Blar i Institutt for kjemi på emneord "Environmental Toxicology and Chemistry, Environmental Chemistry"
Viser treff 1-20 av 24
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Atmospheric mercury speciation and aerosol properties at Ny-Ålesund
(Master thesis, 2015)Gaseous elemental mercury (GEM), reactive gaseous mercury (RGM) and particulate bound mercury (PHg) measurements at Zeppelin station, Ny-Ålesund, Svalbard were analyzed for the correlations with meteorological conditions ... -
Combined Effects of Silver Nanoparticles and 17α-ethinyl estradiol on Turbot (Scophthalmus maximus)
(Master thesis, 2015)Due to their antimicrobial properties silver nanoparticles are one of the most used nanomaterials in the commercially available products nowadays. The exponential increase in production of nanomaterials raises concerns ... -
Determination of Fe(II) and Fe(III) in Synechococcus sp. PCC 7002 culture
(Master thesis, 2018)Results presented in this thesis show Fe(II) detection in culture with goethite in addition to an increase of dFe concentration in goethite culture which have implications for a biogenic reduction mechanism in Synechococcus ... -
Determination of Poly Chlorinated biphenyls in sediment of Trondheim fjord (Norway) and Lake Tana (Ethiopia) using pressurized liquid extraction (PLE) and Gas Chromatography - Mass Spectrometry (GC-MS)
(Master thesis, 2017)The presence of polychlorinated biphenyls (PCBs) in the environment is of great concern, as they are compounds that are hazardous to the environment and human health. Environmental investigations of PCBs can be challenging ... -
Development of a sampler system for pollutants in contaminated marine sediments - Design of a sampler component and development of sampling routine in the marine sediments of Trondheim harbour
(Master thesis, 2018)A gravitational core sampler have been converted into a passive sampler by the design and manufactoring of a sampler component able to attach to the existing sampler system. Field tests were done by use of R/V Gunnerus in ... -
Experimental and modeling study of subsea releases of oil and gas. - Oil behavior and effects in a cold or Arctic marine environment as a function of release conditions, oil chemistry and dispersant injection.
(Master thesis, 2015)Abstract With oil exploration going into deeper waters and more extreme environments, more detailed knowledge is needed about the fate of oil in case of a release. This thesis focuses on initial droplet formation, secondary ... -
Experimental weathering of microplastic under simulated environmental conditions - Method development and characterization of pristine, photodegraded and mechanically weathered microplastic
(Master thesis, 2018)The aim of this master thesis was to investigate the physico-chemical changes of microplastic (MP) weathered under simulated environmental conditions: floating on the ocean surface and in the intertidal zone. Polyethylene ... -
Influence of siderophore-iron complexation on the growth of the diatom Skeletonema costatum: a mass spectroscopy approach
(Master thesis, 2016)The growth of the diatom Skeletonema costatum was monitored using in vivo fluorescence under concentration gradients of desferrioxamine B (DFB) and enterobactin to test the siderophores effect on iron bioavailability. ... -
Iron Acquisition in Cynobacteria Synechococcus sp. PCC 7002 Culture
(Master thesis, 2018)Iron is an essential micronutrient for the growth and health of phytoplankton and low overall iron concentrations in the High Nutrient Low Chlorophyll (HNLC) zones in the ocean have been reported. Cyanobacteria is one of ... -
Mapping and study of contamination in sediment and water column in the area used for snow dumping in the Trondheimsfjord.
(Master thesis, 2016)I Trondheim dumpes det meste av overskuddssnøen fra byen og omegn direkte i fjorden fra kaier i havna. Snø tar opp forurensninger fra kilder i byen, og vil dermed være forurenset med stoffer som bla. tungmetaller og organiske ... -
Mapping and study of contamination in sediment and water column in the area used for snow dumping in the Trondheimsfjord.
(Master thesis, 2016)I Trondheim dumpes det meste av overskuddssnøen fra byen og omegn direkte i fjorden fra kaier i havna. Snø tar opp forurensninger fra kilder i byen, og vil dermed være forurenset med stoffer som bla. tungmetaller og organiske ... -
Mapping and Study of Possible Chemical Contamination from Military Material Found in Dumping Site in the Trondheimsfjord
(Master thesis, 2016)This thesis has revolved around a dumping site at approximately 600 m depth in the Trondheimsfjord containing military material from the Second World War. Both water and sediment samples have been taken in and around the ... -
Mercury speciation and aerosol properties at Svalbard
(Master thesis, 2017)In this study the relationship between atmospheric mercury (Hg) species and the relationship between aerosol size and particulate mercury (PHg) will be presented. This study is based on empirical data measured from Zeppelin ... -
Mobility of Elements at the Sediment Water Interface in a Simulated Sub-Seabed CO2 Seepage Site
(Master thesis, 2018)Carbon capture and storage (CCS) is an important technology for the mitigation of global warming. However, prior research has indicated that CO2 escape through marine sediment can lead to the acidification of sediment pore ... -
Oil spill forensics - Identification of possible sources for oil spills found along the coastline of mid-Norway - An experimental study combining GC-MS analysis and multivariate statistics.
(Master thesis, 2016)This thesis aims to characterize 112 weathered oil samples collected on shore, at 18 islands, along the coastline of Mid-Norway during a time period of 2011-2015. Emphasis have been made on characterizing samples by three ... -
Oil spill forensics - Identification of Sources for Illegal Oil Spills. A New Approach Combining Multivariate Statistics and Gas Chromatography and Mass-Spectrometry (GC-MS)
(Master thesis, 2016)The CEN/TR 15522-2:2012 standard is most widely used in Europe for oil spill fingerprinting purposes, which is based on comparison of specific source biomarkers by GC MS. This thesis was mainly aimed at establishing and ... -
Preliminary Non-Targeted Screening of Organic Compounds linked with Elemental Analysis of Marine Sediments near Salmon Farms
(Master thesis, 2018)Sediment samples from the vicinity of two active salmon farms in central west Norway (Smøla, Møre og Romsdal) have been analyzed for elements, organic compounds and physio-chemical parameters. Elements have been analyzed ... -
Series of studies to investigate different methods for rinsing runoff water from roads
(Master thesis, 2018)Runoff from roads contains a wide range of pollutants such as inorganic compounds and organic compounds which can be dissolved or particle-bound. The dissolved contaminates are often more mobile and therefore also bioavailable ... -
Study of Long Range Transported Pollutants in Arctic Soil
(Master thesis, 2017)In this master thesis, levels of Polychlorinated Biphenyls (PCBs), total organic carbon (TOC) and potentially long range transported inorganic elements (Cd, Hg and Pb) in surface soil and vegetation have been studied for ... -
Study of mercury and selected trace elements in soil in the Norwegian Arctic, Svalbard
(Master thesis, 2016)In this study elemental composition and soil organic matter (SOM) content of surface and mineral soils in Svalbard are presented. The aim is to provide new data on soils in the Arctic and to gain more knowledge about the ...