Heavy Metals Concentration in Sardina pilchardus (Walbaum, 1792) from the Moroccan Mediterranean Coast and Potential Human Health Risk Assessment

Table 7

First two principal components explaining 78.07% of the total variance of the sardine, Sardina pilchardus (Walbaum, 1792), contamination level from three coast sites in the Mediterranean Moroccan Sea.

Variables	Principal component
	1	2
As	0.853	0.337
Pb	0.848	−0.269
Cd	0.685	−0.410
Hg	0.504	0.729
EWIAs	0.853	0.337
EWIPb	0.848	−0.269
EWICd	0.719	−0.490
EWIHg	0.504	0.729
THQAs	0.853	0.337
THQPb	0.848	−0.269
THQCd	0.719	−0.490
THQHg	0.504	0.729
CRAs	0.853	00.337
CRPb	0.848	−0.269
CRCd	0.719	−0.490

As: arsenic; Pb: lead; Cd: cadmium; Hg: mercury; EWI: estimated weekly intake; THQ: target hazard quotient; CR: carcinogenic risk. The values represent the correlations of variables with the first two principal components.