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

Table 7

Heavy metal contents and background values in sediments of Jiuzhen Bay (µg/g dw).

Heavy metal type	Average value (range)	Background value	Reference
Cu	8.6 (1.1–21)	9.8	[20]
Zn	57 (9–134)	55
Cd	0.062 (0.016–0.139)	0.056
Pb	136 (11–946)	9
As	6.3 (3.7–8.9)	15	[34]
Hg	0.028 (0.004–0.087)	0.025	[35]