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  • Risk characterization of nickel in sediments

    Risk characterization of nickel in sediments Draft report Prepared for Danish Environmental Protection Agency Represented by Henning Clausen, Henrik Tyle Project No 18810814 Classification /for circulation Authors Jens Tørsløv Peter Kortegaard Contributors Marnix Vangheluwe, ARCHE Keegan Hicks, Nickel Institute

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  • Topical Scientific Workshop on Risk Assessment for the

    nickel in sediment (PNECsediment), and predictive model for bioavailability and toxicity of nickel in freshwater sediments. A provisional risk characterization (RC) was performed using emissions from Ni producing and downstream user industry sectors. The RC highlighted the importance of the uncertainty analysis component of the EU risk assessment

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  • Preparation and characterization of nickel‐spiked

    Preparation and characterization of nickel‐spiked freshwater sediments for toxicity tests: Toward more environmentally realistic nickel partitioning Development of a bioavailability‐based risk assessment approach for nickel in freshwater sediments, Integrated Environmental Development and application of predictive bioavailability

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  • Summary report and recommendations for RM of nickel in

    exceeding EQS for nickel in freshwater sediments and risk characterization for sediments. 8 Annexes: Background reports: Letter from NiPERA reporting the outcome of the conclusion of the sediment testing program, Now 18 th referring to research and reports commissioned by NiPERA. An Executive Summary drafted by the

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  • Field measurement of nickel sediment toxicity: Role of

    Christian E Schlekat, Emily R Garman, Marnix LU Vangheluwe, G Allen Burton, Development of a bioavailability‐based risk assessment approach for nickel in freshwater sediments, Integrated Environmental Assessment and Management, 10.1002/ieam.1720, 12, 4, (735-746), (2016).

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  • Development of a bioavailability‐based risk assessment

    To assess nickel (Ni) toxicity and behavior in freshwater sediments, a large‐scale laboratory and field sediment testing program was conducted. The program used an integrative testing strategy to generate scientifically based threshold values for Ni in sediments and to develop integrated equilibrium partitioning‐based bioavailability models

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  • Case Study: Bioavailability-based effects assessment for

    chemical characterization for nickel spiked sediments Supporting field based toxicity data and chemical characterization-phase speciation data for laboratory spiked sediments Preliminary risk characterization for Ni emitting industries in Technical oversight by TC i) Group, which was comprised

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  • WHEN BACKGROUND RISKS ARE IMPORTANT: METALS IN SOIL

    Background issues are addressed during risk characterization rather than in COPC selection. This newer approach presents a more thorough picture of risks, but may generate SOURCE OF METALS: Natural deposits of nickel and chromium in soils and sediments from ultramafic serpentine rock. HISTORY: Soil and rock used as fill for buildings and

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  • Risk Assessment Report on nickel and its compounds

    Risk Assessment Report on nickel and its compounds Environmental Part CAS No.: 7440-02-0, 7786-81-4, 3333-67-3, 7718-54-9, 13138-45-9 3.9 3.8 in sediment (Gunn et al., 1992 and Heijerick & Van Sprang, 2004b). This observation should be kept in mind in the further evaluation and interpretation of the results. In fact, the results could

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  • Environmental Risk Assessment Resulting from Sediment

    1 天前· Due to wide use of perfluoroalkyl substances (PFASs) (e.g., in metal-plating, in fire-fighting foam, lubricants) and their resistance to degradation, they occur widely in the environment. The aim of this study was to estimate the environmental risk resulting from the presence of PFASs in the Gulf of Gdansk. Therefore, 17 PFASs concentrations were determined using ultra performance liquid

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  • Preparation and characterization of nickel‐spiked

    Preparation and characterization of nickel‐spiked freshwater sediments for toxicity tests: Toward more environmentally realistic nickel partitioning Development of a bioavailability‐based risk assessment approach for nickel in freshwater sediments, Integrated Environmental Development and application of predictive bioavailability

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  • Nickel Phase Partitioning and Toxicity in Field-Deployed

    Preparation and characterization of nickel-spiked freshwater sediments for toxicity tests: Toward more environmentally realistic nickel partitioning. Environmental Toxicology and Chemistry 2013, 62, n/a-n/a. DOI: 10.1002/etc.2272. G. Allen Burton. Assessing sediment toxicity: Past, present, and future.

