期刊
ENVIRONMENTAL POLLUTION
卷 177, 期 -, 页码 106-115出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.envpol.2013.02.007
关键词
Garden soil; Enrichment factor; Heavy metal; Urban environment; Multivariate statistic
资金
- European Union
- European Social Fund
- Broadening the knowledge base and supporting the long term professional sustainability of the Research University Centre of Excellence at the University of Szeged by ensuring the rising generation of excellent scientists [TAMOP-4.2.2/B-10/1-2010-0012]
The concentration of heavy metals and soil properties in fifty urban garden soils of Szeged (SE Hungary) were determined to evaluate the cumulative impacts of urbanization and cultivation on these soils. Using two enrichment factors (EFs) (based on reference horizon; Ti as reference element) and multivariate statistical analysis (PCA), the origin of the studied elements was defined. According to statistical coincidence of EFs confirmed by t-test, anthropogenic enrichment of Cu (EF = 4), Zn (EF = 2.7) and Pb (EF = 2.5) was significant in topsoils. Moreover, PCA also revealed the geogenic origin of Ni, Co, Cr and As and differentiated two groups of the anthropogenic metals [Pb, Zn] [Cu]. Spatial distribution of the metals visualized by GIS reflected the traffic origin of Pb; while based on ANOVA, the anthropogenic source of Cu is relevant (mainly pesticides) and there is a statistically significant difference in its concentration depending on land use. (c) 2013 Elsevier Ltd. All rights reserved.
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