Sökning: "toxic metals"

Visar resultat 1 - 5 av 94 avhandlingar innehållade orden toxic metals.

  1. 1. Metals take flight : Transport and effects across ecosystems

    Författare :Johan Lidman; A. M. M. Berglund; Micael Jonsson; Christian Bigler; Brendan Mckie; Umeå universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Metals; aquatic subsidies; passerines; aquatic insects; environmental science; miljövetenskap; ekotoxikologi; Ecotoxicology;

    Sammanfattning : Metal contamination can have severe toxic effects in the ecosystems, resulting in loss of biodiversity, reduced abundance of organisms, and loss of ecosystem services. Traditionally, aquatic ecosystems have been regarded as a sink of metal contamination. LÄS MER

  2. 2. Toxic metals in pregnancy : distribution and effects on placental function in mice, and toxicity to embryonic cells in vitro : arsenic, cadmium, chromium, lead, and mercury

    Författare :Bengt R. G. Danielsson; Uppsala universitet; []
    Nyckelord :MEDICINE; MEDICIN;

    Sammanfattning : .... LÄS MER

  3. 3. Metals in MSWI fly ash - problems or opportunities?

    Författare :Karin Karlfeldt Fedje; Chalmers University of Technology; []
    Nyckelord :HNO3; water; NH3NO4; MSW ash; pH; metals; solvent extraction; speciation; Cu; leaching;

    Sammanfattning : Incineration of municipal solid waste is a commonly used management method to take care of our waste. However, the residues produced are a problem. They often contain large amounts of potentially toxic metal compounds and soluble salts, which can cause harm to the environment and human health if released from the ash. LÄS MER

  4. 4. Trace metals in the atmosphere : the wet deposition of trace metals : the selenium cycle

    Författare :Howard B. Ross; Stockholms universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Cd, Cu, Fe, Mn, Pb and Zn concentrations in wet deposition have been monitored in Sweden since the autumn of 1983. Concentrations of these elements are highest in southern Sweden and decrease northward. Examination of enrichment factors, relative to crustal material, indicate that the major source of Cd, Cu, Pb and Zn is anthropogenic emissions. LÄS MER

  5. 5. Bioremediation of Toxic Metals for Protecting Human Health and the Ecosystem

    Författare :Aminur Rahman; Abul Mandal; Jana Jass; Björn Olsson; Pawel Kaszycki; Örebro universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Heavy Metals; Pollution; Accumulation; Remediation; Human Health; Bacteria; Genome Sequencing; de novo Assembly; Gene Prediction; Biology; Biologi; Bioteknik; Biotechnology;

    Sammanfattning : Heavy metal pollutants, discharged into the ecosystem as waste by anthropogenic activities, contaminate drinking water for millions of people and animals in many regions of the world. Long term exposure to these metals, leads to several lethal diseases like cancer, keratosis, gangrene, diabetes, cardio- vascular disorders, etc. LÄS MER