Table 2.

The concentration of heavy metals in marine fish from Zhejiang province (mg/kg).

Elements	n	Mean ± SDa	P97.5a	Average range	MACb	No. of > MAC
As	643	0.783	3.445	0.315–3.172	–	–
Cd	652	0.009	0.046	0.002–0.04	0.1	1
Cr	189	0.114	0.391	0.016–0.173	2	0
Hg	650	0.031	0.138	0.009–0.060	–	–
Pb	633	0.043	0.261	0.021–0.082	0.5	3

^aTarget analytes with concentrations lower than LOD were treated as one-half of LOD when calculating the mean values; SD, standard deviation.

^bMaximum allowable concentrations of contaminants in foods.