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(Master thesis / Masteroppgave, 2023)
(Master thesis / Masteroppgave, 2023)
Det marine miljø er utsatt for mange miljøgifter som slippes ut fra industrien, via luftforurensing og dårlig avfallshåndtering i stort sett alle land. Comet assay er en anerkjent analysemetode som er mye brukt til å ...
Combined effect of predation risk and copper exposure in five species of coastal copepods Restricted Access
(Master thesis / Masteroppgave, 2023)
In nature, organisms are continually exposed to multiple stressors and contaminants. However, most toxicity studies are performed in controlled laboratory settings with a single contaminant and do not account for interactions ...
Cytotoxic and inflammatory effects of HDPE microplastics and fungal particle mixtures Restricted Access
(Master thesis / Masteroppgave, 2023)
Micro- and nanoplastics (MNPs) have been highlighted as a cause of concern to the environment and to human health. Humans are exposed to particles of MNPs through ingestion, inhalation, and dermal adsorption, potentially ...
(Master thesis / Masteroppgave, 2023)
Neurotoxic chemicals have the potential to cause devastating effects on marine organisms and ecosystems. The continued synthesis of new chemicals for commercial use highlights the need for improved efforts in monitoring ...
A temporal assessment of methylmercury in the nesting Herring gulls (Larus argentatus) of Oslo Restricted Access
(Master thesis / Masteroppgave, 2023)
(Master thesis / Masteroppgave, 2022)
Resin-based biomaterials are commonly used materials during dental treatments. 2-hydroxyethyl methacrylate (HEMA) and triethylene glycol dimethacrylate (TEGDMA) are the major exposures during and after treatment from these ...
Effects of aluminium-production derived pollutants on nuclear abnormalities in blue mussels (Mytilus spp.) Restricted Access
(Master thesis / Masteroppgave, 2022)
(Master thesis / Masteroppgave, 2022)
Related species have been assumed to have a similar sensitivity to exposure to environmental pollution. Atlantic cod (Gadus morhua) is an important commercial fish and a key-species in monitoring. With the recent decline ...
Effects of clothianidin and flupyradifurone on bumblebee colony development at ambient temperature Restricted Access
(Master thesis / Masteroppgave, 2022)
Neonicotinoids has raised serious concerns regarding their adverse effects on non- target organisms. These concerns led to the ban of the three most common neonicotinoids from outdoor use in the EU in 2018. A replacement ...
Effect of historic aquaculture activity on copepod sensitivity to the combined exposure of copper and predation risk Restricted Access
(Master thesis / Masteroppgave, 2022)
Marine ecosystems are complex ecosystems in which organisms consciously face multiple stressors. Copepods, the most abundant zooplankton group has an integral role in the marine food web. They are exposed to multiple ...
Effect of Terrestrial and Aquatic Dissolved Organic Matter on Uptake Rates of Teflubenzuron in the Ascidian Ciona intestinalis Restricted Access
(Master thesis / Masteroppgave, 2022)
In recent years, a darkening of aquatic environments has been observed and traced back to an increased input of terrestrial dissolved organic matter (tDOM). This is causing changes to light and nutrient dynamics, and shifts ...
(Master thesis / Masteroppgave, 2022)
Climate change is increasing the earth’s temperature and acidifying its ocean. These changes are expected to be more severe in the Arctic region. Higher temperatures in the Arctic Ocean will reduce its sea ice and open it ...
DNA-skade i blodceller fra torsk (Gadus morhua) og hvitting (Merlangius merlangus) fra to områder Restricted Access
(Master thesis / Masteroppgave, 2022)
Responses to environmental stressors in marine benthic foraminifera Restricted Access
(Master thesis / Masteroppgave, 2022)
(Master thesis / Masteroppgave, 2022)
(Master thesis / Masteroppgave, 2022)
PFASs include thousands of persistent chemicals which demonstrate the ability to bioaccumulate. PFOS, followed by PFOA, are the dominant PFASs in human samples. In the pre- and postnatal period many developmental windows ...
(Master thesis / Masteroppgave, 2021)
We exposed the microbiome derived from two species of cod, from the outer and inner Oslo fjord to extracts derived from car tire rubber. To determine toxicity we look at growth rate and bacterial diversity as endpoints. ...
