Sources of heavy dust fall in Beijing, China on April 16, 1998

Sun, Jimin; Liu, Tungsheng; Lei, Zhenfa

doi:10.1029/1999gl010814

Cited by 66 publications

(44 citation statements)

References 11 publications

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“…The 2006 dust fall samples from Beijing, however, show no gypsum or dolomite. Sun, J. M. et al (2000) found kaolinite in a 1998 dust fall at Beijing, but kaolinite was not found in our 2006 Beijing dust samples. Miyake et al (1956) found considerable albite in 1955 dust samples from Asahikawa, Japan (accounting for 17.8%), similar to our findings in the 2006 Beijing dust fall.…”

Section: Mineral Compositionmentioning

confidence: 93%

“…The dust was transported solely by upper northwestern winds, which means that the dust fall in Beijing was not supplemented by local surface dust of Beijing. The lack of a local surface dust contribution of Beijing differs from previous dust fall events in Beijing (Liu et al, 1981;Sun, J. M. et al, 2000). Therefore, the dust fall in 2006 provides an opportunity to obtain more accurate information on the dust source.…”

Section: Introductionmentioning

confidence: 91%

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Heavy dust fall in Beijing, on April 16-17, 2006: Geochemical properties and indications of the dust provenance

Feng

Zhu

et al. 2008

Geochem. J.

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A heavy dust fell in Beijing on April [16][17] 2006. The dust storm formed in middle and western Inner Mongolia, China, under a strong Mongolian Cyclone. During the dust fall, the near-surface wind speed was insignificant in Beijing. The minimal wind speed at ground level indicates that the dust must have been transported by upper northwestern winds, and the local dust of Beijing contributed little to dust fall. The lack of a contribution from local dust differed from previous dust fall events in Beijing. Therefore, this dust fall provides good information on the dust source. Dust samples colleted during this event and Pleistocene loess samples from the Beijing area were analyzed for magnetic susceptibility, bulk particle and quartz grain size distributions, bulk particle and quartz micro-textures, mineralogy, carbonate content, major element concentrations, trace element and rare earth element (REE) concentrations, and the oxygen isotope composition of quartz. The results indicate the following. (1)

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Section: Mineral Compositionmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 91%

Heavy dust fall in Beijing, on April 16-17, 2006: Geochemical properties and indications of the dust provenance

Feng

Zhu

et al. 2008

Geochem. J.

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“…The wind-blown dust from Gobi desert and loess plateau in northwestern China contribute significantly to the global aerosol loadings during Asian dust storms (ADS) ( Sun et al, 2000;Zhang et al, 2003b;Zhang et al, 2005;Shen et al, 2007;Cao et al, 2008). The dust particles crossed continental China (Husar et al, 2001;Arimoto et al, 2004;Shi et al, 2005;Zhang et al, 2005;Shao et al, 2008;Zhao et al, 2010), passed over Korea and Japan (Ma et al, 2001) and traveled to North Pacific in spring time (Prospero et al, 2003;Arimoto et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

Chemical Modification of Dust Particles during Different Dust Storm Episodes

Shao

2012

Aerosol Air Qual. Res.

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Two dust episodes (D1: February 13 and D2: March 28-29, 2004) of long-range transport from desert and loess sources, and one dust episode (D3: March 30) mainly from local area, were investigated in spring 2004 in Beijing, China. Dust samples were collected in different dust episodes and scanning electron microscopy with X-ray energy dispersive detector (SEM/EDS) was applied to study the morphology, elemental composition, and chemical modification on the surfaces of dust particles with radius from 0.1 to 6.4 μm. The morphological features of the particles reveal that the three dust plumes carried both dust particles (90-98% by number) and anthropogenic pollutants (e.g., fly ash and soot, 2-10%). Particle compositions show that the amount of S-containing dust particles was higher in D1 and D2 than in D3. Sulfates were introduced into the dust particles through heterogeneous uptake of SO 2 during their transport. In all three dust episodes, fine dust particles (radius < 1 μm) showed a higher degree of chemical modification by SO 2 compared to the coarse particles (radius ≥ 1 μm). Furthermore, long-range transport dust particles were more deeply modified by SO 2 than particles from local areas. The composition of the dust particles indicates that alkaline mineral components determined the level of chemical modification of individual particles. Heterogeneous uptake of SO 2 on a large number of dust particles would increase mass of the internally mixed sulfates on their surfaces. The results suggest that the optical properties of dust particles during dust storm episodes are gradually altered based on how far they are transported.

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“…An international convention states that a dust event is defined by visibility of <10 km (CCMB, 1979), and the frequency of dust events is typically used as an index of the intensity of emissions from dust source areas (e.g., Sun et al, 2000Sun et al, , 2001Qian et al, 2002;Zhou and Zhang, 2003;Wang et al, 2004Wang et al, , 2005Wang et al, , 2006Wang et al, , 2008. However, in the areas where the dust is deposited, such as the western CLP, the dust emitted from the source areas settles by both dry and wet deposition, and the present results show that the frequency of dust occurrence may not be an effective indicator of the intensity of fallout in the region.…”

Section: Significances Of Variations In Amount and Geochemical Characmentioning

confidence: 99%

Geochemical evidence for seasonal variations in potential loess sources of the western Chinese Loess Plateau

Wang

Lang

et al. 2015

Atmospheric Environment

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Sources of heavy dust fall in Beijing, China on April 16, 1998

Cited by 66 publications

References 11 publications

Heavy dust fall in Beijing, on April 16-17, 2006: Geochemical properties and indications of the dust provenance

Heavy dust fall in Beijing, on April 16-17, 2006: Geochemical properties and indications of the dust provenance

Chemical Modification of Dust Particles during Different Dust Storm Episodes

Geochemical evidence for seasonal variations in potential loess sources of the western Chinese Loess Plateau

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