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risk characterization of nickel in sediments

risk characterization of nickel in sediments

Risk characterization of nickel in sediments

This is done by characterisation of the risks to sediments exposed to discharges from industries within the sectors of nickel producers and nickel downstream users. The characterisation is made for industry sectors and sites where discharge data have been updated due to the REACH registra- tion of nickel in 2010.

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Sediment workshop - ECHA - Europa

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 28 58.693 Ni Nickel

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Fact Sheet 9: Incorporation of ... - Nickel Institute

The initial EU Risk Assessments for Nickel and Nickel Compounds were developed over the period from 2002 to 2008 but the European Commission identified some remaining data gaps with respect to the sediment compartment (Official Journal of the European Union 2008).

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Environmental Fact Sheet 8: Data ... - Nickel Institute

Researcher demonstrates the new method for spiking nickel into sediments The Existing Substances Risk Assessment of Nickel was completed in 2008. The straightforward explanation of the goals of this exercise was to determine if the ongoing production and use of nickel in the EU caused risks to humans or the environment.

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Development of a bioavailability‐based risk assessment ...

Oct 07, 2015 · 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 for ...

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Characterization and risk assessment of metals in surface ...

Nov 01, 2021 · Wang et al. (2016) found that nickel (Ni), zinc (Zn) and lead (Pb) pollution was more severe than other metals in Liaohe River estuary sediments. Huo (2011) found that metal pollution in surface sediments of Bohai Sea increased closer to shore due to discharge of land-sourced pollutants.

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Characterizing toxicity of metal-contaminated sediments ...

Jun 01, 2015 · In studies of nickel-spiked sediments, normalization of sediment nickel concentrations to SEM-AVS reduced or eliminated differences in nickel toxicity values between sediments with wide differences of AVS and TOC for several species of invertebrates, but had lesser effect on toxicity values for burrowing mayflies (Hexagenia sp.) (Besser et al ...

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Development of a bioavailability‐based risk assessment ...

Jan 06, 2021 · Nickel exposures in the SEAM region result from Ni mining, smelting, and refining, and often occur adjacent to the coast because the vast majority of Ni ores, concentrates, and cathodes are transported by ship to overseas markets.

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RISK CHARACTERIZATION OF CONTAMI NANTS IN PASSAIC

Apr 03, 2013 · RISK CHARACTERIZATION OF CONTAMI NANTS IN PASSAIC RIVER SEDIMENTS, NEW JERSEY . Victor Onwueme and Huan Feng* Department of Earth and Environmental Studies . Montclair State University . Montclair, New Jersey 07043 . ABSTRACT: Sediment data from the Passaic River collected in 1991, 1993, 1995, and 1999 were analyzed

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Risk Characterization Handbook - CLU-IN

of a risk characterization (among them, for example, key findings, policy choices, uncertainty and variability) describe in a straight-forward fashion the critical points that a good risk characterization should contain to make it valuable in any Agency risk assessment.

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Development of a Bioavailability-Based Risk Assessment ...

Using empirical bioavailability relationships to predict nickel toxicity based on sediment chemistry parameters, Schlekat et al. [202] reported ranges of HC5 values from 136 to 437 mg Ni/kg for ...

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Environmental Fact Sheet 8: Data ... - Nickel Institute

The initial EU Risk Assessments for Nickel and Nickel Compounds were developed over the period from 2002 to 2008 but the European Commission identified some remaining data gaps in particular with respect to the sediment compartment (Official Journal of

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DATA COMPILATION, SELECTION, AND ... - nickel-japan

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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RISK CHARACTERIZATION OF CONTAMI NANTS IN

Apr 03, 2013 · RISK CHARACTERIZATION OF CONTAMI NANTS IN PASSAIC RIVER SEDIMENTS, NEW JERSEY . Victor Onwueme and Huan Feng* Department of Earth and Environmental Studies . Montclair State University . Montclair, New Jersey 07043 . ABSTRACT: Sediment data from the Passaic River collected in 1991, 1993, 1995, and 1999 were analyzed

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Risk Characterization Handbook - CLU-IN

of a risk characterization (among them, for example, key findings, policy choices, uncertainty and variability) describe in a straight-forward fashion the critical points that a good risk characterization should contain to make it valuable in any Agency risk assessment.

