Environmental Sciences Europe

Table 6 The result of PCA/FA for entire data set

From: Heavy metal pollutants and their spatial distribution in surface sediments from Thondi coast, Palk Bay, South India

	PC1	PC2	PC3
Component matrix^a
Eigen value	2.463	2.023	1.270
% of Variance	2.034	22.596	49.965
Cumulative %	1.321	14.682	64.646
Loading of variances
Fe	−0.178	0.771^b	0.017
Mn	0.329	0.680^b	0.208
Cr	−0.371	0.211	0.811^b
Cu	0.270	0.126	0.676^b
Ni	0.123	−0.590	0.721 ^b
Cd	0.568^b	0.293	−0.085
Pb	0.206	0.612 ^b	−0.066
Zn	0.603^b	0.203	0.174

^aExtraction method: principal component analysis
^bLoading values of being equal to or greater than 0.5

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