Finding F-0827

“For households utilizing a traditional open burning mud stove, the median daily average PM2.5 concentration was over 40 times higher than the WHO guideline for daily exposure, and the median daily average CO concentration was about 30% higher than the WHO recommended guideline for daily exposure.”

Chen et al. Estimating Indoor PM2.5 and CO Concentrations in Households in Southern Nepal: The Nepal Cookstove Intervention Trials (2016). PloS one. Page 15. CKB 7109

Structure

Source: Biomass fuel
Factor: Carbon monoxide (CO)
Population: women and young children
Setting: kitchen, NP (March 2010 to October 2011)
Study design: measurement and estimation study inside the Nepal Cookstove Intervention Trial Phase I, southern Nepal: continuous daily PM2.5 and carbon monoxide in the area near the stove in about 3000 households with traditional open-burning mud stoves, March 2010 to October 2011, summarised in four metrics with mixed models (class 4)
Effect: ratio 30
Caveat: stated as about 30 % above the guideline, so the figure is a percentage, not a multiple

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