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Table 11 Statistical parameters of the geo-accumulation index

From: Estimation of pollution indices and hazard evaluation from trace elements concentration in coastal sediments of Kerala, Southwest Coast of India

Statistical parameter As Cd Cu Cr Mn Zn Ni Pb Ti
Minimum − 16.44 − 10.89 − 12.70 − 11.75 − 13.31 − 10.00 − 13.78 − 12.43 − 16.54
Maximum − 4.96 − 8.94 − 10.05 − 7.48 11.04 − 4.79 11.70 − 6.74 − 11.51
Mean − 9.38 − 9.96 − 11.30 − 9.50 − 4.57 − 8.37 − 9.16 − 9.91 − 14.05
Median − 9.715 − 9.85 − 11.26 − 9.65 − 9.39 − 8.51 − 11.46 − 9.81 − 13.99
Std. deviation 2.73 0.62 0.84 1.21 9.12 1.28 7.42 1.50 1.51
Skewness − 0.705 0.059 − 0.139 0.024 1.029 1.229 2.626 0.121 0.019
Kurtosis 1.336 − 1.135 − 1.025 − 0.470 − 0.910 2.341 5.732 − 0.165 − 0.833