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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 11 of 11 for “"Cadmium concentrations"”.
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Heavy metal concentrations, aging techniques and population characteristics of mink in Virginia: with a review of the literature on delayed implantation in the mink
Lead, cadmium, zinc and copper concentrations were determined in bone, kidney and liver samples of mink (Mustela vison) trapped during 1981-83 in Virginia. Ages were determined to obtain population information. The literature on delayed implantation in mink was reviewed. Lead and cadmium …
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Biomonitoraggio umano: effetti sub-clinici da Piombo e Cadmio sull’accrescimento
… The environmental variables are hair lead and cadmium concentrations (PbH, CdH), proxy of socioeconomic status (SES), proxy of nutritional status as upper arm muscle area (UMA), upper arm fat area (UFA), body mass index (BMI) and Σ 5 skinfolds. In order to detect possible associations between …
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Flux of cadmium through a laboratory food chain (media-algae-mussel) and its effects
… pollution of the aquatic environment by cadmium is a potentially severe problem and techniques are needed to document the effect of the metal. To investigate the flux of this metal through a laboratory food chain, algae were grown in various cadmium concentrations for subsequent use as …
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The occurrence and toxicology of heavy metals in Chesapeake Bay waterfowl
… waterfowl and to determine effects of chronic cadmium and lead ingestion on energy metabolism in waterfowl. Concentrations of cadmium, lead, copper, and zinc were measured in 774 livers, 266 kidneys, and 271 ulnar bones from 15 species of ducks obtained from the Chesapeake Bay region. Liver and …
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Bioaugmentation with metal-resistance microorganisms in the remediation of metal and organic contaminated soils
… to compare the microbial community response to cadmium exposure between metal-contaminated and uncontaminated soils. This study found that while cadmium adversely affected the numbers of culturable microorganisms in all soils, cadmium-resistant isolates were found in each soil, regardless of …
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Understanding the Influence of Zinc on Grain Cadmium Accumulation and Bioaccessibility in Rice
<p><strong>The effect of cadmium and zinc on mineral concentrations in three cultivars of rice</strong></p> <p>Interactions between the essential mineral zinc (Zn) and the toxic heavy metal cadmium (Cd) play an important role in regulating transport of both minerals to rice grains. Understanding …
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Switchgrass tolerance to cadmium: uptake and translocation
… to determine the interaction of (1) cultivar and cadmium (Cd)application, (2) soil pH and Cd application, and (3) soil moisture and Cd application on biomass accumulation and Cd allocation of switchgrass. In the first experiment, 'Alamo', 'Blackweir, 'Cave-in-Rock', and 'Trailblazer' switchgrass …
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Cadmium and lead concentrations in livers and kidneys of cattle slaughtered at Grootfontein abattoir in Namibia
… aim of this study was to determine the levels of cadmium (Cd) and lead (Pb) in livers and kidneys of cattle slaughtered at Grootfontein abattoir in Namibia. The study design was based on the epidemiological principles to detect a single animal whose kidneys or liver contained Cd or Pb residues. …
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ECOLOGICAL AND SOCIOLOGICAL IMPLICATIONS OF TISZA RIVER MINE TAILINGS POLLUTION AND EFFECT OF CHRONIC CADMIUM EXPOSURE ON FISH PHYSIOLOGY
… anthropogenic activities have elevated metal concentrations in river sediments above what would be expected naturally. One of the primary anthropogenic sources of metals in freshwater is contamination by mine tailings, a toxic slurry of waste rock and chemicals left over after ore minerals or …
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Sediment geochemistry - a case study approach.
… watercourses in Germany. The metal/metalloid concentrations showed very different distribution patterns. Mobile elements like zinc showed a very homogenous and predictable pattern, while elements with low mobility stick to the sediment and do not migrate much, leading to areas with different …
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Elucidating the Role of Toxin-Induced Microbial Stress Responses in Biological Wastewater Treatment Process Upset
… exposed to perturbations of chemicals at all concentrations tested (cadmium, pentachlorophenol, and acetone) or heat stress. As total cadmium concentrations increased above 5 mg/L, there was a significant and consistent increase in effluent volatile suspended solids concentrations from …