Effects of Imidacloprid on the Survival and Recruitment of Folsomia quadrioculata in Soil Microcosms
(Master thesis / Masteroppgave, 2021)
(Master thesis / Masteroppgave, 2021)
Pro-inflammatory potency of particulate matter derived from a road tunnel in comparison to stone particles and diesel exhaust particle Restricted Access
(Master thesis / Masteroppgave, 2021)
Abstract: Background Epidemiological studies, together with experimental studies, have shown a causal relationship between exposure to particulate matter (PM) and elevated morbidity and mortality of respiratory diseases. ...
Age sensitivity and effects in A/J APC Min/+ mice (Mus musculus) after exposure to Azoxymethane, a potent carcinogen. Restricted Access
(Master thesis / Masteroppgave, 2020)
Colon cancer (CRC) is one of the most common cancer types in Norway and the world. Coupled with a high mortality rate, the need for studies on CRC is of great importance. However, to study CRC, the need for suitable and ...
(Master thesis / Masteroppgave, 2020)
(Master thesis / Masteroppgave, 2020)
Monomeren 2-hydroksyetyl metacrylat (HEMA) er hovedkomponenten i mange resin-baserte biomaterialer brukt i tannbehandling. Lekkasje av upolymerisert HEMA etter ufullstendig herding medfører menneskelig eksponering. HEMA ...
(Master thesis / Masteroppgave, 2020)
Tobacco products, as well as many products used to aid in smoking cessation, contain nicotine. Most research on the cellular effects of nicotine has focused on receptor-mediated mechanisms. However, the reported lysosomotropic ...
Resin-based biomaterials – the effects of combined exposure to methacrylates and Silica nanoparticles Restricted Access
(Master thesis / Masteroppgave, 2020)
(Master thesis / Masteroppgave, 2020)
Polycyclic aromatic hydrocarbons (PAHs) are a group of chemical compounds found in urbane air, which have been suggested to contribute to pulmonary diseases by modulating pro inflammatory responses. The relative potency ...
Effekter av eksponering for bisfenol A på juvenil torsk (Gadus morhua) Restricted Access
(Master thesis / Masteroppgave, 2020)
(Master thesis / Masteroppgave, 2020)
Developing methods for the detection and characterisation of micro- and nanoplastic in haemolymph of marine filter-feeding mussels Restricted Access
(Master thesis / Masteroppgave, 2019)
(Master thesis / Masteroppgave, 2019)
(Master thesis / Masteroppgave, 2019)
(Master thesis / Masteroppgave, 2019)
(Master thesis / Masteroppgave, 2019)
(Master thesis / Masteroppgave, 2019)
The nanomaterial industry is currently expanding, driven by the diversity and versatility of applications in which they can be found. Nanomaterials (NMs) can have a variety of uses ranging from solar cells and pigments to ...
(Master thesis / Masteroppgave, 2019)
(Master thesis / Masteroppgave, 2019)
Two in vitro methods have been applied and tentatively optimized for the use with Atlantic cod (Gadus morhua), in order to gain more knowledge about responses for this ecologically and economically important species. The ...
(Master thesis / Masteroppgave, 2019)
(Master thesis / Masteroppgave, 2018)
Road and tunnel wash runoff contain a mixture of organic and inorganic contaminants that threatens the quality of natural water bodies, and the health of the organisms dependent on these waters. A variety of treatment ...
(Master thesis / Masteroppgave, 2018)
Mange miljøgifter kan forårsake DNA-skade i akvatiske organismer, blant annet gjennom dannelsen av radikaler. En viktig type skade er DNA-trådbrudd, som kan kvantifiseres ved bruk av enkeltcelle-elektroforese, comet assay. ...
(Master thesis, Group thesis / Masteroppgave, Gruppeoppgave, 2018)
Per- og polyfluorerte alkylstoffer (PFAS) har blitt funnet i blodprøver fra sørjo (Catharacta maccormicki) tatt i løpet av hekkesesongen i kolonien i Svarthamaren (Dronning Mauds land, Antarktis). For å undersøke om disse ...
(Master thesis / Masteroppgave, 2018)
(Master thesis / Masteroppgave, 2018)
Nanopartikler er definert som partikler i størrelsen 1 nm til 100 nm i en dimensjon. Nanopartikler finnes naturlig i sand, glass og stein. I tannbehandlinger benyttes ofte silikananopartikler for å gi ulike materialer ...
(Master thesis / Masteroppgave, 2017)
Risiko knyttet til eksponering av miljøgifter i det antarktiske økosystemet har blitt vurdert som lav, og som følge av dette har studier som omhandler organohalogene miljøgifter (OHC) i det Antarktiske dyrelivet vært ...
