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Article
Assessing Public Health Burden Associated with Exposure to Ambient Black Carbon in the United States
Science of The Total Environment
  • Ying Li, East Tennessee State University
  • Daven K. Henze, University of Colorado at Boulder
  • Darby Jack, Columbia University
  • Barron H. Henderson, University of Florida
  • Patrick L. Kinney, Columbia University
Document Type
Article
Publication Date
1-1-2016
Description
Black carbon (BC) is a significant component of fine particulate matter (PM2.5) air pollution, which has been linked to a series of adverse health effects, in particular premature mortality. Recent scientific research indicates that BC also plays an important role in climate change. Therefore, controlling black carbon emissions provides an opportunity for a double dividend. This study quantifies the national burden of mortality and morbidity attributable to exposure to ambient BC in the United States (US). We use GEOS–Chem, a global 3-D model of atmospheric composition to estimate the 2010 annual average BC levels at 0.5 x 0.667° resolution, and then re-grid to 12-km grid resolution across the continental US. Using PM2.5 mortality risk coefficient drawn from the American Cancer Society cohort study, the numbers of deaths due to BC exposure were estimated for each 12-km grid, and then aggregated to the county, state and national level. Given evidence that BC particles may pose a greater risk on human health than other components of PM2.5, we also conducted sensitivity analysis using BC-specific risk coefficients drawn from recent literature. We estimated approximately 14,000 deaths to result from the 2010 BC levels, and hundreds of thousands of illness cases, ranging from hospitalizations and emergency department visits to minor respiratory symptoms. Sensitivity analysis indicates that the total BC-related mortality could be even significantly larger than the above mortality estimate. Our findings indicate that controlling BC emissions would have substantial benefits for public health in the US.
Posted Versions
Post-Print
Copyright Statement

This document is an author manuscript from PMC. The publisher's final edited version of this article is available at Science of the Total Environment.

Citation Information
Ying Li, Daven K. Henze, Darby Jack, Barron H. Henderson, et al.. "Assessing Public Health Burden Associated with Exposure to Ambient Black Carbon in the United States" Science of The Total Environment Vol. 539 (2016) p. 515 - 525 ISSN: 0048-9697
Available at: http://works.bepress.com/ying-li/45/