Sensitivity of estimated NO2-attributable pediatric asthma incidence to grid resolution and urbanicity

Nitrogen dioxide (NO2) is a major urban air pollutant and is associated with new onset asthma among children worldwide. Since NO2 concentrations are spatially heterogeneous and correlated with population, the spatial resolution of concentration estimates and disease burden calculations could strongl...

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Bibliographic Details
Published in:Environmental research letters 2021-01, Vol.16 (1), p.014019
Main Authors: Mohegh, Arash, Goldberg, Daniel, Achakulwisut, Pattanun, Anenberg, Susan C
Format: Article
Language:English
Subjects:
asthma
NO2
spatial resolution
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Summary:Nitrogen dioxide (NO2) is a major urban air pollutant and is associated with new onset asthma among children worldwide. Since NO2 concentrations are spatially heterogeneous and correlated with population, the spatial resolution of concentration estimates and disease burden calculations could strongly influence the magnitude and spatial distribution of estimated NO2-attributable pediatric asthma (PA) cases. Here, we investigate the effect of spatial resolution of exposure and population data on estimated NO2 attributable PA incidence. We use epidemiologically derived health impact functions to estimate NO2-attributable asthma incidence for the U.S. and India, two countries with different degrees of urbanicity, using population and NO2 concentration estimates at 100 m resolution and aggregated to coarser spatial resolutions: 500 m, 1 km, 10 km, and 100 km. Estimated NO2-attributable PA burdens differ by
ISSN:1748-9326
DOI:10.1088/1748-9326/abce25