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Table 2 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 Fe Al Ca K
  Conc. (ppm) EF I geo CF PLI Conc. (ppm) EF I geo CF PLI Conc. (ppm) EF I geo CF PLI Conc. (ppm) EF I geo CF PLI
S1 115,000 1 0.700 2.436 2.877 25,500 0.131 −2.234 0.319 0.597 52,200 0.969 0.655 2.362 1.247 49,900 0.770 0.323 1.876 2.033
S2 156,200 1 1.142 3.309 80,100 0.303 −0.583 1.001 11,000 0.150 −1.592 0.498 46,100 0.524 0.208 1.733
S3 106,200 1 0.585 2.250 31,600 0.176 −1.925 0.395 77,000 1.549 1.216 3.484 54,600 0.912 0.453 2.053
S4 151,800 1 1.100 3.216 80,200 0.312 −0.581 1.003 11,300 0.159 −1.553 0.511 39,800 0.465 −0.004 1.496
S5 171,200 1 1.274 3.627 84,600 0.292 −0.504 1.058 10,800 0.135 −1.618 0.489 50,000 0.518 0.326 1.880
S6 163,400 1 1.207 3.462 76,100 0.275 −0.657 0.951 19,800 0.259 −0.744 0.896 57,600 0.626 0.530 2.165
S7 103,200 1 0.544 2.186 20,300 0.116 −2.563 0.254 38,700 0.801 0.223 1.751 48,500 0.834 0.282 1.823
S8 108,400 1 0.615 2.297 38,400 0.209 −1.644 0.480 36,100 0.711 0.123 1.633 63,100 1.033 0.661 2.372
S9 166,600 1 1.235 3.530 72,900 0.258 −0.719 0.911 17,200 0.220 −0.947 0.778 57,900 0.617 0.537 2.177
S10 182,400 1 1.365 3.864 55,400 0.179 −1.115 0.693 30,000 0.351 −0.144 1.357 63,000 0.613 0.659 2.368
S11 187,800 1 1.407 3.979 78,600 0.247 −0.610 0.983 21,100 0.240 −0.652 0.955 58,600 0.554 0.555 2.203
S12 169,000 1 1.255 3.581 45,700 0.160 −1.393 0.571 61,100 0.772 0.882 2.765 45,500 0.478 0.189 1.711
S13 78,900 1 0.156 1.672 20,700 0.155 −2.535 0.259 38,200 1.034 0.205 1.729 56,800 1.277 0.510 2.135
S14 177,600 1 1.327 3.763 76,000 0.252 −0.659 0.950 31,800 0.382 −0.060 1.439 62,900 0.628 0.657 2.365
S15 156,400 1 1.143 3.314 62,600 0.236 −0.939 0.783 27,700 0.378 −0.259 1.253 55,500 0.630 0.476 2.086
S16 161,000 1 1.185 3.411 87,100 0.319 −0.462 1.089 22,800 0.302 −0.540 1.032 60,700 0.669 0.605 2.282
S17 170,300 1 1.266 3.608 72,700 0.252 −0.723 0.909 23,200 0.291 −0.515 1.050 60,700 0.632 0.605 2.282
S18 94,900 1 0.423 2.011 20,400 0.127 −2.556 0.255 38,300 0.862 0.208 1.733 46,900 0.877 0.233 1.763
S19 67,100 1 −0.077 1.422 17,000 0.149 −2.819 0.213 34,300 1.092 0.049 1.552 58,100 1.536 0.542 2.184
Sampling site Ti Mn Zr Sr
  Conc. (ppm) EF I geo CF PLI Conc. (ppm) EF I geo CF PLI Conc. (ppm) EF I geo CF PLI Conc. (ppm) EF I geo CF PLI
S1 9200 0.821 0.415 2.000 2.395 3020 1.458 1.244 3.553 4.351 7300 18.726 4.927 45.625 13.515 813 1.112 0.853 2.710 2.157
S2 12,100 0.795 0.810 2.630   3960 1.408 1.635 4.659   1520 2.871 2.663 9.500   371 0.374 −0.279 1.237  
S3 9100 0.879 0.399 1.978   2680 1.401 1.072 3.153   3430 9.528 3.837 21.438   942 1.396 1.066 3.140  
S4 12,400 0.838 0.846 2.696   12,400 4.536 3.282 14.588   1400 2.721 2.544 8.750   294 0.305 −0.614 0.980  
S5 13,200 0.791 0.936 2.870   3910 1.268 1.617 4.600   1650 2.843 2.781 10.313   334 0.307 −0.430 1.113  
S6 12,100 0.760 0.810 2.630   3450 1.172 1.436 4.059   1340 2.419 2.481 8.375   558 0.537 0.310 1.860  
S7 11,500 1.143 0.737 2.500   2540 1.367 0.994 2.988   9080 25.955 5.242 56.750   702 1.070 0.642 2.340  
S8 9200 0.871 0.415 2.000   3020 1.547 1.244 3.553   950 2.585 1.985 5.938   902 1.309 1.003 3.007  
