Figure 1

Spatial distribution of the heavy metal concentrations before remediation: (a) Cd; (b) As; (c) Cu; (d) Hg; (e) Zn (Note: ArcGIS 10.1 was used to create the map in this figure, http://www.esrichina.com.cn/2015/0107/2830.html).

Spatial distribution of the heavy metal concentrations before remediation: (a) Cd; (b) As; (c) Cu; (d) Hg; (e) Zn (Note: ArcGIS 10.1 was used to create the map in this figure, http://www.esrichina.com.cn/2015/0107/2830.html).