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Table 2 Heavy metal concentration (mg/l) in Buriganga river water

From: Contamination status and health risk assessment of trace elements in foodstuffs collected from the Buriganga River embankments, Dhaka, Bangladesh

Metals Safe limita Mean Median Max Min S.D
Cu 0.20 0.058 0.067 0.081 0.025 0.022
Co 0.05 0.014 0.016 0.019 0.005 0.005
Fe 5 31.091 34.330 39.313 20.683 7.885
Zn 2 0.234 0.187 0.427 0.167 0.109
Mn 0.2 1.560 1.56 1.56 <0.74 0.698
  1. asafe limit of toxic heavy metals in irrigation water for agricultural purpose (Pescod [1992]).