Prediction of Metal Bioavailability in Dutch Field Soils for the Oligochaete Enchytraeus crypticus

Peijnenburg, Willie J.G.M.; Posthuma, Leo; Zweers, P.G.P.C.; Baerselman, R.; Groot, Arthur C. de; Veen, Rens P. M. Van; Jager, Tjalling

doi:10.1006/eesa.1999.1773

Cited by 113 publications

(89 citation statements)

References 19 publications

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“…Moreover, the expected decrease of BCFworms concentrations with the increase of soil concentration (Nahmani et al, 2007;Spurgeon and Hopkin, 1999) was not observed in this work. These results are consistent with the capacity of earthworms to partially regulate concentrations of contaminants in their body, especially in the case of essential metals such as Zn and Cu (Langdon et al, 2003;Lee and Kim, 2008;Peijnenburg et al, 1999). …”

Section: Exposure Assessmentsupporting

confidence: 85%

Screening risk assessment tools for assessing the environmental impact in an abandoned pyritic mine in Spain

Moreno-Jiménez

García‐Gómez

Oropesa

et al. 2011

Science of The Total Environment

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El acceso a la versión del editor puede requerir la suscripción del recurso Access to the published version may require subscription This paper describes a new methodology for assessing site-specific environmental impact of contaminants. The proposed method integrates traditional risk assessment approaches with real and variable environmental characteristics at a local scale. Environmental impact on selected receptors was classified for each environmental compartment into 5 categories derived from the whole (chronic and acute) risk assessment using 8 risk levels. Risk levels were established according to three hazard quotients (HQs) which represented the ratio of exposure to acute and chronic toxicity values. This tool allowed integrating in only one impact category all the elements involved in the standard risk assessment. The methodology was applied to an abandoned metal mine in Spain, where high levels of As, Cd, Zn and Cu were detected. Risk affecting potential receptors such as aquatic and soil organisms and terrestrial vertebrates were assessed. Whole results showed that impact to the ecosystem is likely high and further investigation or remedial actions are necessary. Some proposals to refine the risk assessment for a more realistic diagnostic are included.Published by Elsevier B.V.

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Section: Exposure Assessmentsupporting

confidence: 85%

Screening risk assessment tools for assessing the environmental impact in an abandoned pyritic mine in Spain

Moreno-Jiménez

García‐Gómez

Oropesa

et al. 2011

Science of The Total Environment

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“…Klepper and Den Hollander, 1999;Van den Hout et al, 1998;Stolwijk et al, 1998) may be an improvement in the fate, exposure and effect assessment of metals. Moreover, in these spatially explicit models it may be easier to account for currently lacking site-dependent processes in USES-LCA, such as the site dependent slow conversion of reversibly adsorbed heavy metals into forms irreversibly adsorbed to the soil matrix (Harmsen, 1992;De Vries and Bakker, 1998) and corresponding uptake of metals by organisms (Peijnenburg et al, 1997(Peijnenburg et al, , 1999. Including these processes may substantially decrease all metal TETPs and toxicity potentials after emission to the soil and air compartments and TETPs of metals, and lower the time horizon dependent differences between these toxicity potentials.…”

Section: Uses-lcamentioning

confidence: 99%

Uncertainty and variability in environmental life-cycle assessment

Huijbregts

2002

Int J LCA

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General introductionIncreased rates of resource depletion, land use, solid waste generation and emissions of pollutants became issues of broad public concern in the beginning of the seventies (Meadows et al., 1972). Unfortunately, most of these problems are still with us today, and some of them have increased substantially (World Resources Institute, 1996). One way to decrease the environmental pressure of human activities is the environmentally improvement of production processes (Reijnders, 1996). In this respect, an important question to be answered is 'how exactly can we measure the environmentally improvement of production processes?' Environmental life-cycle assessment (LCA) aims to answer that question. The first section of this chapter provides an overview of the LCA framework. Although the framework itself is well-established, the application of the framework is in many aspects problematic. A brief overview of the problems associated with the actual implementation of the framework is described in second paragraph. Finally, the aim and the structure of the present thesis is outlined in the third paragraph. § 1.1 Environmental life cycle assessment Environmental life cycle assessment (LCA) is a tool for the assessment of the environmental impact of product systems (Heijungs et al. 1992). It considers the full life cycle of a product from resource extraction to waste disposal. LCA is generally divided into four phases: goal and scope definition, inventory analysis, impact assessment, and interpretation (Figure 1.1; ISO, 1997a).In the goal and scope definition, the aim and the subject of an LCA study are determined and a 'functional unit' is defined. An example of a functional unit is 'the consumption of 100 kg apples' with, for instance, the aim to compare the environmental impacts of different agricultural production processes of apples. In the inventory analysis, for each of the product systems considered data are gathered for all the relevant processes involved in the life cycle. A product system can be considered as a combination of processes needed for the functioning of a product or service. The outcome of the inventory analysis is a list of all extractions of resources and emissions of substances caused by the functional unit for every product system considered, generally disregarding place and time of the extractions and releases. The matrix method can be used to perform the inventory analysis (Heijungs, 1996(Heijungs, , 1997 where i is the vector of environmental interventions, H is the environmental intervention matrix, representing the extractions of resources and emissions of substances per unit process, G is the technology matrix representing the inter-process flows needed for the functioning of the product system, and u is the external supply vector, related to the functional unit. Life cycle impact assessment (LCIA) aims to improve the understanding of the inventory result. Firstly, it is determined which extractions and emissions contribute to which impact categories. An impact category can...

