Bioavailability of Metals

L., Dynamic speciation analysis and bioavailability of metals in aquatic systems, Environ Sci Technol,... 

Zhao K, Liu X, Zhang W, Xu J, Wang F (2011) Spatial dependence and bioavailability of metal fractions in paddy fields on metal concentrations in rice grain at a regional scale. J Soils Sediments 11(7) 1165—1177. doi 10.1007/s 11368-011-0408-6... 

Bioavailability of Metals, Nonmetals and Xenobiotics Immobilized on Soil Components, (4) Distribution and Activity of Biomolecules in Terrestrial Systems, (5) Interactions between Soil Microbial Biomass and Organic Matter/Nutrient Transformations, and (6) Impact of Interactions among Soil Mineral Colloids, Organic Matter and Biota on Risk Assessment and Restoration of Terrestrial Ecosystems. There were 2 plenary lectures, 9 invited speakers, 36 oral presentations and 45 posters. Dr. N. Senesi from University of Bari, Italy, presented an IUPAC lecture entitled Metal-Humic... 

Hopkin, S.P., D.T. Jones, and D. Dietrich. 1993. The isopod Porcellio scaber as a monitor of the bioavailability of metals in terrestrial ecosystems towards a global woodlouse watch scheme. Sci. Total Environ., Suppl. 1993, Part 1 357-365. 

Pascoe, G.A., R.J. Blanchet, and G. Linder. 1994. Bioavailability of metals and arsenic to small mammals at a mining waste-contaminated wetland. Arch. Environ. Contam. Toxicol. 27 44-50. 

Complexation by organic matter causes a wide variety of effects on the bioavailability of metals. As noted earlier, the toxicity of dissolved copper can be reduced by complexation with organic matter. In this case, complexed copper is not biologically available to phytoplankton. The other extreme is exhibited by iron, in which the metal s bioavailability is enhanced by complexation with organic matter. There are two likely... 

Neff, J.M. (2008) Estimation of bioavailability of metals from drilling mud barite. Integr. Environ. Assess. Manage, 2, 184-193. 

A connection was found between the bioavailability of metals and their toxicity... 

In the case of soils, there has been surprisingly little consideration of factors that modulate the bioavailability of metals. In this respect it is necessary to develop methods that contain qualitative and quantitative descriptions of differences in bioavailability between soils typically used for laboratory testing and field soils, between contaminated and noncontaminated (natural background) soils, and among contaminated held soils. 

Extrapolation Tools Related to Exposure and Bioavailability of Metals... 

Bioavailability of metals in soil and sediments is a topic that requires strengthening from a scientific point of view. Chemical speciation models for metals in soil and sediment are in the process of being developed. Media- and matrix-related differences in intrinsic sensitivity of species comprise a topic that deserves to be studied. 

Feng, M. H., Shan, X. Q., Zhang, S., and Wen, B. (2005a). A comparison of the rhizosphere-based method with DTPA, EDTA, CaCl2, and NaNC>3 extraction methods for prediction of bioavailability of metals in soil to barley. Environ. Pollut. 137, 231—240. 

Peijnenburg WJD, Posthuma L, Eijsackers HJP, Allen HE. 1997. A conceptual framework for implementation of bioavailability of metals for environmental management purposes. Ecotoxicol Environ Saf 16 163-172. 

As it has already been discussed, one important aspect regarding the bioavailability of metals is its dependence on the molecular moieties involving the binding of the elements. In tea infusions metals are generally bound to large... 

Allen HE, editor. 2002. Bioavailability of metals in terrestrial ecosystems importance of partitioning for bioavailability to invertebrates, microbes, and plants. Metals and the Environment Series. New York SETAC. 

Peijnenburg WJGM, Jager T. 2003. Monitoring approaches to assess bioaccessibility and bioavailability of metals matrix issues. Ecotoxicol Environ Safety 56 63-77. 

Slaveykova VI, Wilkinson KJ. 2005. Predicting the bioavailability of metals and metal complexes critical review of the biotic ligand model. Environ Chem 2 9-24. 

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