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| Titel |
Quantification of Global Primary Emissions of PM2.5, PM10, and TSP from Combustion and Industrial Process Sources |
| VerfasserIn |
Ye Huang, Shu Tao |
| Konferenz |
EGU General Assembly 2015
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 17 (2015) |
| Datensatznummer |
250105748
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| Publikation (Nr.) |
 EGU/EGU2015-5302.pdf |
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| Zusammenfassung |
| Emission quantification of primary particulate matter (PM) is essential for assessment
of its related climate and health impacts. To reduce uncertainty associated with
global emissions of TSP, PM10 and PM2.5, we compiled data with high spatial
(0.1Ë x0.1Ë ) and sectorial (77 primary sources) resolutions for 2007 based on a
newly released global fuel data product (PKU-FUEL-2007), and an emission factor
database including emission factors measured recently in developing countries.
Total emissions for TSP, PM10 and PM2.5 were estimated to be 162 (123–224), 99
(80–130), and 78 (64–101) Tg, respectively. Our estimates for developing countries are
higher than those previously reported. Spatial bias associated with large countries
could be reduced by using sub-national fuel consumption data. Despite the fact
that most industrial and transport sources locate in urban areas, residential fuel
consumptions are quite different between rural and urban areas, especially in developing
countries. As a result, per person annual primary PM emission in rural areas are much
higher than those in urban areas. Further, this difference in developed countries
(12 and 2.8 kg PM2.5 for rural and urban areas) is larger than that in developing
countries (8.4 and 4.6 kg PM2.5 for rural and urban areas). Additionally, we looked
at temporal trends from 1960 to 2009 at country-scale resolution. Although total
emissions are still increasing in developing countries, their intensities in terms of gross
domestic production or energy consumption have decreased. PM emitted in developed
countries is finer owing to a larger contribution from non-industrial sources, and use
of abatement technologies. In contrast, countries like China, with strong industry
emissions and limited abatement facilities, emit coarser PM. The health impacts
of PM are intensified in hotspots and cities owing to covariance of sources and
receptors. Although urbanization reduces the per person emission, overall health
impacts related to these emissions are heightened because of aggregation effects. |
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