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 |