Spatial survey of trace metal contaminants in the sediments of the Elizabeth River, Virginia

Conrad, Christine F.; Chisholm-Brause, Catherine J.

doi:10.1016/j.marpolbul.2004.02.019

Cited by 45 publications

(16 citation statements)

References 16 publications

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“…Correlation coefficients between total heavy metals and f oc were between 0.04 and 0.36, while those between total heavy metals and sand% were between 0.10 and 0.39. Results in the present study are quite different from other studies, which reported significant correlations between sediment concentrations and organic matter contents or grain size (Jain and Sharma 2001;Conrad and Chisholm-Brause 2004). Organic matter can sorb heavy metals from solution and a close relationship between them might be expected in the sediments.…”

Section: Resultscontrasting

confidence: 99%

Heavy Metals in the Surface Sediments in Lanzhou Reach of Yellow River, China

Liu

et al. 2008

Bull Environ Contam Toxicol

112

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The heavy metal pollution and their fractionations in the surface sediments of Yellow River in Lanzhou Reach was monitored for arsenic (As), lead (Pb), Zinc (Zn), chromium (Cr), copper (Cu) and manganese (Mn) with Inductively Coupled Plasma-Atomic Emission Spectrometry (ICP-AES). The mean sediment concentrations (in microg/g dry weight) ranged from 13.68-48.11 (As), 26.39-77.66 (Pb), 89.80-201.88 (Zn), 41.49-128.30 (Cr), 29.72-102.22 (Cu), and 773.23-1459.69 (Mn). Spatial distribution showed that each heavy metal concentration remained almost constant in this reach. Correlation coefficients indicated that metals were not strongly associated with sediment sand content or organic carbon content (f(oc)). Labile fractions (exchangeable + carbonate + Fe-Mn oxide) had no significant correlations with sand content or f(oc), either. Results from the present study are useful for understanding heavy metal distributions in a torrential river sediment environment.

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Section: Resultscontrasting

confidence: 99%

Heavy Metals in the Surface Sediments in Lanzhou Reach of Yellow River, China

Liu

et al. 2008

Bull Environ Contam Toxicol

112

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“…After [1] species-area relationshipspecies-specific sensitivity Quantitative and qualitative features of response to the action(s) of a potentially toxic substance that are characteristic for a particular species of living organism. [1] specific action concept Assumption made in radiotracer usage concerning specificity of action of a radionuclide used to trace or quantify the movement of a stable nuclide (e.g., 14 C for stable C), implying that the radionuclide behaves identically in chemical and biological processes to its nonradioactive analog (e.g., stable C).…”

Section: Mesocosmmentioning

confidence: 99%

Glossary of terms used in ecotoxicology (IUPAC Recommendations 2009)

Nordberg

Templeton

Andersen

et al. 2009

Pure and Applied Chemistry

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Republication or reproduction of this report or its storage and/or dissemination by electronic means is permitted without the Glossary of terms used in ecotoxicology (IUPAC Recommendations 2009)Abstract: The objective of the "Glossary of terms used in ecotoxicology" is to give clear definitions for those who contribute to studies relevant to ecotoxicology but are not themselves ecotoxicologists. This objective applies especially to chemists who need to understand the ecotoxicological literature without recourse to a multiplicity of dictionaries. The glossary includes terms related to chemical speciation in the environment, sampling, monitoring, and environmental analysis, as well as to adverse ecological effects of chemicals, ecological biomarkers, and the environmental distribution of chemicals. The dictionary consists of about 1139 terms. The authors hope that among the groups who will find this glossary helpful, in addition to chemists, are pharmacologists, toxicologists, ecotoxicologists, risk assessors, regulators, medical practitioners, and regulatory authorities. In particular, the glossary should facilitate the use of chemistry in relation to environmental risk assessment.

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“…To determine the extent of metal pollution in sediments from rivers, it is important to subtract existing metal concentrations from natural background levels in order to derive the total enrichment caused by anthropogenic influences (Aloupi and Angelidis 2001;Conrad et al 2004;Feng et al 2004). For most estuarine systems, trace metal concentrations from natural sources could be significantly affecting data interpretation regarding man-made inputs (Windom et al 1989).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of metal contamination in sediments from north of Morocco: geochemical and statistical approaches

Rodríguez-Barroso

Benhamou

Moumni

et al. 2008

Environ Monit Assess

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Concentrations of Fe, Mn, Cr, Cu, Ni, Pb, Zn, Cd and Hg were evaluated in surface sediments of two rivers from north of Morocco, known as Souani and Mghogha rivers. Significantly higher concentrations in mg kg(-1) dry weight (dw) of Mn (747.6 vs. 392.9), Cr (86.4 vs. 56.3), Zn (299.5 vs. 138.5) were found in sediment samples from Mghogha when compared with Souani river. Average concentrations of Cd and Hg in several sediment samples from both rivers were above the effect range median that predicts toxic effects to aquatic organisms. The calculation of enrichment factors showed that Mn, Cr, Cu and Ni were depleted, whereas Pb and Hg were enriched. The results of geoaccumulation index revealed that sediments of both rivers were unpolluted with most of the metals and moderately contaminated with Fe and Hg. Some of elevated concentrations of Hg, principally in Mghogha River, were due to anthropogenic sources including the direct discharges of industrial zone.

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Spatial survey of trace metal contaminants in the sediments of the Elizabeth River, Virginia

Cited by 45 publications

References 16 publications

Heavy Metals in the Surface Sediments in Lanzhou Reach of Yellow River, China

Heavy Metals in the Surface Sediments in Lanzhou Reach of Yellow River, China

Glossary of terms used in ecotoxicology (IUPAC Recommendations 2009)

Evaluation of metal contamination in sediments from north of Morocco: geochemical and statistical approaches

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