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Table 6

Statistical description of heavy metal concentration in Puthimari River

ParametersFeMnPbCuZn
Max 1.71 0.57 0.19 0.05 0.03 
Min 0.001 
Mean 0.79 0.14 0.04 0.02 0.01 
Variance 0.32 0.05 0.01 0.00 0.00 
Skewness 0.49 2.03 2.11 1.18 1.24 
Kurtosis 1.18 4.23 4.46 0.50 − 0.29 
SD 0.57 0.22 0.08 0.02 0.01 
COV 0.72 1.61 1.90 0.99 1.60 
ParametersFeMnPbCuZn
Max 1.71 0.57 0.19 0.05 0.03 
Min 0.001 
Mean 0.79 0.14 0.04 0.02 0.01 
Variance 0.32 0.05 0.01 0.00 0.00 
Skewness 0.49 2.03 2.11 1.18 1.24 
Kurtosis 1.18 4.23 4.46 0.50 − 0.29 
SD 0.57 0.22 0.08 0.02 0.01 
COV 0.72 1.61 1.90 0.99 1.60 
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