edu.ucar.opensky::articles:24598 UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact 2025-12-24T23:08:18.659399 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) https://n2t.org/ark:/85065/d7hd8039 https://doi.org/10.5067/Aircraft/INTEXB/Aerosol-TraceGas https Related Dataset #1 INTEX-B Satellite data - ICARTT File Secondary organic aerosols from anthropogenic volatile organic compounds contribute substantially to air pollution mortality 2021-07-27T00:00:00Z publication https://n2t.org/ark:/85065/d7hd8039 https://doi.org/10.5194/acp-21-11201-2021 Nault, B. A. author Jo, D. S. author McDonald, B. C. author Campuzano-Jost, P. author Day, D. A. author Hu, W. author Schroder, J. C. author Allan, J. author Blake, D. R. author Canagaratna, M. R. author Coe, H. author Coggon, M. M. author DeCarlo, P. F. author Diskin, G. S. author Dunmore, R. author Flocke, Frank M. author Fried, A. author Gilman, J. B. author Gkatzelis, G. author Hamilton, J. F. author Hanisco, T. F. author Hayes, P. L. author Henze, D. K. author Hodzic, Alma author Hopkins, J. author Hu, M. author Huey, L. G. author Jobson, B. T. author Kuster, W. C. author Lewis, A. author Li, M. author Liao, J. author Nawaz, M. O. author Pollack, I. B. author Peischl, J. author Rappenglück, B. author Reeves, C. E. author Richter, D. author Roberts, J. M. author Ryerson, T. B. author Shao, M. author Sommers, J. M. author Walega, J. author Warneke, C. author Weibring, P. author Wolfe, G. M. author Young, D. E. author Yuan, B. author Zhang, Q. author de Gouw, J. A. author Jimenez, J. L. author UCAR/NCAR - Library publisher Anthropogenic secondary organic aerosol (ASOA), formed from anthropogenic emissions of organic compounds, constitutes a substantial fraction of the mass of submicron aerosol in populated areas around the world and contributes to poor air quality and premature mortality. However, the precursor sources of ASOA are poorly understood, and there are large uncertainties in the health benefits that might accrue from reducing anthropogenic organic emissions. We show that the production of ASOA in 11 urban areas on three continents is strongly correlated with the reactivity of specific anthropogenic volatile organic compounds. The differences in ASOA production across different cities can be explained by differences in the emissions of aromatics and intermediate- and semi-volatile organic compounds, indicating the importance of controlling these ASOA precursors. With an improved model representation of ASOA driven by the observations, we attribute 340 000 PM2.5-related premature deaths per year to ASOA, which is over an order of magnitude higher than prior studies. A sensitivity case with a more recently proposed model for attributing mortality to PM2.5 (the Global Exposure Mortality Model) results in up to 900 000 deaths. A limitation of this study is the extrapolation from cities with detailed studies and regions where detailed emission inventories are available to other regions where uncertainties in emissions are larger. In addition to further development of institutional air quality management infrastructure, comprehensive air quality campaigns in the countries in South and Central America, Africa, South Asia, and the Middle East are needed for further progress in this area. UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact PDF Text theme Resource Type 2016-01-01T00:00:00Z publication Copyright author(s). This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. None eng geoscientificInformation