Articles | Volume 15, issue 20
https://doi.org/10.5194/acp-15-11667-2015
https://doi.org/10.5194/acp-15-11667-2015
Research article
 | 
21 Oct 2015
Research article |  | 21 Oct 2015

PM2.5 water-soluble elements in the southeastern United States: automated analytical method development, spatiotemporal distributions, source apportionment, and implications for heath studies

T. Fang, H. Guo, V. Verma, R. E. Peltier, and R. J. Weber

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Cited articles

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Bates, J. T., Weber, R. J., Abrams, J., Verma, V., Fang, T., Klein, M., Strickland, M. J., Sarnat, S. E., Chang, H. H., Mulholland, J. A., Tolbert, P. E., and Russell, A. G.: Reactive Oxygen Species Generation Linked to Soures of Atmospheric Particulate Matter and Cardiorespiratory Effects, Environ. Sci. Technol., accepted, https://doi.org/10.1021/acs.est.5b02967, 2015.
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Short summary
This work presented a new method of quantifying water-soluble elements in PM2.5 aqueous extracts (N~500) with an X-ray fluorescence analyzer. The results indicate that water-soluble elements had marked spatial and temporal patterns. Four sources were resolved: brake/tire wear, biomass burning, secondary formation, and mineral dust. The findings have informed studies on aerosol oxidative potential and provided insights into the health effects of water-soluble metals, especially Cu, Fe, Mn and Zn.
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