Essays about: "Inorganic Sediment"

Showing result 6 - 10 of 17 essays containing the words Inorganic Sediment.

  1. 6. Concentrations and riverine massflows of geothermal arsenic. : Case study: Jemez River, NM, USA

    University essay from Stockholms universitet/Institutionen för naturgeografi

    Author : Lina Hansson; [2016]
    Keywords : arsenic; speciation; river discharge; fault;

    Abstract : Geothermal arsenic (As) and its inorganic species transformation in river systems are of global concern, since As has a potential negative impact on human health and ecosystems. Periods of increased precipitation may change As concentrations and As partitioning in streams, due to elevated water tables, increased runoff generation, dilution, and interactions with sediment. READ MORE

  3. 7. Oxygen and its impact on nitrification rates in aquatic sediments

    University essay from Lunds universitet/Geologiska institutionen

    Author : Tina Liesirova; [2016]
    Keywords : normoxic; hypoxic; eutrophication; nitrification; Roskilde Fjord; Earth and Environmental Sciences;

    Abstract : Eutrofiering det oönskade fenomenet av hög näringstillförsel i ett akvatiskt system, är för det mesta ett resultat av mänsklig påverkan: industriellt och urbant avloppsvatten, avrinning av gödningsmedel från odlad mark, och förbränning av fossila bränslen. Studien av de främsta faktorerna som bidrar till eutrofiering (t. ex. READ MORE

  4. 8. Metylkvicksilvers toxicitet

    University essay from SLU/Dept. of Biomedical Sciences and Veterinary Public Health

    Author : Harriet Noring; [2015]
    Keywords : metylkvicksilver; toxicitet; verkningsmekanism; behandling; methylmercury; toxicity; mechanism of action; treatment;

    Abstract : Metylkvicksilver (MeHg) är en form av tungmetallen kvicksilver och det är den form som är farligast för djur och människor. Det beror på dess organiska egenskaper som gör att det biomagnifieras genom födokedjan, effektivt absorberas från föda, distribueras till många organ, koncentreras i levande organismer, passerar blod-hjärnbarriären och ackumuleras, samt orsakar skador även vid låga doser. READ MORE

  5. 9. Carbon-based nutrient cycling in the Baltic Sea - Analysis of twelve basins using three-dimensional flow dynamics.

    University essay from KTH/Mark- och vattenteknik

    Author : Guillaume Vigouroux; [2014]
    Keywords : Eutrophication; Baltic Sea; Hydrodynamics; Nutrients; Modelling; Sediments; Ecosystem;

    Abstract : Eutrophication is a major problem in the Baltic Sea and is the result mainly of the increase of the anthropogenic nutrient loading. Thus, the links among water quality, sediments, and eutrophication have to be understood in order to predict the consequences of our actions and of the climate change on the Baltic Sea. READ MORE

  6. 10. Observation of methanogenesis and potential iron-dependent anaerobic oxidation of methane in old lake sediments, a study of two boreal forest lakes.

    University essay from Institutionen för biologisk grundutbildning

    Author : Elias Broman; [2013]
    Keywords : Limnology; Lake; Sediment; Methane; Anaerobic oxidation;

    Abstract : Organic and inorganic carbon can enter inland waters in different ways, and often a considerable amount of this carbon is coming from terrestrial input. Once this terrestrial carbon enters a lake, the carbon may be degraded, mineralized or eventually buried in the sediment. READ MORE