Risk Assessment of Heavy Metals Pollution in Agricultural Soils of Siling Reservoir Watershed in Zhejiang Province, China

Table 5

Summary of contamination factor and degree for metals in the soil during summer and winter.

Element	Summer			Winter
	Min	Max	Mean	Min	Max	Mean
Zn	2.73	20.70	9.87	11.53	20.93	15.87
Cu	0.01	0.87	0.37	1.21	6.49	2.74
Mn	0.05	0.81	0.40	0.52	1.76	1.18
Fe	0.34	0.67	0.51	0.07	0.48	0.22
Cr	0.03	0.52	0.31	0.18	1.46	0.77
Cd	0.03	5.06	1.60	0.50	30.77	16.96
Pb	0.05	6.55	3.31	5.94	17.49	9.36
𝐶deg	3.23	35.18	16.38	19.96	79.38	47.10