Geofluids / 2018 / Article / Tab 3

Research Article

A Regional Scale Investigation on Groundwater Arsenic in Different Types of Aquifers in the Pearl River Delta, China

Table 3

Principal component loadings for groundwater samples in fissured aquifers.

ItemPC1PC2PC3PC4PC5PC6

pH0.2370.2370.754−0.108−0.211−0.120
EC0.9440.1380.0440.079−0.0250.040
DO−0.399−0.140−0.033−0.350−0.5050.018
Eh0.037−0.354−0.531−0.056−0.156−0.242
K+0.8760.0110.055−0.051−0.171−0.077
Na+0.8460.166−0.0720.1970.1460.220
Ca2+0.7880.4740.2500.0630.0670.067
Mg2+0.7580.130−0.0490.1030.163−0.021
−0.0100.1150.0530.902−0.0930.162
Fe−0.146−0.0760.024−0.0540.8310.104
0.5630.6190.3570.1610.214−0.043
Cl0.8930.003−0.1320.1180.0650.240
0.8320.0760.2120.036−0.153−0.200
F0.0460.4340.225−0.298−0.0190.006
0.818−0.146−0.243−0.097−0.1450.274
TDS0.9300.3000.1270.0760.0730.073
TH0.8400.4330.2020.0760.0930.053
I0.2920.2320.0500.5720.361−0.130
0.2760.865−0.0030.0600.043−0.119
Al0.0770.074−0.817−0.075−0.090−0.021
Mn0.499−0.289−0.0650.4330.234−0.291
0.250−0.0580.0510.0650.0920.865
As0.0850.7970.0440.402−0.1470.050
Eigenvalue8.32.92.01.91.41.2
Explained variance (%)36.312.78.58.16.35.3
Cumulative% of variance36.348.957.565.671.877.1

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