1. Indoor air pollution from biomass fuel smoke is a major health concern in the developing world 
Duncan G. Fullerton, Nigel Bruce, Stephen B. Gordon 
Transactions of the Royal Society of Tropical Medicine and Hygiene 
Volume 102, Issue 9, Pages (September 2008)
DOI: /j.trstmh
Copyright © 2008 Royal Society of Tropical Medicine and Hygiene Terms and Conditions

2. Figure 1
Pie chart showing total global exposure to particulate matter air pollution. Prepared using data from Smith (1993) by kind permission.
Transactions of the Royal Society of Tropical Medicine and Hygiene  , DOI: ( /j.trstmh )
Copyright © 2008 Royal Society of Tropical Medicine and Hygiene Terms and Conditions

3. Figure 2
Pathways relating smoke exposure and childhood health. FEV1: forced expiratory volume in 1s; FVC: forced vital capacity. Reproduced with kind permission of J.D. Haas: ‘Potential mechanisms for the effect of indoor cooking smoke on fetal growth’. Invited paper presented at WHO Workshop on ‘The Impact of Indoor Cooking Smoke on Health’, Geneva, Switzerland, 26–29 February 1992.
Transactions of the Royal Society of Tropical Medicine and Hygiene  , DOI: ( /j.trstmh )
Copyright © 2008 Royal Society of Tropical Medicine and Hygiene Terms and Conditions

4. Figure 3
(A) Traditional open fire and (B) plancha stove. Images by Nigel Bruce.
Transactions of the Royal Society of Tropical Medicine and Hygiene  , DOI: ( /j.trstmh )
Copyright © 2008 Royal Society of Tropical Medicine and Hygiene Terms and Conditions