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HERO ID
832644
Reference Type
Journal Article
Title
Effects of ambient air pollution on pulmonary function among schoolchildren
Author(s)
Lee, YL; Wang, WH; Lu, CW; Lin, YH; Hwang, BF
Year
2011
Is Peer Reviewed?
Yes
Journal
International Journal of Hygiene and Environmental Health
ISSN:
1438-4639
EISSN:
1618-131X
Volume
214
Issue
5
Page Numbers
369-375
Language
English
PMID
21680243
DOI
10.1016/j.ijheh.2011.05.004
Web of Science Id
WOS:000295553600004
Abstract
Literature has shown adverse effects of ambient air pollution exposure on various asthma related outcomes in childhood. However, the associated evidence on pulmonary function effects is still inconsistent. We conducted a population-based study comprised of seventh-grade children in 14 Taiwanese communities. Pulmonary function tests and questionnaires were completed on 3957 subjects. We evaluated the effects of ambient air pollution exposures based on the data collected in 2005-2007 by existing air monitoring stations. Multiple linear mixed effect models were fitted to estimate the relationship between community pollutant levels and pulmonary function indices. After adjustment for individual-level confounders, pulmonary function differed only slightly between communities with different levels of air pollution. We found greater effects of ambient air pollutants on pulmonary function for boys than for girls. Among boys, traffic-related pollutants CO, NOx, NO(2), and NO were generally associated with chronic adverse effects on FVC and FEV(1), and subchronic adverse effects mainly on maximal mid-expiratory flow (MMEF) and peak expiratory flow rate. Among girls, only NOx and NO(2) showed subchronic adverse effects on MMEF. Although effect estimates of SO(2), PM(10), and PM(2.5) were generally negative for boys, none achieved statistical significance. Our data suggests that ambient traffic-related pollution had chronic adverse effects on pulmonary function in schoolchildren, especially for boys.
Keywords
Children; Air pollution; Nitrogen oxides; Carbon oxide; Ozone; Sulfur dioxide; PM(2.5); PM(10); Pulmonary function; Epidemiology
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