Carmel Raz-Maman, Nili Borochov-Greenberg, Rafael Y. Lefkowitz, Boris A. Portnov
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Evaluating the effect of long-term exposure to ozone on lung function by different metrics
Background
The majority of studies examining long-term exposure to ambient ozone have utilized averages as the exposure parameter. However, averaging ozone exposures may underestimate the impact of ozone peaks and seasonality. The current study aimed to examine the association between ozone exposure evaluated by different exposure metrics and lung function in healthy adolescents.
Methods
We conducted a cross-sectional study among 665 healthy adolescent males living within a 2 km radius of an ozone monitoring station. Multiple ozone exposure metrics were evaluated, including two-year and peak-season averages, peaks, peak intensity, and the total excess of peak level. Lung function was measured using FEV1, FVC, and FEV1/FVC ratio.
Results
The peak intensity during the ozone peak-season was associated with the largest decrease in the FEV1/FVC ratio, -1.52% (95%CI: -2.55%, -0.49%) (p < 0.01). Concurrently, we did not observe a significant association between ozone exposure, assessed by different metrics, and either FEV1 or FVC.
Conclusions
The study findings suggest that when evaluating ambient ozone exposures, ozone peak intensity during peak-season should be considered, as it may predict greater adverse health effects than averages alone.
期刊介绍：
Air Quality, Atmosphere, and Health is a multidisciplinary journal which, by its very name, illustrates the broad range of work it publishes and which focuses on atmospheric consequences of human activities and their implications for human and ecological health.
It offers research papers, critical literature reviews and commentaries, as well as special issues devoted to topical subjects or themes.
International in scope, the journal presents papers that inform and stimulate a global readership, as the topic addressed are global in their import. Consequently, we do not encourage submission of papers involving local data that relate to local problems. Unless they demonstrate wide applicability, these are better submitted to national or regional journals.
Air Quality, Atmosphere & Health addresses such topics as acid precipitation; airborne particulate matter; air quality monitoring and management; exposure assessment; risk assessment; indoor air quality; atmospheric chemistry; atmospheric modeling and prediction; air pollution climatology; climate change and air quality; air pollution measurement; atmospheric impact assessment; forest-fire emissions; atmospheric science; greenhouse gases; health and ecological effects; clean air technology; regional and global change and satellite measurements.
This journal benefits a diverse audience of researchers, public health officials and policy makers addressing problems that call for solutions based in evidence from atmospheric and exposure assessment scientists, epidemiologists, and risk assessors. Publication in the journal affords the opportunity to reach beyond defined disciplinary niches to this broader readership.
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