151
Table 5.8 Correlation coefficient between metal concentration in ambient media (water and sediment) with accumulated metal in vegetative parts of Excoecaria
agallocha
in 2014
Combination
r-value
p-value
Premonsoon
Monsoon
Postmonsoon
Premonsoon
Monsoon
Postmonsoon
Root Zn × Dissolved Zn
0.616
0.733
0.603
p < 0.01
p < 0.01
p < 0.01
Root Zn × Sediment Zn
0.932
0.802
0.946
p < 0.01
p < 0.01
p < 0.01
Stem Zn × Dissolved Zn
0.568
0.691
0.563
p < 0.01
p < 0.01
p < 0.01
Stem Zn × Sediment Zn
0.952
0.825
0.940
p < 0.01
p < 0.01
p < 0.01
Leaf Zn × Dissolved Zn
0.522
0.643
0.597
p < 0.01
p < 0.01
p < 0.01
Leaf Zn × Sediment Zn
0.737
0.555
0.734
p < 0.01
p < 0.01
p < 0.01
Root Cu × Dissolved Cu
0.941
0.834
0.956
p < 0.01
p < 0.01
p < 0.01
Root Cu × Sediment Cu
0.879
0.869
0.881
p < 0.01
p < 0.01
p < 0.01
Stem Cu × Dissolved Cu
0.970
0.844
0.921
p < 0.01
p < 0.01
p < 0.01
Stem Cu × Sediment Cu
0.938
0.934
0.917
p < 0.01
p < 0.01
p < 0.01
Leaf Cu × Dissolved Cu
0.925
0.835
0.929
p < 0.01
p < 0.01
p < 0.01
Leaf Cu × Sediment Cu
0.901
0.840
0.845
p < 0.01
p < 0.01
p < 0.01
Root Pb × Dissolved Pb
0.940
0.774
0.817
p < 0.01
p < 0.01
p < 0.01
Root Pb × Sediment Pb
0.878
0.802
0.736
p < 0.01
p < 0.01
p < 0.01
Stem Pb × Dissolved Pb
0.819
0.917
0.944
p < 0.01
p < 0.01
p < 0.01
Stem Pb × Sediment Pb
0.681
0.930
0.854
p < 0.01
p < 0.01
p < 0.01
Leaf Pb × Dissolved Pb
0.894
0.892
0.867
p < 0.01
p < 0.01
p < 0.01
Leaf Pb × Sediment Pb
0.673
0.855
0.897
p < 0.01
p < 0.01
p < 0.01
Root Hg × Dissolved Hg
0.920
0.875
0.920
p < 0.01
p < 0.01
p < 0.01
Root Hg × Sediment Hg
0.883
0.825
0.811
p < 0.01
p < 0.01
p < 0.01
Stem Hg × Dissolved Hg
0.903
0.824
0.924
p < 0.01
p < 0.01
p < 0.01
Stem Hg × Sediment Hg
0.821
0.743
0.884
p < 0.01
p < 0.01
p < 0.01
Leaf Hg × Dissolved Hg
0.780
0.872
0.912
p < 0.01
p < 0.01
p < 0.01
Leaf Hg × Sediment Hg
0.890
0.796
0.832
p < 0.01
p < 0.01
p < 0.01
IS
insignificant
5 Mangroves: A Sink of Heavy Metals