Fifteen-Year Global Time Series of Satellite-Derived Fine Particulate Matter

doi:https://doi.org/10.1021/es502113p

Title: Fifteen-Year Global Time Series of Satellite-Derived Fine Particulate Matter

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Abstract

Ambient fine particulate matter (PM2.5) is a leading environmental risk factor for premature mortality. We use aerosol optical depth (AOD) retrieved from two satellite instruments, MISR and SeaWiFS, to produce a unified 15-year global time series (1998-2012) of ground-level PM2.5 concentration at a resolution of 1 degrees x 1 degrees. The GEOS-Chem chemical transport model (CTM) is used to relate each individual AOD retrieval to ground-level PM2.5. Four broad areas showing significant, spatially coherent, annual trends are examined in detail: the Eastern U.S. (-0.39 +/- 0.10 mu g m(-3) yr(-1)), the Arabian Peninsula (0.81 +/- 0.21 mu g m(-3) yr(-1)), South Asia (0.93 +/- 0.22 mu g m(-3) yr(-1)) and East Asia (0.79 +/- 0.27 mu g m(-3) yr(-1)). Over the period of dense in situ observation (1999-2012), the linear tendency for the Eastern U.S. (-0.37 +/- 0.13 mu g m(-3) yr(-1)) agrees well with that from in situ measurements (-0.38 +/- 0.06 mu g m(-3) yr(-1)). A GEOS-Chem simulation reveals that secondary inorganic aerosols largely explain the observed PM2.5 trend over the Eastern U.S., South Asia, and East Asia, while mineral dust largely explains the observed trend over the Arabian Peninsula.

Authors:: Boys, B. L.; Martin, R. V.; van Donkelaar, A.; MacDonell, R. J.; Hsu, N. C.; Cooper, M. J.; Yantosca, R. M.; Lu, Z.; Streets, D. G.; Zhang, Q.; Wang, S. W.

Publication Date:: 2014-10-07

Research Org.:: Argonne National Lab. (ANL), Argonne, IL (United States)

Sponsoring Org.:: National Aeronautic and Space Administration (NASA)

OSTI Identifier:: 1239604

DOE Contract Number:: AC02-06CH11357

Resource Type:: Journal Article

Journal Name:: Environmental Science and Technology

Additional Journal Information:: Journal Volume: 48; Journal Issue: 19; Journal ID: ISSN 0013-936X

Publisher:: American Chemical Society (ACS)

Country of Publication:: United States

Language:: English

Citation Formats


                    Boys, B. L., Martin, R. V., van Donkelaar, A., MacDonell, R. J., Hsu, N. C., Cooper, M. J., Yantosca, R. M., Lu, Z., Streets, D. G., Zhang, Q., and Wang, S. W. Fifteen-Year Global Time Series of Satellite-Derived Fine Particulate Matter.  United States: N. p., 2014. 
        Web.  doi:10.1021/es502113p.

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                    Boys, B. L., Martin, R. V., van Donkelaar, A., MacDonell, R. J., Hsu, N. C., Cooper, M. J., Yantosca, R. M., Lu, Z., Streets, D. G., Zhang, Q., & Wang, S. W. Fifteen-Year Global Time Series of Satellite-Derived Fine Particulate Matter.  United States.  https://doi.org/10.1021/es502113p

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                    Boys, B. L., Martin, R. V., van Donkelaar, A., MacDonell, R. J., Hsu, N. C., Cooper, M. J., Yantosca, R. M., Lu, Z., Streets, D. G., Zhang, Q., and Wang, S. W. Tue .  
        "Fifteen-Year Global Time Series of Satellite-Derived Fine Particulate Matter".  United States.  https://doi.org/10.1021/es502113p.

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@article{osti_1239604,

  title        = {Fifteen-Year Global Time Series of Satellite-Derived Fine Particulate Matter},

  author       = {Boys, B. L. and Martin, R. V. and van Donkelaar, A. and MacDonell, R. J. and Hsu, N. C. and Cooper, M. J. and Yantosca, R. M. and Lu, Z. and Streets, D. G. and Zhang, Q. and Wang, S. W.},

  abstractNote = {Ambient fine particulate matter (PM2.5) is a leading environmental risk factor for premature mortality. We use aerosol optical depth (AOD) retrieved from two satellite instruments, MISR and SeaWiFS, to produce a unified 15-year global time series (1998-2012) of ground-level PM2.5 concentration at a resolution of 1 degrees x 1 degrees. The GEOS-Chem chemical transport model (CTM) is used to relate each individual AOD retrieval to ground-level PM2.5. Four broad areas showing significant, spatially coherent, annual trends are examined in detail: the Eastern U.S. (-0.39 +/- 0.10 mu g m(-3) yr(-1)), the Arabian Peninsula (0.81 +/- 0.21 mu g m(-3) yr(-1)), South Asia (0.93 +/- 0.22 mu g m(-3) yr(-1)) and East Asia (0.79 +/- 0.27 mu g m(-3) yr(-1)). Over the period of dense in situ observation (1999-2012), the linear tendency for the Eastern U.S. (-0.37 +/- 0.13 mu g m(-3) yr(-1)) agrees well with that from in situ measurements (-0.38 +/- 0.06 mu g m(-3) yr(-1)). A GEOS-Chem simulation reveals that secondary inorganic aerosols largely explain the observed PM2.5 trend over the Eastern U.S., South Asia, and East Asia, while mineral dust largely explains the observed trend over the Arabian Peninsula.},

  doi          = {10.1021/es502113p},

  url          = {https://www.osti.gov/biblio/1239604},
  journal      = {Environmental Science and Technology},

  issn         = {0013-936X},

  number       = 19,

  volume       = 48,

  place        = {United States},

  year         = {2014},

  month        = {10}

}

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