Villenave et al. | 2012 | [52] | France | Auzon | 7 | 4 | arable land | industrial | Al, Cd, Co, Cr, Cu, Hg, Mo, Ni, Pb, Sb, Tl, Zn |
Villenave et al. | 2012 | [52] | France | St Etienne | 3 | 4 | industrial area | industrial | Al, Cd, Co, Cr, Cu, Hg, Mo, Ni, Pb, Sb, Tl, Zn |
Villenave et al. | 2012 | [52] | France | Metz | 2 | 4 | arable land | mine | Al, Cd, Co, Cr, Cu, Hg, Mo, Ni, Pb, Sb, Tl, Zn |
Villenave et al. | 2012 | [52] | France | Douai | 7 | 4 | arable land and forest | industrial | Al, Cd, Co, Cr, Cu, Hg, Mo, Ni, Pb, Sb, Tl, Zn |
Villenave et al. | 2012 | [53] | France | St Laurent le minier | 7 | 3 | industrial area | mine | As, Cd, Pb, Tl, Zn |
Villenave et al. | unpublished | France | Lille | 10 | 1 | industrial area | industrial | Cu, Zn | |
Wang et al. | 2008 | [54] | China | Shenyang | 12 | 1 | arable land | experimental | Cu |
Weiss, Larink | 1991 | [55] | Germany | Braunschweig | 3 | 4 | arable land | sewage sludge | Ni,Cd, Cr, Cu, Pb, Zn |
Yeates et al. | 1994 | [29] | New Zealand | Levin | 6 | 3 | grassland | accidental | As, Cr, Cu |
Zhang et al. | 2006 | [56] | China | Shenyang | 14 | 3 | arable land | experimental | Zn |
Zhang et al. | 2007 | [57] | China | Hongtoushan copper smelter | 4 | 4 | arable land | mine | Cu, Zn |