The environmental geochemical baseline, background and sources of metal and metalloids present in urban, peri-urban and rural soils in the O´Higgins region, Chile
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Published:2021-10-09
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Volume:
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ISSN:0269-4042
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Container-title:Environmental Geochemistry and Health
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language:en
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Short-container-title:Environ Geochem Health
Author:
Valdés Durán Ana,Aliaga Guillermo,Deckart Katja,Karas Cyrus,Cáceres Dante,Nario Adriana
Abstract
AbstractThe importance of environmental geochemistry baseline in soils of O´Higgins Region, Chile, since it hosts in its eastern area one of the major Cu-Mo producing mines in the country, is to establish and explain relationships between the chemical compositions of the Earth’s surface and potential contaminants sources such as mining industry, agriculture and urban activity. A total of 109 samples of urban, peri-urban and rural soils were analyzed with X-ray fluorescence to determine most of the elemental concentrations analyzed. The C and S analyses were performed with the high-temperature combustion method, and a MERCUR mercury analyzer was used for Hg. The study shows that the distribution patterns for most major elements and some trace elements are controlled by the lithologic substrate. This study identified areas with metals and metalloids in high concentrations, which are a risk to the environment and health according to established international regulations. Some of these components correspond to Cu (2500 ppm), Mo (26,5 ppm), As (134,6 ppm), Cr (206.6 ppm), Hg (0.2 ppm), Ni (26.4 ppm), Pb (61.7 ppm), V (227,2 ppm) and Zn (180.3 ppm). Through an elementary association analysis, most of these elements resulted from extractive activities of Cu, metal alloys and oil combustion. It was also possible to trace the use of fertilizers and pesticides in agricultural soils, as well as the combustion of oil related to vehicles in the study area. This information is relevant to implement environmental management strategies to control possible exposure to toxic compounds to human health.
Funder
Comisión Nacional de Investigación Científica y Tecnológica
Publisher
Springer Science and Business Media LLC
Subject
Geochemistry and Petrology,General Environmental Science,Water Science and Technology,Environmental Chemistry,General Medicine,Environmental Engineering
Reference46 articles.
1. Ahumada, I., Escudero, P., Ascar, L., Mendoza, J., & Richter, P. (2004). Extractability of arsenic, copper, and lead in soils of a mining and agricultural zone in central Chile. Communications in Soil Science and Plant Analysis, 35, 1615–1634. https://doi.org/10.1081/CSS-120038558 2. Albanese, S., Cicchela, D., Lima, A., & De Vivo, B. (2008). Urban geochemical mapping. In B. De Vivo, H. E. Belkin, & A. Lima (Eds.), Environmental geochemistry site characterization, data analysis and case histories. The Netherlands: Elsevier. 3. Alfaro, A., Falcón, F., Arenas, M., Garrido, N., Espinoza, M. C., Gajardo, A., Cervetto, M., Valdés, A., Aliaga, G., Opazo, E., Ramírez, P., Neira, H., & Carrasco, R. (2017). Carta Geológica de Chile, Serie Geología Ambiental, 1:100.000. Geología para el Ordenamiento Territorial: Área de Rancagua, Región Libertador Bernardo O’Higgins. Servicio Nacional de Geología y Minería, 5, 1–111. 4. Alloway, B., 2013. Heavy Metals in Soils. Trace Metals and Metalloids in Soils and their Bioavailability, third ed, Environmental Pollution 5. Arenberg, M., & Arai, Y. (2018). Uncertainties in soil physicochemical factors controlling phosphorus mineralization and immobilization processes. Advances in Agronomy. https://doi.org/10.1016/bs.agron.2018.11.005
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