Figure 1

Spatial distributions of township soil heavy metal concentration (mg/kg) during 1982-1986 in Taiwan. Detailed legend: Spatial distributions of township soil heavy metal concentration (mg/kg) during 1982–1986 in Taiwan. (a) As, (b) Cd, (c) Cr, (d) Cu, (e) Hg, (f) Ni, (g) Pb, (h) Zn.