(Master thesis / Masteroppgave, 2017)
Persistent and lipophilic contaminants present in the oceans will accumulate in organisms through transfer in foodwebs. Many seabirds occupy high trophic positions in marine foodwebs, and may be used as bioindicators for ...
(Master thesis / Masteroppgave, 2017)
(Master thesis / Masteroppgave, 2017)
(Master thesis / Masteroppgave, 2017)
Effects of EE2 on zebrafish larvae (Danio rerio) anxiety and immediate neutrophil response to tail-fin cutting Restricted Access
(Master thesis / Masteroppgave, 2017)
(Master thesis / Masteroppgave, 2016)
(Master thesis / Masteroppgave, 2016)
(Master thesis / Masteroppgave, 2016)
Phthalates are used in plastics to promote flexibility, but as they easily migrate from the plastic humans are widely exposed. The exposure to phthalates has been associated with worsening and incidence of allergic diseases ...
(Master thesis / Masteroppgave, 2016)
Epidemiological studies have demonstrated that exposure to air pollution is associated with increased mortality and morbidity due to respiratory and cardiovascular disease. The majority of the effects have been related to ...
(Master thesis / Masteroppgave, 2015)
(Master thesis / Masteroppgave, 2015)
Heroin er et mye misbrukt opioid som er involvert i de fleste narkotikarelaterte dødsfallene i Norge. Utvikling av såkalt farmakokinetisk rettet terapi har i den senere tid fått økende interesse, men detaljert kunnskap om ...
(Master thesis / Masteroppgave, 2015)
Polymer-based composite materials have replaced the use of amalgam as filling material of choice in modern dentistry. Methacrylate monomers are key constituents in the polymer-based composite materials. The monomers are ...
(Master thesis / Masteroppgave, 2015)
Long-range transport and deposition of POPs pose a significant threat to Arctic ecosystems, as they have shown to accumulate in Arctic wildlife and biomagnify along Arctic food chains. High trophic level species such as ...
(Master thesis / Masteroppgave, 2015)
Due to their unique physical and chemical properties, gold nanoparticles (AuNPs) are promising in a wide variety of biomedical applications. However, there are several indications that AuNPs may be toxic and that particle ...
(Master thesis / Masteroppgave, 2015)
Poly- and perfluoroalkyl substances (PFASs) are anthropogenic and persistent chemicals used as surfactants in many applications, including aqueous film-forming foams (AFFFs, fire foams). Regular training exercises utilising ...
(Master thesis / Masteroppgave, 2015)
Food and feed products made of cereal grain can be contaminated by mycotoxins that can adversely affect the health of animals and humans. To determine how human consumers are affected it is important to explore the effects ...
(Master thesis / Masteroppgave, 2015)
Tunnels are washed regularly to maintain road safety and increase their life span. During a tunnel wash event, highly contaminated tunnel wash water is generated and released to the environment. Tunnel wash water may be ...
(Master thesis / Masteroppgave, 2015)
Indre Oslofjord er en delvis innelukket fjord som er omkranset av et av landets mest tettbebygde områder, noe som medfører en høy tilførsel av miljøgifter. Formålet med denne oppgaven var å undersøke effekter av disse ...
An in vitro study of the genotoxic effect of substituted furans on cells transfected with human metabolizing enzymes Restricted Access
(Master thesis / Masteroppgave, 2015)
In this study, the parental V79 Chinese hamster lung cell line was compared to the transfected clone V79 (CYP) 2E1 (SULT) 1A1, which expresses the human cytochrome p450 enzyme (CYP) 2E1 and (SULT) 1A1. The transfected cell ...
(Master thesis / Masteroppgave, 2015)
Nanoparticles are particles with at least one dimension between 1 and 100 nm. Due to their unique properties, gold nanoparticles (AuNPs) are used for drug delivery, diagnostics and cellular imaging, but there are concerns ...
(Master thesis / Masteroppgave, 2015)
The Arctic has in the later years become a final destination for persistent organic pollutants (POPs) which are, due to long-range atmospheric transport, river outlets and ocean currents, brought into the pristine arctic ...
(Master thesis / Masteroppgave, 2015)
(Master thesis / Masteroppgave, 2015)
Long-range atmospheric transport, ocean currents, and rivers transport environmental contaminants, such as perfluoroalkyl substances (PFASs), to the Arctic. Some of these PFASs may reach high concentrations in the upper ...
