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Association of Lung Function with Declining Ambient Air Pollution
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Journal Article
Association of Lung Function with Declining Ambient Air Pollution
2003
Overview
Recent studies have found a declining prevalence of respiratory infections in East German children, along with a tremendous improvement of air pollution since 1990. The present study evaluates the effects of improved air quality on lung function. Three consecutive cross-sectional surveys of schoolchildren ages 11-14 years from three communities in East Germany were performed in 1992-1993, 1995-1996, and 1998-1999. Lung function tests were available from 2,493 children. The annual mean of total suspended particulates (TSP) declined from 79 to 25 μ g/ m3, whereas levels for sulfur dioxide declined from 113 to 6 μ g/ m3. Mean forced vital capacity (FVC) and forced expiratory volume in 1 sec ( FEV1) of the children increased from 1992-1993 to 1998-1999. The adjusted percent change of the geometric mean of FVC was 4.7% for a 50 μ g/ m3decrease of TSP (p = 0.043) and 4.9% for a decrement of 100 μ g/ m3SO2(p = 0.029). Effects on FEV1were smaller and not statistically significant. Our study indicates that a reduction of air pollution in a short time period may improve children's lung function.
Publisher
National Institute of Environmental Health Sciences. National Institutes of Health. Department of Health, Education and Welfare,National Institute of Environmental Health Sciences