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Characterization, Behavior, and Risk Assessment of ...

Oct 30, 2021 · Polycyclic aromatic hydrocarbons (PAHs) are persistent toxic substances that have ubiquitous presence in water, air, soil, and sediment environments. The growth of PAH toxicities and related ecotoxicology risk in estuary sediment has a serious concern. Present study examined the PAHs concentration, sources, and ecological risk from selected sites in

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Environmental Health Articles | Nickel Institute

Characterization of the effects of binary metal mixtures on short-term uptake of Ag, Cu, and Ni by rainbow trout (Oncorhynchus mykiss). Aquatic Toxicology 180: 236-246. 2016. Costello DM, Hammerschmidt CR, Burton GA. Nickel partitioning and toxicity in sediment during aging: Variation in toxicity related to stability of metal partitioning.

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Risk Characterisation - Metals Toolbox

Risk Characterisation. Risk is the ‘probability of an adverse effect on man or the environment occurring as a result of a given exposure to a chemical or mixture’ (Van Leeuwen and Vermeire, 2007). A hazard only becomes a risk if exposure exceeds a safe threshold value. Hazard identification and exposure determination have been discussed in previous sections

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Frontiers | Distribution Characteristics and Risk ...

Among them, the risk quotient (RQ) is the most feasible method for the risk characterization of pollutants in environment and has been used to evaluate the risk level of Hg in sediment (Du et al., 2015). Based on the Hg concentrations in Taihu Lake sediment and the SQC of Hg derived in this study, the RQ method was used to evaluate the ...

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Risk Assessment

Risk Characterization The last and final step in the risk assessment process is putting all of the information gathered from the other steps together to determine the actual risk of exposure to a specific toxic substance. This step relies on the expertise of

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Risk assessment of trace metals in Mefou River sediments ...

This study focuses on risk assessment of Cr, V, Ni, Co, Pb, Cu, and Zn in the Mefou River sediments located at Yaoundé, West-Africa. Sediment samples were collected from five stations in the downstream of the Mefou River, which drains the urban area of Yaoundé between latitudes 3°30' and 3°58' North and longitudes 11°20' and 11°40' East.

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Nickel Phase Partitioning and Toxicity in Field-Deployed ...

Risk assessment for sediment associated heavy metals using sediment quality guidelines modified by sediment properties. Environmental Pollution 2021, 275 , 115844. ... Preparation and characterization of nickel-spiked freshwater sediments for toxicity tests: Toward more environmentally realistic nickel partitioning. ...

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Sediment and Tissue - Eurofins USA

Dec 01, 2021 · Compounds present in sediment may begin to affect benthic organisms at concentrations often lower than conventional analytical methods can quantify. Sediments frequently have a high moisture content (or low percent solids content), which ultimately affect the ability to achieve the low reporting limits required for ecological risk characterization.

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Application of ecological risk indicators for the ...

The present research investigates the partitioning of six selected toxic metals (Ni, Cr, Pb, Zn, Cu, and As) in eight sediment samples; half of them were collected from Elefsis Gulf, and the other half were taken from Koumoundourou Lake, Athens, Greece. Each one of them was treated by applying Tessier's five-step sequential extraction procedure.

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(PDF) Risk characterization of contaminants in Passaic ...

RISK CHARACTERIZATION OF CONTAMI NANTS IN PAS SAIC RIVER SEDIMENTS, NEW JERSEY . Victor Onwue me and Huan F eng* ... Nickel in Sediments. Environmental Science and . Technology 26(1):96-101.

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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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Application of ecological risk indicators for the ...

