NDLI: Local and non-local sources of airborne particulate pollution at Beijing : —The ratio of Mg/Al as an element tracer for estimating the contributions of mineral aerosols from outside Beijing

Content Provider	Springer Nature Link
Author	Han, Lihui Zhuang, Guoshun Sun, Yele Wang, Zifa
Copyright Year	2005
Abstract	A new element tracer technique has firstly been established to estimate the contributions of mineral aerosols from both inside and outside Beijing. The ratio of Mg/Al in aerosol is a feasible element tracer to distinguish between the sources of inside and outside Beijing. Mineral aerosol, inorganic pollution aerosol mainly as sulfate and nitrate, and organic aerosol are the major components of airborne particulates in Beijing, of which mineral aerosol accounted for 32%–-67% of total suspended particles (TSP), 10% –70% of fine particles (PM2.5), and as high as 74% and 90% of TSP and PM$_{2.5}$, respectively, in dust storm. The sources from outside Beijing contributed 62% (38%–-86%) of the total mineral aerosols in TSP, 69% (52%–-90%) in PM$_{10}$, and 76% (59%–-93%) in PM$_{2.5}$ in spring, and 69% (52%–-83%), 79% (52%–-93%), and 45% (7% – 79%) in TSP, PM$_{10}$, and PM$_{2.5}$, respectively, in winter, while only ≈20% in summer and autumn. The sources from outside Beijing contributed as high as 97% during dust storm and were the dominant source of airborne particulates in Beijing. The contributions from outside Beijing in spring and winter are higher than those in summer, indicating clearly that it was related to the various meteorological factors.
Starting Page	253
Ending Page	264
Page Count	12
File Format	PDF
ISSN	10069291
Journal	Science in China Series B: Chemistry
Volume Number	48
Issue Number	3
e-ISSN	18622771
Language	English
Publisher	Science in China Press
Publisher Date	2005-01-01
Publisher Place	Beijing
Access Restriction	Subscribed
Subject Keyword	mineral aerosol local sources non-local sources dust storm re-suspended dust element tracer technique Chemistry/Food Science
Content Type	Text
Resource Type	Article
Subject	Chemistry

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