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Table 1 Correlations between Cu, Zn, Cd, and Pb concentrations in soil, nettle leaves, and snail body

From: Bioaccumulative and conchological assessment of heavy metal transfer in a soil-plant-snail food chain

  Log Log Log Log Log Log Log Log Log Log Log Log Log Log Log Log
Cu(S) Zn(S) Cd(S) Pb(S) Cu(U) Zn(U) Cd(U) Pb(U) Cu(SF) Zn(SF) Cd(SF) Pb(SF) Cu(HP) Zn(HP) Cd(HP) Pb(HP)
Log Cu(S)   0.95*** 0.31 ns 0.81* 0.67 ns 0.85** 0.83* 0.61 ns 0.45 ns 0.34 ns 0.34 ns 0.26 ns 0.20 ns 0.05 ns 0.25 ns 0.37 ns
Log Zn(S)    0.22 ns 0.88** 0.45 ns 0.93** 0.80* 0.69 ns 0.25 ns 0.11 ns 0.11 ns 0.03 ns -0.02 ns -0.11 ns 0.08 ns 0.15 ns
Log Cd(S)     0.25 ns 0.47 ns 0.11 ns 0.18 ns 0.31 ns 0.59 ns 0.58 ns 0.58 ns -0.07 ns 0.87** 0.52 ns 0.64 ns 0.81*
Log Pb(S)      0.52 ns 0.90** 0.82* 0.76* 0.38 ns -0.02 ns -0.02 ns -0.23 ns 0.029 ns -0.01 ns 0.02 ns 0.10 ns
Log Cu(U)       0.46 ns 0.66 ns 0.40 ns 0.90** 0.67 ns 0.50 ns 0.46 ns 0.62 ns 0.60 ns 0.58 ns 0.75*
Log Zn(U)        0.90** 0.87** 0.35 ns -0.07 ns -0.07 ns -0.13 ns -0.12 ns -0.07 ns -0.03 ns 0.10 ns
Log Cd(U)         0.84* 0.52 ns 0.06 ns 0.08 ns 0.04 ns 0.03 ns 0.14 ns 0.14 ns 0.31 ns
Log Pb(U)          0.48 ns -0.16 ns -0.06 ns -0.38 ns 0.05 ns 0.07 ns -0.01 ns 0.27 ns
Log Cu(SF)           0.59 ns 0.49 ns 0.24 ns 0.74* 0.67 ns 0.55 ns 0.84**
Log Zn(SF)            0.88** 0.74* 0.73* 0.74* 0.90** 0.80*
Log Cd(SF)             0.75* 0.59 ns 0.66 ns 0.83* 0.80*
Log Pb(SF)              0.21 ns 0.41 ns 0.56 ns 0.39 ns
Log Cu(HP)               0.57 ns 0.63 ns 0.89**
Log Zn(HP)                0.90** 0.74*
Log Cd(HP)                 0.80*
Log Pb(HP)                 
  1. Note. *** – p < 0.001, ** – p < 0.01, * – p < 0.05, ns – p > 0.05.
  2. Abbreviations. Cu(S) – copper concentrations in soil, Cu(U) – copper concentrations in nettle leaves, Cu(SF) – copper concentrations in snail foot, Cu(HP) – copper concentrations in snail hepatopancreas, Zn(S) – zinc concentrations in soil, Zn(U) – zinc concentrations in nettle leaves, Zn(SF) – zinc concentrations in snail foot, Zn(HP) – zinc concentrations in snail hepatopancreas, Cd(S) – cadmium concentrations in soil, Cd(U) – cadmium concentrations in nettle leaves, Cd(SF) – cadmium concentrations in snail foot, Cd(HP) – cadmium concentrations in snail hepatopancreas, Pb(S) – lead concentrations in soil, Pb(U) – lead concentrations in nettle leaves, Pb(SF) – lead concentrations in snail foot, Pb(HP) – lead concentrations in snail hepatopancreas.