Environmental and Ecological Risk Assessment of Trace Metal Contamination in Mangrove Ecosystems: A Case from Zhangjiangkou Mangrove National Nature Reserve, China

Table 7

Pearson correlation coefficient matrix between the trace metals and major elements and fine particles in surface sediments of the ZMNNR ().

	Cu	Cd	Pb	Cr	Zn	As	Hg	Clay	Silt
Cd	−0.055
Pb	0.620	0.313
Cr	0.203	−0.060	0.040
Zn	0.339	0.085	0.396	0.565
As	0.410	0.149	0.402	−0.146	−0.001
Hg	0.155	0.327	0.223	−0.042	−0.022	0.098
Clay	0.313	−0.078	0.150	0.221	0.463	−0.199	0.219
Silt	0.203	−0.363	−0.064	0.317	0.362	−0.424	0.046	0.882
Sand	−0.273	0.178	−0.064	−0.289	−0.457	0.314	−0.082	−0.959	−0.957

The bold numbers represent the significant coefficients at the level of .