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Assessing the ecotoxicological effects of long-term contaminated mine soils on plants and earthworms: relevance of soil (total and available) and body concentrations.

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Assessing the ecotoxicological effects of long-term contaminated mine soils on plants and earthworms: relevance of soil (total and available) and body concentrations.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	García-Gómez, Concepción Esteban, Elvira Sánchez-Pardo, Beatriz Fernández, María Dolores
Spatial Coverage	Spain
Description	Country affiliation: Spain Author Affiliation: García-Gómez C ( Environment Department, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Ctra. A Coruña, km 7.5, 28040, Madrid, Spain.)
Abstract	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.
File Format	HTM / HTML
ISSN	09639292
Issue Number	7
Volume Number	23
e-ISSN	15733017
Journal	Ecotoxicology
Language	English
Publisher	Springer
Publisher Date	2014-09-01
Publisher Place	United States
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Discipline Ecology Discipline Environmental Health Discipline Toxicology Environmental Monitoring Mining Oligochaeta Drug Effects Plants Soil Pollutants Toxicity Animals Arsenic Copper Ecotoxicology Environmental Pollution Iron Soil Chemistry Spain Sulfides Zinc Journal Article Research Support, Non-u.s. Gov't
Content Type	Text
Resource Type	Article
Subject	Health, Toxicology and Mutagenesis Medicine Toxicology Management, Monitoring, Policy and Law

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Assessing the ecotoxicological effects of long-term contaminated mine soils on plants and earthworms: relevance of soil (total and available) and body concentrations.

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