Region | Sample-1 | Sample-2 | Sample-3 | Average |
Sadar | 0 mg/L (1000 feet deep supply water sample) | 1 mg/L (500 feet deep motor water sample) | 2 mg/L (450 feet deep tube well water sample) | 1 mg/L |
Kabirhat | 2 mg/L (60 feet deep tube well water sample) | 1 mg/L (70 feet deep tube well water) | 4 mg/L (150 feet deep tube well water) | 2.33 mg/L |
Chatkhil | 2 mg/L (35 feet deep tube well water sample) | 3 mg/L (256 feet deep tube well water sample) | 4 mg/L (800 feet deep tube well water sample) | 3 mg/L |