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Table 1 Drinking water arsenic contamination exposure

From: Groundwater arsenic and education attainment in Bangladesh

Arsenic level (ppb) Wells % above 2000a Households % above levelb 2009 Households % above levelc 2012 Male youths % above leveld 2006
10 48 32 24.8 62
50 25 13.4 12.5 34
100 16 6.2 18
200 9 3.4 2.8 8
300 5.1 1.8 2
  1. ppb parts per billion
  2. aSource: [27], Table 6.7
  3. bSource: [7], Table 1
  4. cSource: [29], Table WQ.2
  5. dAuthors’ calculations from 2006 MICS and NHS data