Characterization and assessment of potential environmental risk of tailings stored in seven impoundments in the Aries river basin, Western Romania

Table 7 Loadings of the 4 PC’s considering as variables the total metals, S and ABA parameters

Parameter	PC1	PC2	PC3	PC4
Al	0.868**	−0.248	−0.082	0.108
Fe	0.551*	0.618*	−0.048	0.096
Ca	0.000	0.904**	0.191	−0.015
K	0.797**	−0.002	−0.218	0.152
Mg	0.862**	−0.199	0.207	0.033
Na	0.869**	−0.208	−0.119	−0.027
Mn	0.836**	0.009	0.329	0.182
Ba	0.662*	−0.154	−0.196	0.518*
Zn	−0.134	0.743*	0.176	0.495
Pb	−0.273	0.872**	0.100	0.101
Cu	0.862**	−0.239	−0.095	0.001
Ni	0.060	0.613*	−0.047	0.640*
Cr	0.220	0.575*	−0.127	0.659*
As	−0.247	0.843**	0.273	0.095
Cd	−0.124	0.612*	0.421	0.533*
Co	0.855**	−0.169	0.126	0.093
Sr	0.820**	0.339	0.210	−0.043
Ti	0.856**	−0.337	−0.088	0.005
V	0.739*	−0.428	−0.092	0.044
W	−0.220	0.858**	0.245	0.015
Ag	−0.850**	−0.163	−0.292	0.145
Au	−0.811**	0.035	−0.218	0.161
NNP	0.122	0.002	0.915**	−0.023
S	−0.149	0.799**	−0.432	0.087
NP	0.093	0.232	0.890**	0.000
APP	−0.145	0.800**	−0.432	0.089
Variability (%)	47	31	12	5

**strong influence on the latent factor (>0.75); *moderate influence on the latent factor (0.50-0.75).

ISSN: 2661-801X