Fig 1.
Map of sampling stations the Cikijing River.
Spatial information were obtained from http://eros.usgs.gov/#.
Table 1.
Water quality category based on pollution index value.
Table 2.
Heavy metal mobility level based on Log Koc value [25].
Table 3.
Types of heavy metal compounds based on Log Kow values [27].
Table 4.
Categories of heavy metal pollution in waters based on Igeo [30] and PLI values [29].
Table 5.
Factors of heavy metal toxic response and ecological risk categories of heavy metals in waters based on PERI values [31].
Table 6.
Results of measurement of heavy metal concentrations (Cr, Cu, Pb, and Zn) in water compartment.
Table 7.
Pollution index results based on heavy metals Cr, Cu, Pb, and Zn in the Cikijing River in the measurement of the rainy and dry seasons.
Fig 2.
Comparison of heavy metal concentrations in water compartments in the rainy and dry seasons.
Fig 3.
Comparison of heavy metal concentrations (Cr, Cu, and Pb) in sediment compartments in the rainy and dry seasons.
Fig 4.
Comparison of heavy metal concentrations (Zn) in sediment compartments in the rainy and dry seasons.
Table 8.
Values of Koc and Log Koc of heavy metals Cr, Cu, Pb, and Zn in the Cikijing River.
Table 9.
Values of Kow and Log Kow of Heavy Metals Cr, Cu, Pb, and Zn in the Cikijing River.
Table 10.
Reference quality standards for heavy metals in sediments used.
Fig 5.
Rainy season geoaccumulation index results.
Fig 6.
Dry season geoaccumulation index results.
Fig 7.
Visualization of PLI results for the Cikijing River in the rainy and dry seasons.
Fig 8.
Visualization of potential ecological risks in the Cikijing River in the rainy and dry seasons.
Table 11.
Results of the potential ecological risk index of heavy metals in the rainy and dry seasons.
Table 12.
Matrix analysis of differences in geoaccumulation index, pollutant load index, and ecological risk potential index.
Table 13.
Homogeneity test of Pb, TSS, and DO concentration data in the dry season.
Table 14.
Correlation test results of physical-chemical parameters on heavy metal concentrations in the rainy season.
Table 15.
Correlation test results of physical-chemical parameters on heavy metal concentrations in the dry season.
Table 16.
Homogeneity test of Cr and total organic matter data in sediment during the rainy season.
Table 17.
Homogeneity test of heavy metal concentration data (Cr, Cu, and Pb), total organic matter, and sediment texture in the dry season.
Table 18.
Pearson correlation test results of the relationship between heavy metal Cr concentration and total organic matter in the rainy season.
Table 19.
Spearman correlation test results of the relationship between heavy metal concentrations (Cr, Cu, Pb, Zn) on total organic matter and sediment texture in the rainy season.
Table 20.
Pearson correlation test results of the relationship between heavy metal Cr concentrations on total organic matter and sediment texture in the dry season.
Table 21.
Spearman correlation test results of the relationship between heavy metal concentrations (Cu, Pb, Zn) on total organic matter and sediment texture in the dry season.
Table 22.
The results of measurements of sediment texture at sampling locations both during the rainy and dry seasons.
Table 23.
Relationship between dissolved heavy metal concentrations and physical-chemical parameters.
Table 24.
Relationship between heavy metal concentrations in sediment compartments and physical-chemical parameters.