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Table 3 EF, CF, Igeo,\({\mathrm{E}}_{\mathrm{r}}^{\mathrm{i}}\), and RI (min, max, and ave) values of the heavy metals contaminants in the sediments

From: Heavy metal pollutants and their spatial distribution in surface sediments from Thondi coast, Palk Bay, South India

Index Fe Mn Cr Cu Ni Cd Pb Zn
EF Min 0.41 0.30 1.25 0.41 0.18 1.52 0.52 1.77
Max 1.09 0.89 3.38 1.31 0.40 9.97 1.21 3.98
Ave 0.65 0.50 2.00 0.67 0.25 4.12 0.76 2.48
CF Min 0.76 0.45 2.31 0.56 0.27 2.75 0.82 3.06
Max 1.11 0.94 3.78 1.53 0.48 12.25 1.56 4.26
Ave 0.94 0.73 2.90 0.99 0.37 5.83 1.13 3.61
Igeo Min 9.2 5.43 4.19 3.06 3  − 1.13 1.93 4
Max 9.37 5.75 4.4 3.49 3.25  − 0.49 2.21 4.14
Ave 9.29 5.63 4.28 3.28 3.14  − 0.85 2.06 4.07
\({E}_{\mathrm{r}}^{\mathrm{i}}\) Min  −   −  1 3 1 82.5 4 3
Max  −   −  3 8 2.015 367.5 8 4
Ave  −   −  2.08 5 1.81 174.88 5.58 3.71
RI  −   −   −  48 119 44.3 4197 135 87