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Global chemical composition of ambient fine particulate matter for exposure assessment.

Publication ,  Journal Article
Philip, S; Martin, RV; van Donkelaar, A; Lo, JW-H; Wang, Y; Chen, D; Zhang, L; Kasibhatla, PS; Wang, S; Zhang, Q; Lu, Z; Streets, DG ...
Published in: Environmental science & technology
November 2014

Epidemiologic and health impact studies are inhibited by the paucity of global, long-term measurements of the chemical composition of fine particulate matter. We inferred PM2.5 chemical composition at 0.1° × 0.1° spatial resolution for 2004-2008 by combining aerosol optical depth retrieved from the MODIS and MISR satellite instruments, with coincident profile and composition information from the GEOS-Chem global chemical transport model. Evaluation of the satellite-model PM2.5 composition data set with North American in situ measurements indicated significant spatial agreement for secondary inorganic aerosol, particulate organic mass, black carbon, mineral dust, and sea salt. We found that global population-weighted PM2.5 concentrations were dominated by particulate organic mass (11.9 ± 7.3 μg/m(3)), secondary inorganic aerosol (11.1 ± 5.0 μg/m(3)), and mineral dust (11.1 ± 7.9 μg/m(3)). Secondary inorganic PM2.5 concentrations exceeded 30 μg/m(3) over East China. Sensitivity simulations suggested that population-weighted ambient PM2.5 from biofuel burning (11 μg/m(3)) could be almost as large as from fossil fuel combustion sources (17 μg/m(3)). These estimates offer information about global population exposure to the chemical components and sources of PM2.5.

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Published In

Environmental science & technology

DOI

EISSN

1520-5851

ISSN

0013-936X

Publication Date

November 2014

Volume

48

Issue

22

Start / End Page

13060 / 13068

Related Subject Headings

  • Particulate Matter
  • Particle Size
  • Optical Phenomena
  • North America
  • Models, Theoretical
  • Environmental Sciences
  • Environmental Exposure
  • China
  • Air Pollutants
  • Aerosols
 

Citation

APA
Chicago
ICMJE
MLA
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Philip, S., Martin, R. V., van Donkelaar, A., Lo, J.-H., Wang, Y., Chen, D., … Macdonald, D. J. (2014). Global chemical composition of ambient fine particulate matter for exposure assessment. Environmental Science & Technology, 48(22), 13060–13068. https://doi.org/10.1021/es502965b
Philip, Sajeev, Randall V. Martin, Aaron van Donkelaar, Jason Wai-Ho Lo, Yuxuan Wang, Dan Chen, Lin Zhang, et al. “Global chemical composition of ambient fine particulate matter for exposure assessment.Environmental Science & Technology 48, no. 22 (November 2014): 13060–68. https://doi.org/10.1021/es502965b.
Philip S, Martin RV, van Donkelaar A, Lo JW-H, Wang Y, Chen D, et al. Global chemical composition of ambient fine particulate matter for exposure assessment. Environmental science & technology. 2014 Nov;48(22):13060–8.
Philip, Sajeev, et al. “Global chemical composition of ambient fine particulate matter for exposure assessment.Environmental Science & Technology, vol. 48, no. 22, Nov. 2014, pp. 13060–68. Epmc, doi:10.1021/es502965b.
Philip S, Martin RV, van Donkelaar A, Lo JW-H, Wang Y, Chen D, Zhang L, Kasibhatla PS, Wang S, Zhang Q, Lu Z, Streets DG, Bittman S, Macdonald DJ. Global chemical composition of ambient fine particulate matter for exposure assessment. Environmental science & technology. 2014 Nov;48(22):13060–13068.
Journal cover image

Published In

Environmental science & technology

DOI

EISSN

1520-5851

ISSN

0013-936X

Publication Date

November 2014

Volume

48

Issue

22

Start / End Page

13060 / 13068

Related Subject Headings

  • Particulate Matter
  • Particle Size
  • Optical Phenomena
  • North America
  • Models, Theoretical
  • Environmental Sciences
  • Environmental Exposure
  • China
  • Air Pollutants
  • Aerosols