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Table 5.2 Summary Statistics <strong>of</strong> Available Laboratory Analysis Result (Source: BGS- DPHE, 1999 )<br />

A-30<br />

ANNEX IIIA<br />

Source/<br />

Ref<br />

Year Study Area Well Types Sampling<br />

Strategy<br />

Analytical<br />

Technique<br />

Number <strong>of</strong><br />

Analysis<br />

Statistical Parameters<br />

Arsenic Concentration (mg/l)<br />

Range (mg/l)<br />

< 0.01; 0.01-0.05 ; >0.05<br />

Max Min Av Medi- Std Nr % Nr % Nr %<br />

an Dev.<br />

DCH/SOES All <strong>Bangladesh</strong> Different types <strong>of</strong> Patient based HG-AAS 3673 4.727

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