Journal ArticleDOI
Equilibrium partitioning of heavy metals in dutch field soils. II. Prediction of metal accumulation in earthworms
René P. T. Janssen,Leo Posthuma,Rob Baerselman,Henri A. den Hollander,Rens P. M. Van Veen,Willie J.G.M. Peijnenburg +5 more
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In this article, a soil invertebrate species was exposed in 20 Dutch field soils with moderate metal contamination, and the Earthworms (Eisenia andrei) were kept in the soils for 3 weeks under laboratory conditions.Abstract:
To evaluate the adequacy of the equilibrium partitioning concept in predicting metal bioaccumulation, a soil invertebrate species was exposed in 20 Dutch field soils with moderate metal contamination. Earthworms (Eisenia andrei) were kept in the soils for 3 weeks under laboratory conditions. Bioconcentration factors (BCFs) for six metals (Zn, Cu, Pb, Cd, Cr, Ni) and for As were calculated as the ratio of body- and solid-phase metal concentrations. Multivariate statistical analyses suggested that the BCFs for As, Cd, Cu, and Zn are governed by the same soil characteristics that determine equilibrium partition coefficients between the soil solid phase and the pore water. This suggests that uptake of metals is either direct from the pore water or indirect through an uptake route closely related to pore water. Regression equations were derived for predicting BCF values as a function of easily determinable soil characteristics. By means of internal validation it was shown that the equations obtained can be used for predictive purposes within the range of soil properties encountered in the dataset. Due to a lack of data, external validation was possible only in a qualitative sense.read more
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Journal ArticleDOI
Soil testing for heavy metals.
TL;DR: Soil testing for metal contaminants is a continually evolving process aimed at improving the assessment of environmental and human health hazards associated with heavy metals in soils and plants as mentioned in this paper, which is a challenge for accurate, reliable and precise contaminant hazard assessment criteria for soil and plants can be made.
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A review of studies performed to assess metal uptake by earthworms.
TL;DR: There is a need for more studies on earthworm species other than Eisenia fetida in order to apply the large existing database on this earthworm to other, soil dwelling species.
Journal ArticleDOI
Bioaccumulation of heavy metals in terrestrial invertebrates
TL;DR: The differences in accumulation level between taxonomic groups show the relevance of including detailed information on feeding behaviour in risk assessment for invertebrate-eating animals.
Journal ArticleDOI
What do sentinels stand for
TL;DR: The validation of sentinels is examined, referring particularly to the use of invertebrates in monitoring toxic metal pollution in terrestrial ecosystems and a simple measure of their capacity to detect differences in ambient pollutant levels is proposed to evaluate candidate species.
References
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Book
Chemical equilibria in soils
TL;DR: In this paper, Chemical equilibria in soils, chemical equilibrium in soil, Chemical equilibrium in soils, مرکز فناوری اطلاعات و اشعر رسانی, ک-شاouرزی
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Chemical speciation in the environment
TL;DR: Speciation in fresh water, estuarine seawater, soils and sewage sludges, and radioactive elements: general strategy and recent developments.
Journal ArticleDOI
Effects of cadmium, copper, lead and zinc on growth, reproduction and survival of the earthworm Eisenia fetida (Savigny): Assessing the environmental impact of point-source metal contamination in terrestrial ecosystems.
TL;DR: It was confirmed that zinc is most likely to be responsible for the absence of earthworms from sites close to the Avonmouth works, since the OECD standard test overestimated the potential effects of metals on populations, since earthworms can be found as close as 1 km from the smelting works.
Book
Bioavailability: Physical, Chemical, and Biological Interactions
TL;DR: Bioavailability reviews prevalent understanding of the physical-chemical-biological mechanisms that control the bioavailability of both organic and inorganic contaminants in aquatic environments as discussed by the authors, discusses the complex issues that surround many regulatory issues, and emphasizes the need to identify and control that portion of the total concentration that is biologically available and can cause adverse effects.
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Extrapolation of the laboratory-based OECD earthworm toxicity test to metal-contaminated field sites.
TL;DR: Comparison of toxicity values for the metals determined in the experiments indicated that zinc is most likely to be limiting earthworm populations in the vicinity of the smelting works.