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Global chemical composition of ambient fine particulate matter for exposure assessment.
Environ Sci Technol. 2014 Nov 18; 48(22):13060-8.ES

Abstract

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.

Authors+Show Affiliations

Department of Physics and Atmospheric Science, Dalhousie University , Halifax, Nova Scotia B3H 4R2, Canada.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

25343705

Citation

Philip, Sajeev, et al. "Global Chemical Composition of Ambient Fine Particulate Matter for Exposure Assessment." Environmental Science & Technology, vol. 48, no. 22, 2014, pp. 13060-8.
Philip S, Martin RV, van Donkelaar A, et al. Global chemical composition of ambient fine particulate matter for exposure assessment. Environ Sci Technol. 2014;48(22):13060-8.
Philip, S., Martin, R. V., van Donkelaar, A., Lo, J. W., Wang, Y., Chen, D., Zhang, L., Kasibhatla, P. S., Wang, S., Zhang, Q., Lu, Z., Streets, D. G., Bittman, S., & Macdonald, D. J. (2014). Global chemical composition of ambient fine particulate matter for exposure assessment. Environmental Science & Technology, 48(22), 13060-8. https://doi.org/10.1021/es502965b
Philip S, et al. Global Chemical Composition of Ambient Fine Particulate Matter for Exposure Assessment. Environ Sci Technol. 2014 Nov 18;48(22):13060-8. PubMed PMID: 25343705.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Global chemical composition of ambient fine particulate matter for exposure assessment. AU - Philip,Sajeev, AU - Martin,Randall V, AU - van Donkelaar,Aaron, AU - Lo,Jason Wai-Ho, AU - Wang,Yuxuan, AU - Chen,Dan, AU - Zhang,Lin, AU - Kasibhatla,Prasad S, AU - Wang,Siwen, AU - Zhang,Qiang, AU - Lu,Zifeng, AU - Streets,David G, AU - Bittman,Shabtai, AU - Macdonald,Douglas J, Y1 - 2014/11/06/ PY - 2014/10/25/entrez PY - 2014/10/25/pubmed PY - 2015/12/15/medline SP - 13060 EP - 8 JF - Environmental science & technology JO - Environ Sci Technol VL - 48 IS - 22 N2 - 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. SN - 1520-5851 UR - https://www.unboundmedicine.com/medline/citation/25343705/Global_chemical_composition_of_ambient_fine_particulate_matter_for_exposure_assessment_ DB - PRIME DP - Unbound Medicine ER -