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Table 3 Concentration, enrichment factor, geoaccumulation index, contamination factor, and pollution load index of metals for surface soil

From: Spatial distribution and source identification of heavy metal pollution in roadside surface soil: a study of Dhaka Aricha highway, Bangladesh

Sampling site Ba
  Concentration (ppm) EF I geo CF PLI
S1 1520 1.076 0.805 2.621 2.589
S2 1670 0.870 0.941 2.879
S3 430 0.330 −1.017 0.741
S4 1500 0.804 0.786 2.586
S5 1350 0.642 0.634 2.328
S6 1780 0.887 1.033 3.069
S7 1440 1.136 0.727 2.483
S8 1680 1.261 0.949 2.897
S9 1610 0.786 0.888 2.776
S10 1680 0.750 0.949 2.897
S11 1680 0.728 0.949 2.897
S12 1880 0.905 1.112 3.241
S13 1370 1.413 0.655 2.362
S14 1930 0.884 1.150 3.328
S15 1600 0.833 0.879 2.759
S16 1650 0.834 0.923 2.845
S17 1910 0.913 1.134 3.293
S18 1550 1.329 0.833 2.672
S19 1350 1.637 0.634 2.328