Heterogeneous chemistry of individual mineral dust particles from different dust source regions: the importance of particle mineralogy
The heterogeneous chemistry of individual dust particles from four different dust source regions is investigated on a particle-by-particle basis using state-of-the-art scanning electron microscopy techniques including computer-controlled Scanning Electron Microscopy/Computer-Controlled energy disper...
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| Veröffentlicht in: | Atmospheric environment (1994) 2004-11, Vol.38 (36), p.6253-6261 |
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| container_end_page | 6261 |
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| container_issue | 36 |
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| container_title | Atmospheric environment (1994) |
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| creator | Krueger, B.J. Grassian, V.H. Cowin, J.P. Laskin, A. |
| description | The heterogeneous chemistry of individual dust particles from four different dust source regions is investigated on a particle-by-particle basis using state-of-the-art scanning electron microscopy techniques including computer-controlled Scanning Electron Microscopy/Computer-Controlled energy dispersive X-ray (CCSEM/EDX) analysis. Morphology and compositional changes of individual particles as they react with nitric acid are observed. Clear differences in the reactivity of mineral dusts from these four different dust regions with nitric acid could be observed. Mineral dust from source regions containing high levels of calcium, such as those found in parts of China and Saudi Arabia, are found to react to the greatest extent. Calcium containing minerals, such as calcite (CaCO
3) and dolomite (CaMg(CO
3)
2), react to form nitrate salts whereas other calcium containing minerals such as gypsum (CaSO
4
2H
2O) do not react. The importance of particle chemical composition and mineralogy in the heterogeneous chemistry of mineral dust aerosol is definitively borne out in this study of individual dust particles. |
| doi_str_mv | 10.1016/j.atmosenv.2004.07.010 |
| format | Article |
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3) and dolomite (CaMg(CO
3)
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4
2H
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3) and dolomite (CaMg(CO
3)
2), react to form nitrate salts whereas other calcium containing minerals such as gypsum (CaSO
4
2H
2O) do not react. The importance of particle chemical composition and mineralogy in the heterogeneous chemistry of mineral dust aerosol is definitively borne out in this study of individual dust particles.</description><subject>Atmospheric processing</subject><subject>Earth, ocean, space</subject><subject>Exact sciences and technology</subject><subject>External geophysics</subject><subject>Heterogeneous chemistry</subject><subject>Meteorology</subject><subject>Mineral aerosol</subject><subject>Particle analysis</subject><subject>Particles and aerosols</subject><issn>1352-2310</issn><issn>1873-2844</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2004</creationdate><recordtype>article</recordtype><recordid>eNqFkcFu1DAQhiNEJUrpKyALCW4JYzuOHU6gClqkSlzas-V1JrteJfFiOyvtC_S5cUhXPfY0lv39M57_L4qPFCoKtPm6r0wafcTpWDGAugJZAYU3xSVVkpdM1fXbfOaClYxTeFe8j3EPAFy28rJ4usOEwW9xQj9HYnc4upjCifieuKlzR9fNZiCjmzDk2s0xkYMJydkBI-mDH0nn-h4DTml9jX4OFknArfNT_EbSDokbDz4kM-X73PesP3f129OH4qI3Q8Tr53pVPP76-XBzV97_uf198-O-tHUrUslpvwEjDABtVYOqbjpBN60Vbc2shI3ZGMt5Y4QyTU9rgVRCi4pLKyyiVfyq-LT29TE5Ha1LaHfWTxPapCkVjLUsQ19W6BD83xlj0tkTi8Ng_pukaUOlUlS9DtYy_1MsYLOCNvgYA_b6ENxowklT0EuIeq_PIeolRA1S5xCz8PPzBBOtGfqQPXTxRd0wKhtYuO8rh9m8o8Ow7IbZ786FZbXOu9dG_QOZ0rlU</recordid><startdate>20041101</startdate><enddate>20041101</enddate><creator>Krueger, B.J.</creator><creator>Grassian, V.H.</creator><creator>Cowin, J.P.</creator><creator>Laskin, A.</creator><general>Elsevier Ltd</general><general>Elsevier Science</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7ST</scope><scope>C1K</scope><scope>SOI</scope><scope>7TG</scope><scope>7TV</scope><scope>KL.</scope><scope>OTOTI</scope></search><sort><creationdate>20041101</creationdate><title>Heterogeneous chemistry of individual mineral dust particles from different dust source regions: the importance of particle mineralogy</title><author>Krueger, B.J. ; Grassian, V.H. ; Cowin, J.P. ; Laskin, A.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c495t-31fb0a5a001986e846d51b9c5942c70babac336a58a6f145e1709e837c5ceec83</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2004</creationdate><topic>Atmospheric processing</topic><topic>Earth, ocean, space</topic><topic>Exact sciences and technology</topic><topic>External geophysics</topic><topic>Heterogeneous chemistry</topic><topic>Meteorology</topic><topic>Mineral aerosol</topic><topic>Particle analysis</topic><topic>Particles and aerosols</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Krueger, B.J.</creatorcontrib><creatorcontrib>Grassian, V.H.</creatorcontrib><creatorcontrib>Cowin, J.P.</creatorcontrib><creatorcontrib>Laskin, A.</creatorcontrib><creatorcontrib>Environmental Molecular Sciences Laboratory (EMSL)</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Environment Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Environment Abstracts</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Pollution Abstracts</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>OSTI.GOV</collection><jtitle>Atmospheric environment (1994)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Krueger, B.J.</au><au>Grassian, V.H.</au><au>Cowin, J.P.</au><au>Laskin, A.</au><aucorp>Environmental Molecular Sciences Laboratory (EMSL)</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Heterogeneous chemistry of individual mineral dust particles from different dust source regions: the importance of particle mineralogy</atitle><jtitle>Atmospheric environment (1994)</jtitle><date>2004-11-01</date><risdate>2004</risdate><volume>38</volume><issue>36</issue><spage>6253</spage><epage>6261</epage><pages>6253-6261</pages><issn>1352-2310</issn><eissn>1873-2844</eissn><abstract>The heterogeneous chemistry of individual dust particles from four different dust source regions is investigated on a particle-by-particle basis using state-of-the-art scanning electron microscopy techniques including computer-controlled Scanning Electron Microscopy/Computer-Controlled energy dispersive X-ray (CCSEM/EDX) analysis. Morphology and compositional changes of individual particles as they react with nitric acid are observed. Clear differences in the reactivity of mineral dusts from these four different dust regions with nitric acid could be observed. Mineral dust from source regions containing high levels of calcium, such as those found in parts of China and Saudi Arabia, are found to react to the greatest extent. Calcium containing minerals, such as calcite (CaCO
3) and dolomite (CaMg(CO
3)
2), react to form nitrate salts whereas other calcium containing minerals such as gypsum (CaSO
4
2H
2O) do not react. The importance of particle chemical composition and mineralogy in the heterogeneous chemistry of mineral dust aerosol is definitively borne out in this study of individual dust particles.</abstract><cop>Oxford</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.atmosenv.2004.07.010</doi><tpages>9</tpages></addata></record> |
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| ispartof | Atmospheric environment (1994), 2004-11, Vol.38 (36), p.6253-6261 |
| issn | 1352-2310 1873-2844 |
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| source | Elsevier ScienceDirect Journals |
| subjects | Atmospheric processing Earth, ocean, space Exact sciences and technology External geophysics Heterogeneous chemistry Meteorology Mineral aerosol Particle analysis Particles and aerosols |
| title | Heterogeneous chemistry of individual mineral dust particles from different dust source regions: the importance of particle mineralogy |
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