The Distributional Characteristics of Heavy Metal in Jiangsu Province Shoal Sea

Table 4

Heavy metal content of surface samples in Xingyanggang tidal flat.

Elements	Surface samples of Sheyang County		Surface samples in Xingyanggang tidal flat
	Mean value	Variation scope	Mean value	Variation scope
Zn	72.2	79.19~63.92	68.95	73.14~64.02
Pb	65.76	71.54~58.7	65.83	71.88~56.01
Co	14.28	15.37~12.99	14.27	15.53~13.09
Ni	22.96	25.08~19.52	22.52	23.85~21.3
Mn	481	506.6~449.7	443.98	477.1~397.8
Cr	53.6	58.31~48.79	52.83	56.28~48.42
Cu	27.77	29.98~24.07	20.84	22.87~18.14
Li	32.8	36.39~28.87	31.49	33.78~30.05