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Table 2 Loadings of variables on VARIMAX rotated factors of the variables and factor scores for sites

From: Risk assessment of eight metals and their mixtures to aquatic biota in sediments with diffusive gradients in thin films (DGT): a case study in Pearl River intertidal zone

Loadings

Factor scores

Metal

F1

F2

F3

F4

Site

F1

F2

F3

F4

Cd

0.12

0.77

 − 0.12

0.54

S1

0.97

0.43

0.17

 − 2.33

Pb

 − 0.02

0.86

0.17

 − 0.12

S2

 − 0.16

3.11

 − 0.55

0.55

Ni

0.63

0.62

 − 0.17

0.19

S3

0.92

1.09

 − 1.56

 − 0.18

Cu

0.09

0.05

0.01

0.97

S4

1.61

0.21

 − 0.51

 − 1.37

Zn

0.27

0.82

 − 0.27

 − 0.01

S5

 − 0.70

 − 0.91

 − 1.10

 − 0.67

Co

0.75

0.54

 − 0.08

0.14

S6

 − 0.92

 − 0.61

 − 1.48

 − 0.14

Fe

0.85

0.26

 − 0.03

 − 0.16

S7

1.33

 − 0.13

0.76

0.17

Mn

0.82

 − 0.07

0.37

0.22

S8

0.53

 − 0.31

0.33

0.63

OM

0.68

 − 0.13

0.52

0.39

S9

 − 1.37

 − 0.93

 − 1.49

 − 0.45

CaCO3

 − 0.07

0.04

0.90

 − 0.07

S10

0.47

 − 0.31

 − 0.42

1.30

MZ

0.25

 − 0.15

0.88

0.04

S11

0.04

 − 0.50

0.41

1.29

     

S12

1.16

 − 0.52

0.58

 − 0.52

     

S13

 − 1.12

0.27

 − 0.69

0.27

     

S14

0.06

 − 0.42

0.65

 − 0.25

     

S15

 − 0.90

0.43

 − 0.33

 − 0.06

     

S16

0.93

 − 1.07

 − 0.14

2.45

     

S17

0.18

 − 0.65

 − 0.41

 − 0.07

     

S18

 − 0.43

1.83

1.19

0.88

     

S19

 − 1.83

 − 0.36

1.24

 − 0.43

     

S20

0.61

 − 0.78

1.33

 − 0.49

     

S21

 − 1.38

0.12

2.01

 − 0.58

  1. OM: organic matter; MZ: median grain size