The Distributional Characteristics of Heavy Metal in Jiangsu Province Shoal Sea

Table 5

Heavy metal content and background values in Xinyanggang tidal land.

Area	Pb (μg/g)	Zn (μg/g)	Cu (μg/g)	Cr (μg/g)	Li
Background value in Xinyanggang tidal flat	21.05	88.5	21.35	46.8	38
Mean value in Xinyanggang tidal flat	65.83	68.95	20.84	52.83	31.49
Maximum value in Xinyanggang tidal flat	71.88	73.14	22.87	56.28	33.78
Minimum value in Xinyanggang tidal flat	56	64.02	18.14	48.42	30.05
Background value in north shore tidal flat of Changjiang estuary	22.1	112	27.7	33.6	—
Background value in eastern China tidal flat	20	65	15	60	38
Marine survey value in Jiangsu tidal flat heavy metal survey in 1986	25	80	30	45.7
Marine baseline survey value of Dafeng County in 1997	28.06	—	—
𝐼geo	1.06	−0.954	−0.62	−0.409	−0.857
Pollution degree	Heavier pollution	No; pollution	No pollution	No; pollution	No; pollution
𝐾SEF	2.774	−0.06	0.192	0.362
EF	3.774	0.94	1.178	1.362
Enrichment degree	Strong enrichment	Proximity enrichment	Proximity enrichment	Proximity enrichment