名：Environmental Science & Technology
• 出版年：2017
• 出版时间：February 7, 2017
• 年：2017
• 卷：51
• 期：3
• 页码：1147-1156
• 全文大小：519K
• ISSN：1520-5851

文摘

Particulate matter (PM) deposited on Platanus acerifolia tree leaves has been sampled in the urban areas of 28 European cities, over 20 countries, with the aim of testing leaf deposited particles as indicator of atmospheric PM concentration and composition. Leaves have been collected close to streets characterized by heavy traffic and within urban parks. Leaf surface density, dimensions, and elemental composition of leaf deposited particles have been compared with leaf magnetic content, and discussed in connection with air quality data. The PM quantity and size were mainly dependent on the regional background concentration of particles, while the percentage of iron-based particles emerged as a clear marker of traffic-related pollution in most of the sites. This indicates that Platanus acerifolia is highly suitable to be used in atmospheric PM monitoring studies and that morphological and elemental characteristics of leaf deposited particles, joined with the leaf magnetic content, may successfully allow urban PM source apportionment.