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“…Hence, our third aim is to derive solid-solution partitioning models for metals based on the 0.01 M CaCl 2 extracts. Dilute salt extracts and soil-solution partitioning models are used as practical tools in risk assessment studies in well-aerated soils (Peijnenburg et al 1999;Pueyo et al 2004;Schröder et al 2005;Meers et al 2007), but it is unclear if they are applicable for predicting the directly available metal pools in paddy fields as well which are characterized by a frequent shift from aerobic to anaerobic conditions during the growing season. Shifting redox conditions can lead to a change in the directly available pool and our fourth aim, therefore, is to compare the size of the directly available pool at the two harvest times.…”

mentioning

confidence: 99%

Characterization of soil heavy metal pools in paddy fields in Taiwan: chemical extraction and solid-solution partitioning

et al. 2009

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Background, aim, and scope Ongoing industrialization has resulted in an accumulation of metals like Cd, Cu, Cr, Ni, Zn, and Pb in paddy fields across Southeast Asia. Risks of metals in soils depend on soil properties and the availability of metals in soil. At present, however, limited information is available on how to measure or predict the directly available fraction of metals in paddy soils. Here, the distribution of Cd, Cu, Cr, Ni, Zn, and Pb in 19 paddy fields among the total, reactive, and directly available pools was measured using recently developed concepts for aerated soils. Solid-solution partitioning models have been derived to predict the directly available metal pool. Such models are proven to be useful for risk assessment and to derive soil quality standards for aerated soils. , and directly available metal pools (0.01 M CaCl 2 ) were determined. Solid-solution partitioning models were derived by multiple linear regressions using an extended Freundlich equation using the reactive metal pool, pH, and the cation exchange capacity (CEC). The influence of Zn on metal partitioning and differences between both sampling events (May/November) were evaluated. Results Total metals contents range from background levels to levels in excess of current soil quality standards for arable land. Between 3% (Cr) and 30% (Cd) of all samples exceed present soil quality standards based on extraction with AR. Total metal levels decreased with an increasing distance from the irrigation water inlet. The reactive metal pool relative to the total metal content is increased in the order Cr << Ni = Zn < Pb < Cu < Cd and ranged from less than 10% for Cr to more than 70% for Cd. Despite frequent redox cycles, Cd, Pb, and Cu appear to remain rather reactive. The methods to determine the reactive metal pool in soils yield comparable results, although the 0.43 M HNO 3 extraction is slightly stronger than HCl and EDTA. The close correlation between these methods suggests that they release similar fractions from soils, probably those reversibly sorbed to soil organic matter (SOM) and clay. The average directly available pool ranged from less than 1% for Cu, Pb, and Cr to 10% for Ni, Zn, and Cd when compared to the reactive metal pool. For Cd, Ni, Zn, and to a lesser extent for Cu and Pb, solid-solution partitioning models were able to explain up to 93% (Cd) of the observed variation in the directly available metal pool. CaCl 2 extractable Zn increased the directly available pool for Ni, Cd, and Cu but not that of Pb and Cr. In the polluted soils, the directly available pool was higher in November compared to that in May. Differences in temperature, rainfall, and changes in soil properties such as pH are likely to contribute to the differences observed within the year. The solid-solution partitioning model failed to explain the variation in the directly available Cr pool, probably because Cr is present in precipitates rather than being adsorbed onto SOM and clay. Despite obvious differences in parent material, source of pollu...

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Prediction of Metal Bioavailability in Dutch Field Soils for the Oligochaete Enchytraeus crypticus

Cited by 113 publications

References 19 publications

Screening risk assessment tools for assessing the environmental impact in an abandoned pyritic mine in Spain

Screening risk assessment tools for assessing the environmental impact in an abandoned pyritic mine in Spain

Uncertainty and variability in environmental life-cycle assessment

Characterization of soil heavy metal pools in paddy fields in Taiwan: chemical extraction and solid-solution partitioning

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