Browsing downloads in "Bangladesh: DPHE/BGS National Hydrochemical Survey"
The aims of the survey were to: make maps showing the regional distribution of arsenic and other elements in Bangladesh groundwaters and provide estimates of the percentage of wells exceeding various limits for arsenic and other elements.
Large, coloured point-source arsenic map for printing
This map displays point-source arsenic data and includes detailed administrative boundaries (to upazila level), basic geology, rivers etc and is best printed at A2 size (height=59.4 cm, width=42.0 cm) or larger.
[Adobe Acrobat PDF 2.67 MB]
Simplified geology of Bangladesh (after Geological Survey of bphase2/USGS (1990) map)
Point-source and smoothed maps
[Adobe Acrobat PDF 605 KB]