Sep 1, 2001

Indoor air pollution from biomass combustion and acute respiratory infections in Kenya: an exposure-response study

Lancet
M Ezzati, D M Kammen

Abstract

Acute respiratory infections (ARI) are the leading cause of the global burden of disease and have been causally linked with exposure to pollutants from domestic biomass fuels in less-developed countries. We used longitudinal health data coupled with detailed monitoring of personal exposure from more than 2 years of field measurements in rural Kenya to estimate the exposure-response relation for particulates smaller than 10 mm in diameter (PM(10)) generated from biomass combustion. 55 randomly-selected households (including 93 infants and children, 229 individuals between 5 and 49 years of age, and 23 aged 50 or older) in central Kenya were followed up for more than 2 years. Longitudinal data on ARI and acute lower respiratory infections (ALRI) were recorded at weekly clinical examinations. Exposure to PM(10) was monitored by measurement of PM(10) emission concentration and time-activity budgets. With the best estimate of the exposure-response relation, we found that ARI and ALRI are increasing concave functions of average daily exposure to PM(10), with the rate of increase declining for exposures above about 1000-2000 mg/m(3). After we had included high-intensity exposure episodes, sex was no longer a significant predictor of A...Continue Reading

Mentioned in this Paper

Technology Transfer
Cooking
Acute Respiratory Infections
Air Pollutants, Environmental
Logistic Regression
Acute Disease
Rietveld Refinement
Respiratory Tract Infections
Upper Respiratory Infections
Housing

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