Arid
DOI10.1021/es051502l
Trans boundary transport of pollutants by atmospheric mineral dust
Erel, Y; Dayan, U; Rabi, R; Rudich, Y; Stein, M
通讯作者Erel, Y
来源期刊ENVIRONMENTAL SCIENCE & TECHNOLOGY
ISSN0013-936X
EISSN1520-5851
出版年2006
卷号40期号:9页码:2996-3005
英文摘要

The transport of anthropogenic pollution by desert dust in the Eastern Mediterranean region was studied by analyzing major and trace element composition, organic species, and Pb isotope ratios in suspended dust samples collected in Jerusalem, Israel. Dust storms in this region are associated with four distinct synoptic conditions (Red Sea Trough (RS), Eastern High (EH), Sharav Cyclone (SC), and Cold Depression (Cyprus low, CD)) that carry dust mostly from North African (SC, CD, EH) and Arabian and Syrian (RS, EH) deserts. Substantial contamination of dust particles by Pb, Cu, Zn, and Ni is observed, while other elements (Na, Ca, Mg, Mn, Sr, Rb, REE, U, and Th) display natural concentrations. Sequential extraction of the abovementioned elements from the dust samples shows that the carbonate and sorbed fractions contain most of the pollution, yet the Al-silicate fraction is also contaminated, implying that soils and sediments in the source terrains of the dust are already polluted. We identified the pollutant sources by using Pb isotopes. It appears that before the beginning of the dust storm, the pollutants in the collected samples are dominated by local sources but with the arrival of dust from North Africa, the proportion of foreign pollutants increases. Organic pollutants exhibit behavior similar and complementary to that of the inorganic tracers, attesting to the importance of anthropogenic-pollutant addition en route of the dust from its remote sources. Pollution of suspended dust is observed under all synoptic conditions, yet it appears that easterly winds carry higher proportions of local pollution and westerly winds carry pollution emitted in the Cairo basin. Therefore, pollution transport by mineral dust should be accounted for in environmental models and in assessing the health-related effects of mineral dust.


类型Article
语种英语
国家Israel
收录类别SCI-E
WOS记录号WOS:000237251400029
WOS关键词ISOTOPIC SOURCE SIGNATURES ; ANTHROPOGENIC LEAD ; AIR-POLLUTANTS ; AEROSOLS ; ISRAEL ; SOUTHERN ; TRACERS ; RATIOS ; TRAJECTORIES ; REANALYSIS
WOS类目Engineering, Environmental ; Environmental Sciences
WOS研究方向Engineering ; Environmental Sciences & Ecology
来源机构Hebrew University of Jerusalem
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/151337
作者单位(1)Hebrew Univ Jerusalem, Inst Earth Sci, IL-91904 Jerusalem, Israel;(2)Hebrew Univ Jerusalem, Dept Geog, IL-91905 Jerusalem, Israel;(3)Weizmann Inst Sci, Dept Environm Sci, IL-76100 Rehovot, Israel;(4)Geol Survey Israel, IL-95501 Jerusalem, Israel
推荐引用方式
GB/T 7714
Erel, Y,Dayan, U,Rabi, R,et al. Trans boundary transport of pollutants by atmospheric mineral dust[J]. Hebrew University of Jerusalem,2006,40(9):2996-3005.
APA Erel, Y,Dayan, U,Rabi, R,Rudich, Y,&Stein, M.(2006).Trans boundary transport of pollutants by atmospheric mineral dust.ENVIRONMENTAL SCIENCE & TECHNOLOGY,40(9),2996-3005.
MLA Erel, Y,et al."Trans boundary transport of pollutants by atmospheric mineral dust".ENVIRONMENTAL SCIENCE & TECHNOLOGY 40.9(2006):2996-3005.
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