(Master thesis / Masteroppgave, 2015)
Per- and polyfluorinated substances (PFASs) are persistent, bioaccumultative and toxic substances, with unique physiochemical properties. Widespread application in commercial and industrial products has resulted in a global ...
(Master thesis / Masteroppgave, 2014)
There are multiple environmental factors that can affect the toxicity of a chemical to an organism in its natural environment. These include temperature, humidity, predation, competition, diseases, and presence of other ...
(Master thesis / Masteroppgave, 2014)
Juvenile Atlantic cod (Gadus morhua) were exposed to water-accommodated fractions (WAFs) of Arabian light crude oil in two concentrations for one, two or three weeks. The last group was exposed for three weeks followed by ...
Effekter av miljøgifter på torsk (Gadus morhua) fra indre Oslofjord Restricted Access
(Master thesis / Masteroppgave, 2014)
Utslipp av miljøgifter til miljøet skyldes ofte ulike typer urbane og industrielle aktiviteter. En stor andel av miljøgiftene vil ende opp i akvatiske økosystemer som følge av direkte utslipp eller indirekte utslipp via ...
(Master thesis / Masteroppgave, 2014)
The purpose of this study was to characterise biotransformation and immune responses in juvenile Atlantic cod (Gadus morhua) following exposure for 2, 8 and 16 days to the water-soluble fraction of North Sea crude oil in ...
(Master thesis / Masteroppgave, 2014)
Piggvar (Scophthalmus maximus) ble eksponert for den vannløselige fraksjonen av Ekofisk råolje i et gjennomstrømmingssystem i 16 dager. Delvis nedbrutt olje ble fordelt på grus i kolonner med konsentrasjoner på 6, 12 og ...
(Master thesis / Masteroppgave, 2014)
(Master thesis / Masteroppgave, 2014)
Denne studiens formål var å indikere eventuelle effekter av miljøgifter i torsk fra indre Oslofjord. En rekke fysiologiske og molekylære biomarkører ble benyttet til dette formålet. Biomarkørene hadde potensialet til å ...
(Master thesis / Masteroppgave, 2014)
(Master thesis / Masteroppgave, 2014)
Heroin is the main abused opioid, and is causing most drug use related deaths in the European Union and in the USA. New treatment strategies for heroin addiction are needed, and an alternative could be modulation of the ...
(Master thesis / Masteroppgave, 2014)
Nanotechnology is a growing industry bringing with the increasing utilization of nanoparticles (NP). NPs are defined as particles with at least one dimension being smaller than 100 nm. They are an increasing concern because ...
(Master thesis / Masteroppgave, 2014)
Abstract It is not known whether exposure to persistent organic pollutants (POPs) cause epigenetic changes in marine mammals. Ringed seals are a key species at the higher trophic levels of arctic marine ecosystems, and may ...
(Master thesis / Masteroppgave, 2013)
Passive dosing in a Skeletonema costatum toxicity test Restricted Access
(Master thesis / Masteroppgave, 2013)
Precise estimation of toxicity is essential in the risk assessment of hydrophobic organic compounds (HOCs). Toxicity testing of HOCs in aquatic bioassays is particularly challenging due to loss of substance from the water ...
(Master thesis / Masteroppgave, 2013)
The present study is part of an ongoing effort to monitor the pollution situation in the inner Oslofjord. The purpose of the study was to investigate effects of pollutants on the resident cod population in the area. The ...
(Master thesis / Masteroppgave, 2013)
Perfluorooctanoic acid (PFOA) and fluoranthene are organic pollutants with a widespread environmental occurrence. They are both present in the environment, and are known to concentrate and bioaccumulate in organisms, PFOA ...
(Master thesis / Masteroppgave, 2013)
Claviceps purpurea is a phytopathogenic ascomycete that parasitizes various grasses, most notably rye. Instead of a grain the infected host plant produces a fungal sclerotium in the autumn, containing toxic indole-alkaloids ...
(Master thesis / Masteroppgave, 2013)
Marine organisms are exposed to a wide range of potentially hazardous substances, from natural and/or anthropogenic sources. Organisms in polluted sediments may accumulate high amounts of chemical contaminants and transfer ...
Toxicity of various mycotoxins to immune cells in vitro, with focus on morphological and phenotypic changes Restricted Access
(Master thesis / Masteroppgave, 2013)
Mycotoxins is a unwanted contaminant on grain, corn and fruits and are reported to be found in increasing amounts also in processed food. There is an increasing focus on mycotoxins worldwide regarding their deleterious ...