Spatial Variability of Metals in Surface Water and Sediment in the Langat River and Geochemical Factors That Influence Their Water-Sediment Interactions
Table 7
Pearson correlation analysis between pH and conductivity with trace metals in water and sediment at Langat River, Selangor.
pH (w)
Sal (w)
As (w)
Cd (w)
Co (w)
Cr (w)
Ni (w)
Pb (w)
pH (s)
Sal (s)
As (s)
Cd (s)
Co (s)
Cr (s)
Ni (s)
Pb (s)
pH (w)
1
Sal (w)
0.669**
1
As (w)
0.494**
0.963**
1
Cd (w)
−0.026
−0.062
0.002
1
Co (w)
−0.377**
0.236*
0.384**
−0.003
1
Cr (w)
0.408**
0.794**
0.859**
0.041
0.301**
1
Ni (w)
0.322**
0.898**
0.941**
−0.029
0.603**
0.757**
1
Pb (w)
−0.197
−0.323**
−0.290**
0.327**
0.058
−0.210*
−0.260*
1
pH (s)
0.501**
0.894**
0.886**
−0.044
0.355**
0.762**
0.868**
−0.393**
1
Sal (s)
0.529**
0.907**
0.903**
0.045
0.415**
0.793**
0.882**
−0.282**
0.884**
1
As (s)
−0.281**
−0.494**
−0.527**
0.169
−0.168
−0.456**
−0.435**
0.062
−0.354**
−0.493**
1
Cd (s)
0.068
0.056
0.033
0.113
−0.018
−0.084
0.043
−0.001
0.104
−0.111
0.357**
1
Co (s)
0.207*
0.409**
0.370**
0.087
0.253*
0.227*
0.475**
0.114
0.340**
0.313**
0.242*
0.028
1
Cr (s)
−0.009
0.084
0.052
0.075
0.148
−0.065
0.180
−0.126
−0.011
−0.017
0.437**
0.026
0.640**
1
Ni (s)
0.205
0.433**
0.393**
0.154
0.267*
0.256*
0.514**
0.040
0.385**
0.334**
0.270*
0.096
0.908**
0.743**
1
Pb (s)
−0.266*
−0.509**
−0.571**
0.068
−0.193
−0.565**
−0.461**
0.071
−0.422**
−0.533**
0.860**
0.178
0.221*
0.543**
0.228*
1
**Correlation is significant at the 0.01 level (2-tailed).
*Correlation is significant at the 0.05 level (2-tailed).
