Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.5194/acp-11-6663-2011 |
Transport of desert dust mixed with North African industrial pollutants in the subtropical Saharan Air Layer | |
Rodriguez, S.1; Alastuey, A.2; Alonso-Perez, S.1; Querol, X.2; Cuevas, E.1; Abreu-Afonso, J.1; Viana, M.2; Perez, N.2; Pandolfi, M.2; de la Rosa, J.3 | |
通讯作者 | Rodriguez, S. |
来源期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS
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ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2011 |
卷号 | 11期号:13页码:6663-6685 |
英文摘要 | An analysis of chemical composition data of particulate matter samples (TSP, PM10 and PM2.5) collected from 2002 to 2008 in the North Atlantic free troposphere at the Izana Global Atmospheric Watch (GAW) observatory (Tenerife, Canary Islands) shows that desert dust is very frequently mixed with particulate pollutants in the Saharan Air Layer (SAL). The study of this data set with Median Concentrations At Receptor (MCAR) plots allowed the identification of the potential source regions of the dust and particulate pollutants. Areas located at the south of the southern slope of the Atlas mountains emerge as the most frequent source of the soil desert dust advected to the northern edge of the SAL in summer. Industrial emissions occurring in Northern Algeria, Eastern Algeria, Tunisia and the Atlantic coast of Morocco appear as the most important source of the nitrate, ammonium and a fraction of sulphate (at least 60% of the sulphate <10 mu m transported from some regions) observed in the SAL. These emissions are mostly linked to crude oil refineries, phosphate-based fertilizer industry and power plants. Although desert dust emissions appear as the most frequent source of the phosphorous observed in the SAL, high P concentrations are observed when the SAL is affected by emissions from open mines of phosphate and phosphate based fertilizer industry. The results also show that a significant fraction of the sulphate (up to 90% of sulphate <10 mu m transported from some regions) observed in the SAL may be influenced by soil emissions of evaporite minerals in well defined regions where dry saline lakes (chotts) are present. These interpretations of the MCAR plots are consistent with the results obtained with the Positive Matrix Factorization PMF2) receptor modelling. The results of this study show that North African industrial pollutants may be mixed with desert dust and exported to the North Atlantic in the Saharan Air Layer. |
类型 | Article |
语种 | 英语 |
国家 | Spain |
收录类别 | SCI-E |
WOS记录号 | WOS:000292728400032 |
WOS关键词 | MARINE BOUNDARY-LAYER ; POSITIVE MATRIX FACTORIZATION ; ATMOSPHERIC MINERAL DUST ; FACTOR-ANALYTIC MODELS ; LONG-RANGE TRANSPORT ; SIZE DISTRIBUTION ; FREE TROPOSPHERE ; ATLANTIC-OCEAN ; SAMUM 2006 ; CHEMICAL-COMPOSITION |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/167220 |
作者单位 | 1.AEMET Joint Res Unit CSIC Studies Atmospher Pollu, Izana Atmospher Res Ctr, Santa Cruz De Tenerife 38071, Canary Islands, Spain; 2.CSIC, Inst Environm Assessment & Water Res IDAEA, ES-08034 Barcelona, Spain; 3.Univ Huelva, Joint Res Unit CSIC Air Pollut, Huelva 21071, Spain |
推荐引用方式 GB/T 7714 | Rodriguez, S.,Alastuey, A.,Alonso-Perez, S.,et al. Transport of desert dust mixed with North African industrial pollutants in the subtropical Saharan Air Layer[J],2011,11(13):6663-6685. |
APA | Rodriguez, S..,Alastuey, A..,Alonso-Perez, S..,Querol, X..,Cuevas, E..,...&de la Rosa, J..(2011).Transport of desert dust mixed with North African industrial pollutants in the subtropical Saharan Air Layer.ATMOSPHERIC CHEMISTRY AND PHYSICS,11(13),6663-6685. |
MLA | Rodriguez, S.,et al."Transport of desert dust mixed with North African industrial pollutants in the subtropical Saharan Air Layer".ATMOSPHERIC CHEMISTRY AND PHYSICS 11.13(2011):6663-6685. |
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