Sökning: "sediment accumulation"

Visar resultat 1 - 5 av 46 uppsatser innehållade orden sediment accumulation.

  1. 1. Fytoremediering med flytande våtmark: En fallstudie av metallförorenade vattendrag.

    Kandidat-uppsats, Linnéuniversitetet/Institutionen för biologi och miljö (BOM)

    Författare :Johanna Junback; [2023]
    Nyckelord :Fytoremediering; flytande våtmark; FTW; metaller; glastillverkning; förorenade vatten; Carex nigra; Lysimachia vulgaris;

    Sammanfattning : Tungmetallförorenat vatten har ansetts vara ett av de största globala miljöproblemen och att hitta en hållbar miljövänlig lösning är en stor utmaning. Många glasbruk i södra Sverige fortsätter att vara källor för metallföroreningar. LÄS MER

  3. 2. Mercury accumulation in lake sediments on different time scales – the influence of algal primary production

    Master-uppsats, Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Författare :Anne Rebotzke; [2023]
    Nyckelord :mercury; lake sediment; primary productivity; algal scavenging; biogenic silica; diatom proxy; chlorophyll-a; organic matter;

    Sammanfattning : The aim of this work is to test the proposed approach of algal scavenging as a driver of sediment mercury (Hg) on different time scales and to gain a better understanding of the mechanisms of Hg accumulation in lake sediments. A 3000-year sediment record from Nylandssjön in northern Sweden was analysed for this purpose, as well as a 20-year sediment record from the seasonal sediment traps of this lake. LÄS MER

  4. 3. Longshore Sediment Transport Along the Coast of Ystad Municipality

    Master-uppsats, Lunds universitet/Avdelningen för Teknisk vattenresurslära

    Författare :Isa Berin; Johanna Jacobson Löwdin; [2022]
    Nyckelord :Coastal erosion; sediment dynamics; longshore sediment transport; CERC; shoreline change; Technology and Engineering;

    Sammanfattning : The coast of Ystad municipality has historically been subject to erosion, leading to the loss of recreational areas and near-beach structures, consequently resulting in the implementation of mitigating measures. With the ongoing climate change, erosion is expected to continue. LÄS MER

  5. 4. Investigating the Fluxes of Radio-Cesium (137Cs) in Sweden : Investigating the Fluxes of Radio-Cesium (137Cs) in Sweden

    Magister-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Hammad Masood; [2022]
    Nyckelord :Chernobyl incident; Sweden; radio-cesium; contamination; terrestrial environment; quatic environment;

    Sammanfattning : Technological advancement and the quest for power have gradually contaminated our environment, as industrialization, agriculture, and nuclear activities progressed. In the year 1986, a terrible nuclear incident occurred in Ukraine, in which the nuclear reactor exploded. LÄS MER

  7. 5. Variations in depositional environments of the Paleogene Firkanten Formation across Adventdalen, from Operafjellet to Breinosa

    Master-uppsats, Göteborgs universitet/Institutionen för geovetenskaper

    Författare :Anna Stella Guðmundsdóttir; [2021-03-18]
    Nyckelord :;

    Sammanfattning : The lowermost Paleogene clastic infill of the Central Spitsbergen Tertiary Basin, the coal bearing Firkanten Formation, has been the subject of study for researchers in the past but little focus has been on the northeast edge of the basin until now. Due to the economic potential of the coal seams in the formation, the Norwegian mining company, Store Norske Spitsbergen Grubekompani (SNSG), has for several years conducted core drilling in key locations in basin, and for decades, they have given an access to their core material to researchers. LÄS MER