Assessing the ecotoxicological effects of long-term contaminated mine soils on plants and earthworms. Relevance of soil (total and available) and body concentrations
Entity
UAM. Departamento de Química AgrícolaPublisher
Springer Science + Business MediaDate
2014-05-14Citation
10.1007/s10646-014-1262-2
Ecotoxicology 23.7 (2014): 1195-1209
ISSN
0963-9292 (print); 1573-3017 (on line)DOI
10.1007/s10646-014-1262-2Funded by
This work was financed by the Community of Madrid through the EIADES Project (S-2009/AMB/1478) ) and by the Spanish Ministry of Education and Science project CTM2010-21922-C02-02Project
Comunidad de Madrid. S2009/AMB-1478/EIADESEditor's Version
http://dx.doi.org/10.1007/s10646-014-1262-2Subjects
Accumulation; Availability; Earthworms; Plants; Toxicity; Trace-elements-contaminated soils; QuímicaNote
The final publication is available at Springer via http://dx.doi.org/10.1007/s10646-014-1262-2Rights
© 2014 Springer Science+Business MediaAbstract
The interactions and relevance of the soil (total and available) concentrations, accumulation, and acute toxicity of several essential and non-essential trace elements were investigated to determine their importance in environmental soil assessment. Three plant species (T. aestivum, R. sativum, and V. sativa) and E. fetida were simultaneously exposed for 21 days to long-term contaminated soils collected from the surroundings of an abandoned pyrite mine. The soils presented different levels of As and metals, mainly Zn and Cu, and were tested at different soil concentrations [12.5, 25, 50, and 100 % of contaminated soil/soil (w/w)] to increase the range of total and available soil concentrations necessary for the study. The total concentrations in the soils (of both As and metals) were better predictors of earthworm uptake than were the available concentrations. In plants, the accumulation of metals was related to the available concentrations of Zn and Cu, which could indicate that plants and earthworms.accumulate elements from different pools of soil contaminants. Moreover, Zn and Cu, which are essential elements, showed controlled uptake at low concentrations. The external metal concentrations predicted earthworm mortality, whereas in plants, the effects on growth were correlated to the As and metal contents in the plants. In general, the bioaccumulation factors were lower at higher exposure levels, which implies the existence of auto-regulation in the uptake of both essential and non-essential elements by plants and earthworms
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Google Scholar:García-Gómez, Concepción
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Esteban Fernández, Elvira
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Sánchez-Pardo, Beatriz
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Fernández, María Dolores
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