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| Format: | Artículo científico |
| Language: | en |
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Academia Brasileira de Ciências
2010
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| Online Access: | https://www.redalyc.org/articulo.oa?id=32713482003 |
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| _version_ | 1866815433276915712 |
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| author | Javier Garcia-Guinea |
| author_facet | Javier Garcia-Guinea |
| contents | Influence of accumulation of heaps of steel slag on the environment: determination of heavy metals content in the soils Javier Garcia-Guinea Virgilio Correcher Lorena Recio-Vazquez Elena Crespo-Feo Rafael Gonzalez-Martin Laura Tormo Multidisciplinaria (Ciencias Naturales y Exactas) TL EDS XRD XRF ESEM The presence of high level of heavy metals involves a human healthy risk that could induce chronic diseases. This work reports on the metal contamination due to heaps of steel-slag accumulated during more than 40 years in allotments and industrial areas in the southern part of Madrid (Spain). Several slag and soil samples were collected in an area of 10 km² and characterized by different conventional (XRD and XRF) and no so common methods (ESEM, thermoluminescence and EDS-WDS). The analysis reveal the presence of: (i) important amounts of Fe (43%), Mg (26%), Cr (1.1%), Mn (4.6%), S (6.5%) in the form of Fe-rich slag phases (wustite, magnetite...), Si and Ca-rich phases (larnite, ghelenite...), Cr (chromite), Mn (bustamite) and graphite, (ii) traces of some other contaminants such as Cr (7700 ppm), Zn (3500 ppm), Ba (3000 ppm), Pb (700 ppm) or Cu (500 ppm) on pathway soil samples that come from the steel slag, and (iii) Co (13 ppm), Pb (78 ppm) and V (54 ppm) in farmland soil samples. Although the existing heavy metals content is not appropriate for the current use, the extremely high metal contamination of the surrounding areas is more worrying. The properties of the soil farmlands (pH circa 7, 13% of clay, mainly illite, and 1-4% of organic matter content) show suitable conditions for the retention of cationic metals, but further studies on the movilization of these elements have to be performed to determine the possibility of severe human health risks. This sort of study can provide useful information for the politicians regarding the appropriate use of the territory to prevent possible health hazard for the population. 2010 artículo científico 0001-3765 https://www.redalyc.org/articulo.oa?id=32713482003 en http://www.redalyc.org/revista.oa?id=327 Anais da Academia Brasileira de Ciências application/pdf Academia Brasileira de Ciências Anais da Academia Brasileira de Ciências (Brasil) Num.2 Vol.82 |
| format | Artículo científico |
| id | redalyc_32713482003 |
| language | en |
| publishDate | 2010 |
| publisher | Academia Brasileira de Ciências |
| spellingShingle | Influence of accumulation of heaps of steel slag on the environment: determination of heavy metals content in the soils Javier Garcia-Guinea Multidisciplinaria (Ciencias Naturales y Exactas) TL EDS XRD XRF ESEM Influence of accumulation of heaps of steel slag on the environment: determination of heavy metals content in the soils Javier Garcia-Guinea Virgilio Correcher Lorena Recio-Vazquez Elena Crespo-Feo Rafael Gonzalez-Martin Laura Tormo Multidisciplinaria (Ciencias Naturales y Exactas) TL EDS XRD XRF ESEM The presence of high level of heavy metals involves a human healthy risk that could induce chronic diseases. This work reports on the metal contamination due to heaps of steel-slag accumulated during more than 40 years in allotments and industrial areas in the southern part of Madrid (Spain). Several slag and soil samples were collected in an area of 10 km² and characterized by different conventional (XRD and XRF) and no so common methods (ESEM, thermoluminescence and EDS-WDS). The analysis reveal the presence of: (i) important amounts of Fe (43%), Mg (26%), Cr (1.1%), Mn (4.6%), S (6.5%) in the form of Fe-rich slag phases (wustite, magnetite...), Si and Ca-rich phases (larnite, ghelenite...), Cr (chromite), Mn (bustamite) and graphite, (ii) traces of some other contaminants such as Cr (7700 ppm), Zn (3500 ppm), Ba (3000 ppm), Pb (700 ppm) or Cu (500 ppm) on pathway soil samples that come from the steel slag, and (iii) Co (13 ppm), Pb (78 ppm) and V (54 ppm) in farmland soil samples. Although the existing heavy metals content is not appropriate for the current use, the extremely high metal contamination of the surrounding areas is more worrying. The properties of the soil farmlands (pH circa 7, 13% of clay, mainly illite, and 1-4% of organic matter content) show suitable conditions for the retention of cationic metals, but further studies on the movilization of these elements have to be performed to determine the possibility of severe human health risks. This sort of study can provide useful information for the politicians regarding the appropriate use of the territory to prevent possible health hazard for the population. 2010 artículo científico 0001-3765 https://www.redalyc.org/articulo.oa?id=32713482003 en http://www.redalyc.org/revista.oa?id=327 Anais da Academia Brasileira de Ciências application/pdf Academia Brasileira de Ciências Anais da Academia Brasileira de Ciências (Brasil) Num.2 Vol.82 |
| title | Influence of accumulation of heaps of steel slag on the environment: determination of heavy metals content in the soils |
| topic | Multidisciplinaria (Ciencias Naturales y Exactas) TL EDS XRD XRF ESEM |
| url | https://www.redalyc.org/articulo.oa?id=32713482003 |