Spatial Variations and Potential Risks of Heavy Metals in Seawater, Sediments, and Living Organisms in Jiuzhen Bay, China

Table 10

The ecological risk index () and potential ecological risk index (RI) values for different heavy metals in sediments at all stations within Jiuzhen Bay.

Station	ECu	EZn	EAs	ECd	EHg	EPb	RI
A1	10.66	2.43	4.73	25.97	139.5	39.1	222.4
B1	1.84	0.61	4.48	6.19	16.3	526.7	556.1
B2	4.77	1.19	4.69	13.41	39.4	18.9	82.3
B3	9.61	2.01	5.91	24.28	91.5	33.4	166.7
C1	1.20	0.40	3.61	4.22	10.2	11.9	31.6
C2	9.23	1.71	5.44	19.22	83.8	27.4	146.8
E1	1.16	0.64	3.39	3.75	9.3	9.4	27.6
E2	0.68	0.17	3.00	3.00	5.8	6.3	18.9
E3	0.54	0.24	2.44	5.53	6.1	6.6	21.5
Average	4.41	1.04	4.19	11.73	44.7	75.5	141.5