Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.atmosenv.2009.03.057 |
Mineralogical and chemical characterization of suspended atmospheric particles over the east Mediterranean based on synoptic-scale circulation patterns | |
Kalderon-Asael, Boriana1,2; Erel, Yigal1; Sandler, Amir2; Dayan, Uri3 | |
通讯作者 | Erel, Yigal |
来源期刊 | ATMOSPHERIC ENVIRONMENT |
ISSN | 1352-2310 |
EISSN | 1873-2844 |
出版年 | 2009 |
卷号 | 43期号:25页码:3963-3970 |
英文摘要 | Suspended atmospheric particles were collected in Israel in order to identify their nature and relationships with the major synoptic-scale circulation patterns. The particles were analyzed for their major and trace element concentrations and mineralogical composition. Samples were collected during three synoptic systems associated with desert dust storms: Red Sea trough, Sharav cyclone and cold depression, and during deep and shallow modes of Persian Gulf trough, which prevails in the summer months and is not associated with dust storms. All samples mostly contain particles smaller than 2 mu m. The suspended desert dust is composed primarily of illite-smectite and calcite. Some indicative secondary minerals were found for each of the dust transporting synoptic systems (e.g., palygorskite for Red Sea trough). The bulk chemistry data support the mineralogical observations and reveal additional chemical signatures of each dust transporting system. For instance, Red Sea trough samples have significantly higher Ca/Al and Ca/Mg in the carbonate and Mg/Al in Al-silicate fraction than cold depression samples. Nevertheless, Sharav cyclone samples have intermediate values in spite of the fact that the source of the dust during these conditions is similar to cold depression (i.e., North Africa). Even though differences in the chemical and the mineralogical composition of desert dust do exist, this study reveals their overall chemical and mineralogical similarities. In contrast to the synoptic systems that carry desert dust, the inorganic fraction of the Persian Gulf trough samples contains significant amount (up to 50%) of non-mineral material that has a pronounced chemical signature in terms of major element concentrations (e.g., Al, Ca. Mg, Na, S) implying their anthropogenic nature, probably from countries around the Black Sea. This striking finding is indicative for atmospheric pollution in the Eastern Mediterranean region during the summer. (C) 2009 Elsevier Ltd. All rights reserved. |
英文关键词 | Suspended desert dust Pollution Mineralogy |
类型 | Article |
语种 | 英语 |
国家 | Israel |
收录类别 | SCI-E |
WOS记录号 | WOS:000268851600019 |
WOS关键词 | LONG-RANGE TRANSPORT ; SAHARAN DUST ; METEOROLOGICAL CONDITIONS ; NEGEV DESERT ; ISRAEL ; POLLUTANTS ; AEROSOLS ; SUMMER ; CLIMATOLOGY ; DEPOSITION |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
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/2XILL650/159890 |
作者单位 | 1.Hebrew Univ Jerusalem, Inst Earth Sci, IL-91904 Jerusalem, Israel; 2.Geol Survey Israel, IL-95501 Jerusalem, Israel; 3.Hebrew Univ Jerusalem, Dept Geog, IL-91904 Jerusalem, Israel |
推荐引用方式 GB/T 7714 | Kalderon-Asael, Boriana,Erel, Yigal,Sandler, Amir,et al. Mineralogical and chemical characterization of suspended atmospheric particles over the east Mediterranean based on synoptic-scale circulation patterns[J]. Hebrew University of Jerusalem,2009,43(25):3963-3970. |
APA | Kalderon-Asael, Boriana,Erel, Yigal,Sandler, Amir,&Dayan, Uri.(2009).Mineralogical and chemical characterization of suspended atmospheric particles over the east Mediterranean based on synoptic-scale circulation patterns.ATMOSPHERIC ENVIRONMENT,43(25),3963-3970. |
MLA | Kalderon-Asael, Boriana,et al."Mineralogical and chemical characterization of suspended atmospheric particles over the east Mediterranean based on synoptic-scale circulation patterns".ATMOSPHERIC ENVIRONMENT 43.25(2009):3963-3970. |
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