Long-term exposure to biomass fuel smoke indoors is causally associated with chronic obstructive pulmonary disease (COPD)1 but the effect of acute exposures has not been studied. Should acute effects occur, this might increase the risk of an exacerbation of pre-existing lung disease. We studied acute changes in lung function and oxygen saturation in individuals exposed regularly to biomass smoke in Nepal.
We are extremely grateful to Pradeep Raj Dali for his help in the selection of the sampling locations and coordinating with the house members. We would like to thanks all the participants for taking part in this study.