The present research investigates the partitioning of six selected toxic metals (Ni, Cr, Pb, Zn, Cu, and As) in eight sediment samples; half of them were collected from Elefsis Gulf, and the other half were taken from Koumoundourou Lake, Athens, Greece. Each one of them was treated by applying Tessier's five-step sequential extraction procedure.

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Risk assessment of trace metals in Mefou River sediments ...

This study focuses on risk assessment of Cr, V, Ni, Co, Pb, Cu, and Zn in the Mefou River sediments located at Yaoundé, West-Africa. Sediment samples were collected from five stations in the downstream of the Mefou River, which drains the urban area of Yaoundé between latitudes 3°30' and 3°58' North and longitudes 11°20' and 11°40' East.

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A comprehensive analysis on source-specific ecological ...

Characterization and source apportionment of heavy metals in the sediments of Lake Tai (China) and its surrounding soils ... Heavy metal contamination and ecological risk assessments in the sediments and zoobenthos of selected mangrove ecosystems, South China. Catena, 119 (2014) ... chromium and nickel in Kandela candel ...

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Fractional distribution and risk assessment of heavy ...

Feb 24, 2016 · Bohai Sea is one of the most intensively exploited region in the world and its environment has been severely impacted by the extensive human activities. The Yellow River is the most important river which connects with the Bohai Sea. Therefore, this study focused on analyzing heavy metals (HMs) in 21 surface sediment samples collected from the Yellow

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Guidance for the Use and Application of Sediment Quality ...

harm sediment-dwelling organisms, wildlife, or human health (also called chemicals of concern). Contaminated sediment – Sediment containing chemical substances at concentrations that pose a known or suspected threat to environmental or human health. Dredging – Removal of material from the bottom of a water body by excavation or similar

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Environmental risk characterization and ecological process ...

Environmental risk characterization and ecological process determination of bacterial antibiotic resistome in lake sediments Environ Int. 2020 Dec 29;147:106345. doi: 10.1016/j.envint.2020.106345. Online ahead of print. Authors Haiyang Chen 1 ...

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Environmental Risk Assessment and Risk Management ...

The field visits where conducted in order to carry out environmental characterization and risk assessment. The mine tailings’ soil and stream sediments samples were collected at random in the study area (Figure 1). The procedure of Nelushi et al. (2013) was followed in sample

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Heavy metal contamination in surface sediments from lakes ...

Feb 07, 2021 · Due to rapid urbanization, industrialization, agricultural development, and mining activities, soil heavy metal pollution has become a severe issue in China. To explore the regional heavy metal ecological risk of lake sediment and surrounding topsoil, we analyzed 237 lakes, with 1797 lake sediment sampling points and 1164 surrounding topsoil sampling points.

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Development of a bioavailability-based risk assessment ...

Jan 15, 2016 · 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 for ...

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Regional Screening Levels (RSLs) - User's Guide | US EPA

Dec 06, 2021 · The risk and hazard index values presented on this site are chemical-specific values for individual contaminants in air, water, soil, and fish that may warrant further investigation or site cleanup. This portion of the risk assessment process is generally referred to as "Risk Characterization".

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Biological and Chemical Characterization of Metal ...

Dec 04, 2007 · We studied the bioavailability and toxicity of copper, zinc, arsenic, cadmium, and lead in sediments from Lake Roosevelt (LR), a reservoir on the Columbia River in Washington, USA that receives inputs of metals from an upstream smelter facility. We characterized chronic sediment toxicity, metal bioaccumulation, and metal concentrations in sediment and pore

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Geochemical, Sedimentological and Mineralogical ...

Jul 28, 2016 · A multidisciplinary study of the sedimentology, geochemistry and mineralogy has been conducted to understand the linkage between marsh and alluvial sediments and also their potential sources in Eynak marsh, North of Iran. The influence of the upstream potential sources on recent sediment geochemistry has been discussed based on geochemical,

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