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  • Development of a bioavailability‐based risk assessment

    To assess nickel (Ni) toxicity and behavior in freshwater sediments, a large‐scale laboratory and field sediment testing program was conducted. The program used an integrative testing strategy to generate scientifically based threshold values for Ni in sediments and to develop integrated equilibrium partitioning‐based bioavailability models

    Details >
  • WHEN BACKGROUND RISKS ARE IMPORTANT: METALS IN

    Background issues are addressed during risk characterization rather than in COPC selection. This newer approach presents a more thorough picture of risks, but may generate SOURCE OF METALS: Natural deposits of nickel and chromium in soils and sediments from ultramafic serpentine rock. HISTORY: Soil and rock used as fill for buildings and

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  • DATA COMPILATION, SELECTION, AND Nickel Institute

    into sediment risk assessment guidance (ECHA,2014). The nickel sediment research program addressed many of the developments that were discussed at the ECHA workshop and represents an ex-ample for how research findings can be implemented into sediment risk assessment. The conceptual model of the integrated bioavail-

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  • Evaluation of the environment risk, fractions and

    Highlights•Ni may frequently pose an environment risk in the study area.•Ni was mainly bound to the residual fraction of the sediment.•The remobilization of Ni in the sediment was related to the release of Fe and S.AbstractThe Jialing River is one of the largest tributaries of the Yangtze River and has the largest drainage area.

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  • Characterisation, Availability, and Risk Assessment of the

    Apr 23, 2010· Abstract. The behavior of metals in sediments after their disposal to land has important implications for the environmental management. The sediment from the Carska Bara (Serbia) was polluted with adequate metal salts in order to reach severe contamination based on the pseudo-total metal content of Pb, Cd, Ni, Zn, Cu, and Cr according to the corresponding Dutch standards and

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  • Cottage Grove Landfill Ecological Risk Assessment Region

    Nickel (Ni) 5. Potassium (K) 3. Vanadium (V) 1. Cyanide : 1. Sediment (5 total samples) Phenanthrene : 1. Risk Characterization. DDD may represent an ecological risk in canal sediments, but, again, the exceedance is isolated, and the significance of the risk may be overestimated by the conservative TOC assumption.

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  • Environmental Risk Assessment Resulting from Sediment

    1 天前· Due to wide use of perfluoroalkyl substances (PFASs) (e.g., in metal-plating, in fire-fighting foam, lubricants) and their resistance to degradation, they occur widely in the environment. The aim of this study was to estimate the environmental risk resulting from the presence of PFASs in the Gulf of Gdansk. Therefore, 17 PFASs concentrations were determined using ultra performance liquid

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  • Physico-chemical characteristics and heavy metal

    lead, cadmium, cobalt, copper, chromium, nickel, vana-dium, and zinc as well as for soil physico-chemical prop-erties. The mine waste sediments were dominated by silt whilst the forest soil by sand particles, with significantly high bulk density in the former. Both the forest soil and overburden sediments were acidic than the alkaline tailings

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  • PRESENTATION ON USE OF AMBIENT SEDIMENT DATA IN

    Use of Ambient Sediment Data In Risk Assessments Regulatory agencies are recommending that ambient conditions should be considered during the risk characterization step of the ecological risk assessment, and that ambient conditions should not be used as a tool for screening out constituents of potential Nickel 33/33 15.5 46.2 50.76 99

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  • Freshwater Sediment Screening Benchmarks for Use Under

    the environment from sediment contamination. If each detected sediment contaminant concentration is equal to or less than the sediment screening criterion for the contaminant, no further evaluation of the risk of harm from the sediment is required. In other words, a Stage II Risk Characterization is not

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  • SECONDARY POISONING RISK ASSESSMENT OF Nickel

    EU Risk Assessment Reports (RARs) for the environment for (metallic nickel, nickel carbonate, nickel chloride, nickel nitratenickel substances and nickel,sulfate) were submitted in the spring of 2008 after thorough review by the Technical Committee on New and

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  • Land and Lakes Landfill Ecological Risk Assessment

    Exposure Estimates & Risk Characterization. The sediments of the ditches that drain the south and west sides of the landfill are highly contaminated with PAHs. Other COCs that repeatedly exceed sediment benchmark values include dieldrin, DDT/DDD/DDE, endosulfan, chlordane, PCBs and lead (Pb). The following COCs exceed benchmark values in one or

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