Search for dissertations about: "buried contaminants"

Found 3 swedish dissertations containing the words buried contaminants.

  2. 1. Fate and transport of POPs in the aquatic environment : with focus on contaminated sediments

    Author : Sarah Josefsson; Karin Wiberg; Mats Tysklind; Kjell Leonardsson; Jonas S Gunnarsson; Jussi Kukkonen; Umeå universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; bioturbation; bioirrigation; bioaccumulation; secondary sources; buried contaminants; sediment remediation; active capping; thin-layer capping; Marenzelleria spp.; Baltic Sea; polychlorinated dibenzo-p-dioxins; polychlorinated dibenzofurans; polychlorinated biphenyls; hexachlorobenzene; octachloro¬styrene; polybrominated diphenyl ethers; PCDD Fs; PCBs; HCB; OCS; PBDEs; water sampling; passive sampling; particulate fraction; freely dissolved; apparently dissolved; colloid; organic carbon; activated carbon; lignin; sediment-to-water flux; spring bloom; Environmental chemistry; Miljökemi; Persistent organic compounds; Persistenta organiska föreningar; Environmental Science; miljövetenskap;

    Abstract : Persistent organic pollutants (POPs) are hydrophobic substances that readily sorb to organic matter in particles and colloids instead of being freely dissolved in the water phase. This sorption affects the bio­availability and environmental transport of the POPs. READ MORE

  4. 2. Fate of contaminants in Baltic Sea sediment ecosystems : the role of bioturbation

    Author : Jenny E Hedman; Jonas Gunnarsson; Nils Kautsky; Valery Forbes; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Toxicology; Toxikologi; Marine Ecotoxicology; marin ekotoxikologi;

    Abstract : Aquatic sediments are of major importance for the cycling of environmental pollutants, acting as both sinks and secondary sources of contaminants to the ecosystem. Sediment-living organisms can affect the fate and transport of contaminants through activities like feeding and burrowing, collectively called bioturbation. READ MORE

  5. 3. A geochemical study of the Kafue River, Zambia

    Author : Ulf Pettersson; Luleå tekniska universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Applied Geology; Tillämpad geologi;

    Abstract : Hydrogeochemical processes and the impact from mining activities within the Kafue River basin, Zambia, have been studied during an annual cycle (March 1995-April 1996). Samples of dissolved (0.45mm) solids have been collected on weekly, once every two weeks and monthly bases at several locations along the river. READ MORE