Health Risk Assessment of Heavy Metals in Soils before Rice Sowing and at Harvesting in Southern Jiangsu Province, China

Table 3

Concentration of heavy metals of roots, stem, leaves, grain, rice husk, and polished round-grained rice.

	Root (mg/kg)	Stem (mg/kg)	Leaves (mg/kg)	Grain (mg/kg)	Rice husk (mg/kg)	Polished round-grained rice (mg/kg)	AF value	TF value
Cr	1.982 ± 0.075	0.4320 ± 0.375	0.5826 ± 0.018	0.5321 ± 0.062	0.2179 ± 0.037	0.2099 ± 0..034	0.04	0.29
Cd	1.500 ± 0.125	0.0930 ± 0.018	0.1871 ± 0.025	0.1698 ± 0.004	0.0770 ± 0.009	0.0928 ± 0.008	3.16	0.12
Pb	13.75 ± 0.750	3.191 ± 0.153	1.431 ± 0.206	3.569 ± 0.370	1.354 ± 0.284	2.216 ± 0.553	0.25	0.10
Zn	22.24 ± 0.588	13.29 ± 1.595	13.80 ± 0.740	24.060 ± 1.522	8.614 ± 0.940	15.45 ± 0.942	0.28	0.62
Cu	5.524 ± 0.802	1.129 ± 0.128	3.145 ± 0.127	3.132 ± 0.021	1.509 ± 0.038	1.623 ± 0.048	0.42	0.57
Hg	0.0042 ± 0.004	0.0018 ± 0.005	0.0024 ± 0.006	0.0015 ± 0.010	0.0021 ± 0.012	0.0019	0.03	0.57
As	0.5154 ± 0.091	0.0117 ± 0.074	0.2145 ± 0.096	0.2754 ± 0.074	0.3014 ± 0.845	0.4245	0.07	0.42

All values are mean of three replicates (n = 3).