Assessment of Heavy Metal Pollution Characteristics andEcological Risk in Soils around a Rare Earth Mine in Gannan

Table 6

Nemerow pollution index of the heavy metals in soils.

Sampling time
	Cu	Pb	Zn	Cr	Ni	Cd	As
High water period	0.68	2.03	0.39	0.66	0.36	0.71	0.24
Dry period	0.63	2.19	0.40	0.36	0.32	1.22	0.22