S9 11,700 0.721 0.762 2.543   3860 1.287 1.598 4.541   1700 3.010 2.824 10.625   515 0.486 0.195 1.717  
S10 17,800 1.001 1.367 3.870   4860 1.480 1.930 5.718   1320 2.135 2.459 8.250   773 0.667 0.781 2.577  
S11 12,000 0.656 0.798 2.609   4030 1.192 1.660 4.741   1480 2.325 2.624 9.250   552 0.462 0.295 1.840  
S12 15,300 0.929 1.149 3.326   9570 3.144 2.908 11.259   1700 2.967 2.824 10.625   1050 0.978 1.222 3.500  
S13 7800 1.014 0.177 1.696   2240 1.577 0.813 2.635   5710 21.349 4.572 35.688   905 1.805 1.008 3.017  
S14 13,000 0.751 0.914 2.826   4070 1.273 1.675 4.788   1180 1.960 2.298 7.375   779 0.690 0.792 2.597  
S15 12,200 0.800 0.822 2.652   3460 1.228 1.440 4.071   1390 2.622 2.534 8.688   644 0.648 0.517 2.147  
S16 12,100 0.771 0.810 2.630   4200 1.449 1.720 4.941   1000 1.832 2.059 6.250   686 0.670 0.608 2.287  
S17 11,700 0.705 0.762 2.543   3960 1.291 1.635 4.659   1100 1.905 2.196 6.875   637 0.588 0.501 2.123  
S18 7500 0.811 0.120 1.630   2130 1.246 0.740 2.506   7190 22.350 4.905 44.938   731 1.212 0.700 2.437  
S19 5920 0.905 −0.221 1.287   1870 1.548 0.553 2.200   5440 23.917 4.503 34.000   776 1.820 0.786 2.587  
Sampling site Rb Zn Sn P
  Conc. (ppm) EF I geo CF PLI Conc. (ppm) EF I geo CF PLI Conc. (ppm) EF I geo CF PLI Conc. (ppm) EF I geo CF PLI
S1 430 1.261 1.034 3.071 3.561 350 1.512 1.296 3.684 3.993 123 8.414 3.773 20.500 20.866 2210 1.296 1.074 3.157 5.71
S2 430 0.928 1.034 3.071   320 1.018 1.167 3.368   126 6.346 3.807 21.000   2310 0.997 1.138 3.300  
S3 473 1.502 1.171 3.379   363 1.698 1.349 3.821   124 9.185 3.784 20.667   4560 2.895 2.119 6.514  
S4 427 0.948 1.024 3.050   287 0.939 1.010 3.021   123 6.374 3.773 20.500   3010 1.337 1.519 4.300  
S5 520 1.024 1.308 3.714   264 0.766 0.890 2.779   102 4.687 3.503 17.000   2590 1.020 1.303 3.700  
S6 580 1.197 1.466 4.143   370 1.125 1.377 3.895   128 6.162 3.830 21.333   3850 1.589 1.874 5.500  
S7 391 1.277 0.897 2.793   423 2.036 1.570 4.453   105 8.004 3.544 17.500   4205 2.747 2.002 6.007  
S8 542 1.686 1.368 3.871   431.5 1.978 1.598 4.542   164 11.902 4.188 27.333   4560 2.836 2.119 6.514  
S9 500 1.012 1.252 3.571   440 1.312 1.627 4.632   158 7.461 4.134 26.333   4410 1.785 2.070 6.300  
S10 620 1.146 1.562 4.429   330 0.899 1.212 3.474   136 5.865 3.918 22.667   3630 1.342 1.790 5.186  
S11 640 1.149 1.608 4.571   620 1.640 2.121 6.526   132 5.529 3.874 22.000   6070 2.179 2.531 8.671  
S12 660 1.317 1.652 4.714   260 0.764 0.868 2.737   100 4.655 3.474 16.667   11400 4.548 3.441 16.286  
S13 372 1.590 0.825 2.657   415 2.613 1.542 4.368   112 11.167 3.637 18.667   8065 6.892 2.941 11.521  
S14 650 1.234 1.630 4.643   570 1.595 2.000 6.000   143 6.334 3.990 23.833   4730 1.796 2.171 6.757  
S15 538 1.160 1.357 3.843   310 0.985 1.121 3.263   120 6.036 3.737 20.000   4680 2.018 2.156 6.686  
S16 680 1.424 1.695 4.857   290 0.895 1.025 3.053   118 5.766 3.713 19.667   2400 1.005 1.193 3.429  
S17 600 1.188 1.515 4.286   420 1.225 1.559 4.421   148 6.837 4.040 24.667   2960 1.172 1.495 4.229  
S18 335 1.190 0.674 2.393   470 2.461 1.722 4.947   132 10.942 3.874 22.000   4000 2.842 1.930 5.714  
S19 325 1.633 0.630 2.321   490 3.628 1.782 5.158   107 12.544 3.572 17.833   3600 3.618 1.778 5.143