The transport pathways and sources of PM10 pollution in Beijing during spring 2001, 2002 and 2003

Details The transport pathways and sources of PM10 pollution in Beijing during spring 2001, 2002 and 2003 The transport pathways and sources of PM10 pollution in Beijing during spring 2001, 2002 and 2003

Jul 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004georl..3114110w&link_type=abstract

Geophysical Research Letters, Volume 31, Issue 14, CiteID L14110

Physics

10

Atmospheric Composition And Structure: Aerosols And Particles (0345, 4801), Atmospheric Composition And Structure: Pollution-Urban And Regional (0305), Meteorology And Atmospheric Dynamics: Boundary Layer Processes, Meteorology And Atmospheric Dynamics: Land/Atmosphere Interactions, Information Related To Geographic Region: Asia

Scientific paper

PM10 concentration data for Beijing were combined with trajectory clustering and potential source contribution function (PSCF) methods to identify the principal transport pathways and sources for high-concentration aerosol events in the spring. Three major pathways exist: the main one passes over Kazakhstan, through desert and semi-arid regions in southwestern Mongolia, and then through Inner Mongolia and onwards to Beijing. Four major potential sources were identified, these are: (1) border areas between Kazakhstan and China, (2) desert and semi-desert regions in western Mongolia, (3) the Northern High Dust Desert and (4) the Loess Plateau of China. The pathways and sources for pollution aerosol also are associated with Asian dust emissions; this suggests a significant contribution of Asian dust to PM10 pollution at Beijing.

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