Table 9.

Principal components analyses results.

Contaminant	PC-1 (21.0%)	PC-2 (14.3%)	PC-3 (9.2%)	PC-4 (8.2%)	PC-5 (6.0%)	PC-6 (5.3%)	PC-7 (5.2%)
PCB 8	−0.021	−0.036	0.185	0.070	0.833	0.120	0.000
PCB 18	0.025	0.811	0.098	0.122	0.167	−0.041	0.068
PCB 28	0.184	0.173	−0.103	0.752	0.035	0.149	0.122
PCB 52	0.747	0.101	−0.027	0.292	−0.054	0.137	0.042
PCB 77	−0.052	0.685	−0.185	−0.287	0.155	0.016	−0.090
PCB 81	0.538	0.471	−0.117	−0.128	0.352	−0.026	−0.175
PCB 105	0.170	0.012	−0.096	−0.048	−0.092	0.484	0.408
PCB 118	0.979	−0.052	−0.030	0.012	−0.019	0.025	0.047
PCB 123	0.979	0.004	−0.026	0.046	−0.021	0.076	0.055
PCB 126	−0.025	0.374	0.037	−0.065	0.677	−0.023	0.044
PCB 138	−0.012	0.751	0.355	0.183	−0.108	0.144	0.032
PCB 153	0.256	0.389	0.114	0.465	−0.140	0.469	0.110
PCB 187	0.975	−0.058	−0.029	0.002	−0.015	0.024	0.043
PCB 195	0.103	0.132	−0.027	0.326	0.025	−0.166	0.487
p,p'-DDT	−0.049	−0.256	−0.093	0.677	−0.002	−0.163	−0.180
p,p'-DDE	−0.045	0.006	0.557	−0.053	0.244	0.090	0.086
β-HCH	−0.041	0.050	0.892	−0.059	−0.094	−0.035	−0.083
γ-HCH	−0.027	0.087	0.881	−0.042	0.102	−0.038	−0.057
HCB	0.037	0.007	0.052	−0.005	0.204	0.783	−0.223
Heptachlor	−0.020	−0.071	0.003	−0.102	0.035	0.001	0.732

The bold means that the principal component has a high positive/negative loading for that contaminant.