147
Table 5.4 Correlation coefficient between metal concentration in ambient media (water and sediment) with accumulated metal in vegetative parts of Avicennia
marina
in 2014
Combination
r-value
p-value
Premonsoon
Monsoon
Postmonsoon
Premonsoon
Monsoon
Postmonsoon
Root Zn × Dissolved Zn
0.605
0.805
0.612
p < 0.01
p < 0.01
p < 0.01
Root Zn × Sediment Zn
0.908
0.833
0.939
p < 0.01
p < 0.01
p < 0.01
Stem Zn × Dissolved Zn
0.574
0.767
0.591
p < 0.01
p < 0.01
p < 0.01
Stem Zn × Sediment Zn
0.948
0.884
0.942
p < 0.01
p < 0.01
p < 0.01
Leaf Zn × Dissolved Zn
0.479
0.668
0.474
p < 0.05
p < 0.01
p < 0.05
Leaf Zn × Sediment Zn
0.837
0.548
0.817
p < 0.01
p < 0.01
p < 0.01
Root Cu × Dissolved Cu
0.971
0.913
0.969
p < 0.01
p < 0.01
p < 0.01
Root Cu × Sediment Cu
0.941
0.951
0.931
p < 0.01
p < 0.01
p < 0.01
Stem Cu × Dissolved Cu
0.960
0.776
0.955
p < 0.01
p < 0.01
p < 0.01
Stem Cu × Sediment Cu
0.946
0.934
0.961
p < 0.01
p < 0.01
p < 0.01
Leaf Cu × Dissolved Cu
0.943
0.837
0.925
p < 0.01
p < 0.01
p < 0.01
Leaf Cu × Sediment Cu
0.935
0.930
0.933
p < 0.01
p < 0.01
p < 0.01
Root Pb × Dissolved Pb
0.791
0.583
0.655
p < 0.01
p < 0.01
p < 0.01
Root Pb × Sediment Pb
0.800
0.545
0.774
p < 0.01
p < 0.01
p < 0.01
Stem Pb × Dissolved Pb
0.821
0.575
0.590
p < 0.01
p < 0.01
p < 0.01
Stem Pb × Sediment Pb
0.665
0.520
0.538
p < 0.01
p < 0.01
p < 0.01
Leaf Pb × Dissolved Pb
0.454
0.448
0.671
p < 0.05
p < 0.05
p < 0.01
Leaf Pb × Sediment Pb
0.218
0.211
0.691
IS
IS
p < 0.01
Root Hg × Dissolved Hg
0.834
0.922
0.880
p < 0.01
p < 0.01
p < 0.01
Root Hg × Sediment Hg
0.831
0.806
0.799
p < 0.01
p < 0.01
p < 0.01
Stem Hg × Dissolved Hg
0.877
0.915
0.920
p < 0.01
p < 0.01
p < 0.01
Stem Hg × Sediment Hg
0.848
0.814
0.871
p < 0.01
p < 0.01
p < 0.01
Leaf Hg × Dissolved Hg
0.943
0.611
0.741
p < 0.01
p < 0.01
p < 0.01
Leaf Hg × Sediment Hg
0.802
0.442
0.608
p < 0.01
p < 0.05
p < 0.01
IS
insignificant
5 Mangroves: A Sink of Heavy Metals