Distribution and Health Risk Assessment of Some Trace Elements in Runoff from Different Types of Athletic Fields
Table 4
Pearson’s correlation coefficients for correlation between seven metals and metalloid concentrations in athletic field runoffs.
Artificial
As
Cu
Zn
Cr
Pb
Mn
Turf
Cu
0.111
1
n = 24
Zn
0.653
0.301
1
Cr
0.785
0.504
0.919
1
Pb
0.686
0.756
0.695
0.895
1
Mn
0.925
0.080
0.799
0.854
0.686
1
Cd
0.248
0.776
0.473
0.640
0.795
0.299
Plastic
Cu
0.888
1
Runway
Zn
0.730
0.831
1
n = 22
Cr
0.899
0.870
0.875
1
Pb
0.711
0.636
0.406
0.686
1
Mn
0.774
0.708
0.523
0.790
0.960
1
Cd
0.612
0.610
0.485
0.512
0.545
0.477
Badminton
Cu
0.519
1
Court
Zn
0.687
0.586
1
n = 22
Cr
0.521
0.584
0.701
1
Pb
0.660
0.704
0.705
0.952
1
Mn
0.657
0.798
0.844
0.877
0.933
1
Cd
0.878
0.362
0.472
0.230
0.402
0.380
Basketball
Cu
0.638
1
Court
Zn
0.374
0.837
1
n = 24
Cr
0.614
0.886
0.717
1
Pb
0.589
0.640
0.502
0.869
1
Mn
0.687
0.959
0.792
0.954
0.784
1
Cd
0.383
0.472
0.535
0.646
0.774
0.620
Tennis
Cu
0.893
1
Court
Zn
0.875
0.820
1
n = 23
Cr
0.934
0.885
0.904
1
Pb
0.746
0.773
0.764
0.748
1
Mn
0.876
0.818
0.840
0.881
0.775
1
Correlation is significant at the 0.01 level (2-tailed). Correlation is significant at the 0.05 level (2-tailed). The range of absolute value of r is 0.00–0.19 (very weak); 0.20–0.39 (weak); 0.40–0.59 (moderate); 0.60–0.79 (strong); 0.80–1.0 (very strong) [20].
