Smoke's increasing cloud across the globe
Practical Action June 16, 2006

Introduction:

It is in the world’s poorest regions that smoke is a major threat, including China, India and sub-Saharan Africa. On current trends, 200 million more people will rely on these polluting fuels by 2030. Women and children are exposed for up to seven hours a day to pollution concentrations 100 times and more above accepted safety levels. There is ample medical evidence that smoke from burning biomass fuels leads to killer diseases, such as penumonia, chronic bronchitis and lung cancer.

Cook Stove Efficiency, Health and Environmental Impacts
Biomass Lab Report
Yanxia Chen, David Pew, Dan Abbott 2002

Laboratory comparison of traditional Kenyan Jiko and improved Kenyan Jiko for Efficiency, Particulate Matter and CO.