Seasonal Source Apportionment of Heavy Metals and Physicochemical Parameters: A Case Study of Sapanca Lake Watershed

Table 2

PCA/FA varimax rotated results for winter, spring, summer, and autumn.

PCA/FA
Component
Winter	1	2	3	4	5	6
Cd	0.978
Co	0.942
Cu	0.881
Pb	0.878
Cr	0.644
pH	−0.595
TDS		0.983
SAL		0.982
EC		0.960
Ba		0.896
Al			0.965
Fe			0.927
Ni			0.706
T				0.787
TOC				0.706
As				0.613
Zn					0.922
SS						0.928
% var	27.838	20.824	13.585	8.598	6.990	6.252
% total	27.838	48.662	62.248	70.846	77.835	84.087
Spring	1	2	3	4	5	6
TDS	0.971
SAL	0.969
EC	0.968
Zn		0.923
Cu		0.886
SS		0.841
Ba		0.781
pH			0.813
Co			−0.801
Cd			0.702
Cr				0.881
Ni				0.871
T					−0.739
Al					0.676
Fe					0.589
Pb					0.463
As						0.904
TOC						0.716
% var	19.417	18.463	13.464	11.080	9.586	8.376
% total	19.417	37.881	51.344	62.425	72.011	80.388
Summer	1	2	3	4	5	6
Zn	0.829
Ni	0.815
Cu	0.737
Cr	0.672
T		0.835
Cd		−0.830
Pb		−0.515
Ba			0.895
SAL			0.851
EC			0.734
SS				−0.666
pH				0.620
As				0.593
Al					0.954
Co					0.783
TDS						0.824
TOC						0.523
Fe						0.457
% var	17.892	13.807	13.773	12.946	9.284	8.347
% total	17.892	31.699	45.472	58.418	67.702	76.048
Autumn	1	2	3	4	5	6
TDS	0.965
EC	0.959
SAL	0.954
Ba	0.751
pH	−0.585
As	−0.514
T		−0.838
SS			0.808
Al			0.703
Co			0.651
Zn			0.453
Cd				0.946
Pb				0.915
Cu					0.777
TOC					0.701
Fe					0.699
Ni						0.877
Cr						0.804
% var	21.843	12.901	12.548	12.546	10.202	9.916
% total	21.843	34.744	47.292	59.838	70.041	79.956