caa a22 4500 606199799 CHVBK 20210128100940.0 cr unu---uuuuu 210128e20150201xx s 000 0 eng 10.1007/s10653-014-9631-6 doi (NATIONALLICENCE)springer-10.1007/s10653-014-9631-6 Grain-size distribution and heavy metal contamination of road dusts in urban parks and squares in Changchun, China [Elektronische Daten] [Liu Qiang, Wang Yang, Liu Jingshuang, Wang Quanying, Zou Mingying] Due to rapid urbanization and the scarcity of land, most of the urban parks and squares in cities are built close to major roads or industrial areas, where they are subject to many potential pollution sources, including vehicle exhaust and industrial emissions. The aims of this study were to determine the concentrations of selected metals (Pb, Cr, Cu, Ni, Zn, and Cd) in road dusts collected in urban parks and squares in Changchun, China, on June 1, 2013 (International Children's Day) and to estimate the pollution sources. The mean Pb, Cr, Cu, Ni, Zn, and Cd contents (70.89, 60.30, 43.56, 23.16, 170.80, and 0.3111mgkg−1 dry weight, respectively) in urban dusts were higher than their corresponding natural background values, particularly Pb, Cu, Zn, and Cd, which had about 2.5, 1.4, 1.9, and 2.6-fold higher levels, respectively. The results of principal component analysis indicated that Cr and Ni concentrations were mainly of natural origin, while Pb, Cu and Zn were derived from anthropogenic activities, and Cd tended to be from both sources. The geoaccumulation index (I geo) of these metals in the urban dusts under study indicates that they are uncontaminated with Cr and Ni; uncontaminated to moderately contaminated with Cu and Zn; and moderately contaminated with Pb and Cd. In addition, five particle sizes were analyzed separately for heavy metal concentrations. In all studied areas, there are large differences in the metal-loading percentage of different particle-size fractions among the samples, and the particles in 250-2,000-μm fraction are dominant in the total metal loading. Springer Science+Business Media Dordrecht, 2014 Road dust nationallicence Heavy metal nationallicence Geoaccumulation index nationallicence Source identification nationallicence Particle size fractions nationallicence Urban parks and squares nationallicence Qiang Liu Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, 4888 Shengbei Road, 130102, Changchun, China aut Yang Wang Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, 4888 Shengbei Road, 130102, Changchun, China aut Jingshuang Liu Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, 4888 Shengbei Road, 130102, Changchun, China aut Quanying Wang Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, 4888 Shengbei Road, 130102, Changchun, China aut Mingying Zou CNPC Northeast Refining and Petrochemical Engineering Co. Ltd, JiLin Design Institute, Beijing, China aut Environmental Geochemistry and Health Springer Netherlands 37/1(2015-02-01), 71-82 0269-4042 37:1<71 2015 37 10653 https://doi.org/10.1007/s10653-014-9631-6 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10653-014-9631-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Qiang Liu Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, 4888 Shengbei Road, 130102, Changchun, China aut NATIONALLICENCE 700 1- Yang Wang Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, 4888 Shengbei Road, 130102, Changchun, China aut NATIONALLICENCE 700 1- Jingshuang Liu Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, 4888 Shengbei Road, 130102, Changchun, China aut NATIONALLICENCE 700 1- Quanying Wang Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, 4888 Shengbei Road, 130102, Changchun, China aut NATIONALLICENCE 700 1- Mingying Zou CNPC Northeast Refining and Petrochemical Engineering Co. Ltd, JiLin Design Institute, Beijing, China aut NATIONALLICENCE 773 0- Environmental Geochemistry and Health Springer Netherlands 37/1(2015-02-01), 71-82 0269-4042 37:1<71 2015 37 10653