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| Titel |
Potential ecological risk assessment and prediction of soil heavy-metal pollution around coal gangue dump |
| VerfasserIn |
X. Jiang, W. X. Lu, H. Q. Zhao, Q. C. Yang, Z. P. Yang |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1561-8633
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| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Sciences ; 14, no. 6 ; Nr. 14, no. 6 (2014-06-27), S.1599-1610 |
| Datensatznummer |
250118507
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| Publikation (Nr.) |
 copernicus.org/nhess-14-1599-2014.pdf |
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| Zusammenfassung |
| The aim of the present study is to evaluate the potential ecological risk and
trend of soil heavy-metal pollution around a coal gangue dump in Jilin
Province (Northeast China). The concentrations of Cd, Pb, Cu, Cr and Zn were
monitored by inductively coupled plasma mass spectrometry (ICP-MS). The
potential ecological risk index method developed by Hakanson (1980) was
employed to assess the potential risk of heavy-metal pollution. The potential
ecological risk in the order of
ER(Cd) > ER(Pb) > ER(Cu) > ER(Cr) > ER(Zn)
have been obtained, which showed that Cd was the most important factor
leading to risk. Based on the Cd pollution history, the cumulative
acceleration and cumulative rate of Cd were estimated, then the fixed number
of years exceeding the standard prediction model was established, which was
used to predict the pollution trend of Cd under the accelerated accumulation
mode and the uniform mode. Pearson correlation analysis and correspondence
analysis are employed to identify the sources of heavy metals and the
relationship between sampling points and variables. These findings provided
some useful insights for making appropriate management strategies to prevent
or decrease heavy-metal pollution around a coal gangue dump in the Yangcaogou
coal mine and other similar areas elsewhere. |
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