Figure 3

Block clustering of the metal concentrations in soil, nettle leaves, and snail hepatopancreas. Legend. Cu(S)–copper concentrations in soil; Cu(U)–copper concentrations in nettle leaves; Cu(HP)–copper concentrations in snail hepatopancreas; Zn(S)–zinc concentrations in soil; Zn(U)–zinc concentrations in nettle leaves; Zn(HP)–zinc concentrations in snail hepatopancreas; Mn(S)–manganese concentrations in soil; Mn (U)–manganese concentrations in nettle leaves; Mn(HP)–manganese concentrations in snail hepatopancreas; Fe(S)–iron concentrations in soil; Fe (U)–iron concentrations in nettle leaves; Fe (HP)–iron concentrations in snail hepatopancreas; Cd(S)–cadmium concentrations in soil; Cd(U)–cadmium concentrations in nettle leaves; Cd(HP)–cadmium concentrations in snail hepatopancreas; Co(S)–cobalt concentrations in soil; Co(U)–cobalt concentrations in nettle leaves; Co(HP)–cobalt concentrations in snail hepatopancreas; Co(S)–nickel concentrations in soil; Co(U)–nickel concentrations in nettle leaves; Co(HP)–nickel concentrations in snail hepatopancreas; Pb(S)–lead concentrations in soil; Pb(U)–lead concentrations in nettle leaves; Pb(HP)–lead concentrations in snail hepatopancreas.