Figure 2.

Households using solid fuels as the primary cooking fuel, by WHO region, 2010. Source: WHO Global Health Observatory: http://gamapserver.who.int/mapLibrary/Files/Maps/Global_iap_2010_total.png webcite

Bruce et al. BMC Public Health 2013 13(Suppl 3):S8   doi:10.1186/1471-2458-13-S3-S8