Distribution and Ecologica Risk of Sediment Heavy Metals in the Water-Level-Fluctuation Zone of the Shawan River Section of Yelang Lake

Table 4

Spearman correlation coefficients of bulk sediment content of heavy metals (as a mass fraction) with sediment grain-size fractions.

	Pb	Cr	Cd	Cu	Zn	Mn
>1 mm	0.143	−0.607	0.036	−0.107	0.357	0.107
0.22–1 mm	−0.214	0.464	−0.500	0.214	−0.75	0.143
0.125–0.22 mm	−0.286	−0.357	0.071	0.679	−0.571	0.107
0.063–0.125 mm	−0.321	0.357	−0.429	−0.036	−0.821	−0.750
<0.063 mm	−0.357	−0.286	0.000	−0.286	−0.464	−0.071