Partitioning of the water soluble versus insoluble fraction of trace elements in the city of Santiago, Chile
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| Format: | Artículo científico |
| Sprache: | en |
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Universidad Nacional Autónoma de México
2018
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| _version_ | 1876475826714705920 |
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| author | María A. Rubio |
| author_facet | María A. Rubio |
| contents | Partitioning of the water soluble versus insoluble fraction of trace elements in the city of Santiago, Chile María A. Rubio Karen Sánchez Pablo Richter Jorge Pey Ernesto Gramsch Biología PM10 Megacity trace metals road traffic atmospheric pollution The total elemental composition and the water-soluble fraction of PM10 from three different urban areas in Santiago, Chile, from downtown to the suburbs, were investigated. PM10 samples collected during the month of May (mid-autumn in the Southern Hemisphere) in 2006, 2008, 2009, and 2010 were analyzed for major and trace metals, and the partitioning between the insoluble and soluble fractions was determined for most of them. PM10 average concentrations ranged from 71 µg m–3 (Cerrillos) to 128 µg m–3 (La Pintana), which are within the seasonal ranges observed in Santiago. Twenty five major and trace elements (Fe, Al, Ca, K, Mg, P, Pb, S, Ti, Mn, Cu, Zn, Ba, Zr, Cr, As, Sn, Sb, Ni, V, Li, Co, Cd, La, and Rb) were determined in the present study. Ba, Sb, Cd, As, and Zn, with proportions in the soluble fraction varying from 50% to 98%, were the most soluble elements. On the contrary, the less soluble trace elements were Ti, Sn, Pb, and Cr. Most of the high-solubility trace metals are strongly linked to non-exhaust traffic emissions, as well as to certain industrial sources. Our results evidence the significant amount of soluble trace elements in Santiago’s urban atmosphere classified as toxic and/or carcinogenic, thus suggesting a non-negligible health impact. 2018 artículo científico 0187-6236 https://www.redalyc.org/articulo.oa?id=56557569006 https://www.redalyc.org/journal/565/56557569006/ https://www.redalyc.org/journal/565/56557569006/html/ https://www.redalyc.org/journal/565/56557569006/56557569006.epub https://www.redalyc.org/journal/565/56557569006/movil https://doi.org/10.20937/ATM.2018.31.04.05 en http://www.redalyc.org/revista.oa?id=565 Atmósfera application/pdf Universidad Nacional Autónoma de México Atmósfera (México) Num.4 Vol.31 |
| format | Artículo científico |
| id | redalyc_56557569006 |
| institution | Redalyc |
| language | en |
| publishDate | 2018 |
| publisher | Universidad Nacional Autónoma de México |
| spellingShingle | Partitioning of the water soluble versus insoluble fraction of trace elements in the city of Santiago, Chile María A. Rubio Biología PM10 Megacity trace metals road traffic atmospheric pollution Partitioning of the water soluble versus insoluble fraction of trace elements in the city of Santiago, Chile María A. Rubio Karen Sánchez Pablo Richter Jorge Pey Ernesto Gramsch Biología PM10 Megacity trace metals road traffic atmospheric pollution The total elemental composition and the water-soluble fraction of PM10 from three different urban areas in Santiago, Chile, from downtown to the suburbs, were investigated. PM10 samples collected during the month of May (mid-autumn in the Southern Hemisphere) in 2006, 2008, 2009, and 2010 were analyzed for major and trace metals, and the partitioning between the insoluble and soluble fractions was determined for most of them. PM10 average concentrations ranged from 71 µg m–3 (Cerrillos) to 128 µg m–3 (La Pintana), which are within the seasonal ranges observed in Santiago. Twenty five major and trace elements (Fe, Al, Ca, K, Mg, P, Pb, S, Ti, Mn, Cu, Zn, Ba, Zr, Cr, As, Sn, Sb, Ni, V, Li, Co, Cd, La, and Rb) were determined in the present study. Ba, Sb, Cd, As, and Zn, with proportions in the soluble fraction varying from 50% to 98%, were the most soluble elements. On the contrary, the less soluble trace elements were Ti, Sn, Pb, and Cr. Most of the high-solubility trace metals are strongly linked to non-exhaust traffic emissions, as well as to certain industrial sources. Our results evidence the significant amount of soluble trace elements in Santiago’s urban atmosphere classified as toxic and/or carcinogenic, thus suggesting a non-negligible health impact. 2018 artículo científico 0187-6236 https://www.redalyc.org/articulo.oa?id=56557569006 https://www.redalyc.org/journal/565/56557569006/ https://www.redalyc.org/journal/565/56557569006/html/ https://www.redalyc.org/journal/565/56557569006/56557569006.epub https://www.redalyc.org/journal/565/56557569006/movil https://doi.org/10.20937/ATM.2018.31.04.05 en http://www.redalyc.org/revista.oa?id=565 Atmósfera application/pdf Universidad Nacional Autónoma de México Atmósfera (México) Num.4 Vol.31 |
| title | Partitioning of the water soluble versus insoluble fraction of trace elements in the city of Santiago, Chile |
| topic | Biología PM10 Megacity trace metals road traffic atmospheric pollution |
| url | https://www.redalyc.org/articulo.oa?id=56557569006 https://www.redalyc.org/journal/565/56557569006/ https://www.redalyc.org/journal/565/56557569006/html/ https://www.redalyc.org/journal/565/56557569006/56557569006.epub https://www.redalyc.org/journal/565/56557569006/movil https://doi.org/10.20937/ATM.2018.31.04.05 |