Browsing Brage NMBU by Author "Riise, Gunnhild"
Now showing items 21-40 of 55
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Heavy Metals Contamination of Soil in the Vicinity of Hawassa Industrial Zone, Ethiopia
Samuel, Bekele; Solomon, S; Daniel, F; Zinabu, GM; Riise, Gunnhild (Journal article; Peer reviewed, 2020)Industrial effluents, containing heavy metals, drain directly into downstream water sources within the Hawassa Industrial Zone. These, water sources are used for irrigation, drinking water and other domestic purposes. The ... -
Heavy Metals in Fish Muscle from an Ethiopian Rift Valley Lake (Hawassa) and a Neighboring Stream (Boicha): Assessment of Human Health
Samuel, Bekele; Sorsa, Salomon; Daniel, F; Riise, Gunnhild; Zinabu, GM (Journal article; Peer reviewed, 2020)Concentrations of heavy metals (Cr, Co, Fe, Ni, Cu, Zn, As, Se, Pb and Hg) in muscle tissues of two fish species (Clarias gariepinus and Oreochromis niloticus) in an Ethiopian rift-valley lake (Hawassa) and a neighboring ... -
Historisk utvikling i vannkvalitet : paleolimnologiske undersøkelser i Tunevannet
Poverud, Liv Mette (Master thesis, 2017)Paleolimnologiske undersøkelser kan bidra til å øke kunnskapsgrunnlaget for vurdering av vannkvalitet iht. vanndirektivet. Sedimentundersøkelser kan gi referansetilstand (”upåvirket” tilstand) og dagens tilstand i en og ... -
How green is the green shift? : the potential effects of a bioeconomy on ecosystem services in Nordic catchments
Immerzeel, Bart (PhD Thesis;2021:67, Doctoral thesis, 2021)In light of the increasing pressures from human activities on ecosystems and the global climate, the Nordic countries have decided that a green shift is necessary to ensure the future wellbeing of society. The transition ... -
Interne tilførsler og omsetning av næringsstoffer i Østensjøvann, Ås kommune, 2017
Haugen, Thrond O.; Riise, Gunnhild; Rohrlack, Thomas; Schneider, Susanne; Kristiansen, Johnny; Haaland, Ståle (MINA fagrapport;59, Report, 2019) -
Ionic composition in Norwegian lakes from 1986 to 2014 : dominating processes and trends
Hunskår, Linn Agnethe (Master thesis, 2016-08-11)In the 70s anthropogenic emissions of sulphur dioxide (SO2) and nitrous oxides (NOx) in Europe and Russia lead to acidification and fish deaths in many lakes in the South and North of Norway. Therefore the Gothenburg ... -
Kilder og variasjoner i jern langs et borealt vassdrag i Sørøst-Norge under en tørkeperiode
Pålsrud, Sigrid Hårstad (Master thesis, 2022)Jern (Fe) har i de senere årene fått økt oppmerksomhet på grunn av den stadig økende konsentrasjonen i boreale vassdrag og hvordan det påvirker dette kjemiske og biologiske miljøet i ferskvannsystemene. I dette studiet ble ... -
Langtidsutvikling for veinære innsjøer utsatt for veisaltavrenning, studert med paleolimnologiske metoder
Lööv, Hanna Emma Kristin (Master thesis, 2018)Veisalt brukes for å sikre gode kjørevilkår på veiene under vinteren i Norge, men veisaltavrenning kan føre til fysiske, kjemiske og biologiske konsekvenser i innsjøer. Veisaltavrenning kan føre til permanente saltsjiktninger ... -
Learning from the past : using lake sediments as chemical and biological archives
Kyle, Marcia (PhD Thesis;2015:27, Doctoral thesis, 2017-07-12)This thesis advances the analysis of the organic fraction of sediment to reconstruct lake history using DNA fragments and algal pigments in combination with available monitoring data. These methods were tested in southern ... -
Long-range pollution and historic climate and element trends in an 1100-year lake sediment record from the remote lake Sarsvatnet, Svalbard
Vognild, Karoline Kristin (Master thesis, 2022)Although remote, the Arctic is influenced by long-range pollution from lower latitudes. Lake sediments are sensitive to minor environmental changes, and thus accumulated heavy metals and organic substitutes can represent ... -
Long-term development in Lake Øyeren studied by paleolimnological method
Shyika, Sergii (Master thesis, 2017)Lake Øyeren is a freshwater lake in SE-Norway that is located in the lower part of the river Glomma, having a large drainage area. In the northern part of the lake, river Glomma and two smaller rivers have built up the ... -
Miksotrofi sin rolle for vekst av Gonyostomum semen og nitrogenlimitasjon i en humøs innsjø
Flakke, Agnes Elise (Master thesis, 2022)Gonyostomum semen er en encellet nåleflagellat som oppleves som en «skadelig alge» i Norge. Algen har egenskaper som gjør at den ofte danner intensive algeoppblomstringer, deriblant vertikal vandring (DVM) og evnen til ... -
Miljøstatus i Årungen studert ved Cs-137 datering og sedimentanalyser av karbon, nitrogen, fosfor, svovel, kobber, jern, mangen, sink og bly
Snuggerud, Turid (Master thesis, 2013)Eutrofiering er en sammensatt dynamisk prosess i en innsjø og involverer en rekke kjemiske stoffer. Spesielt fosfor er av avgjørende betydning som vekstbegrensende faktor for alger. Innsjøen er imidlertid påvirket av ... -
Mobilisering av metaller og sirkulasjonsforhold i meromiktiske vegnære innsjøer
Fredheim, Eirik André (Master thesis, 2020)Forurensning fra veg er vist i flere studier å påvirke innsjøer ved å tilføre tungmetaller og vegsalt. Tilførsel av metaller kan ha potensielle toksiske effekter på biota, og vegsalt kan føre til endrede sirkulasjonsforhold ... -
Mobilisering av tungmetaller i rensedammer med høy tilførsel av veisaltavrenning : studert i Fossbekken rensedam langs E18
Enhuus, Emma Elisabeth (Master thesis, 2020)In Norway large quantities of road salt are used during the winter to maintain safety and best possible road standard. It is mostly sodium chloride (NaCl) that is distributed on the Norwegian roads. From the NaCl, Cl- can ... -
Multi-year transport studies of sulfonylurea herbicides from a barley field in Norway, 2007-2010 – including development of LC-MS/MS methods for quantitative analysis of sulfonylurea herbicides and degradation products
Almvik, Marit; Riise, Gunnhild; Bolli, Randi; Børresen, Trond; Christiansen, Agnethe; Odenmarck, Sven R.; Holten, Roger (Bioforsk Rapport, Research report, 2011)The report presents the results from multi-year field studies of transport of the sulfonylurea herbicides tribenuron-methyl and amidosulfuron in a barley field in Norway. A method for sample preparation of water samples ... -
Natural stochasticity vs. management effort: use of year-to year variance for disentangling significance of two mutually confounding factors affecting water quality of a Norwegian cold dimictic lake
Romarheim, Aleksandra Tmic; Tominaga, Koji; Riise, Gunnhild; Andersen, Tom (Journal article; Peer reviewed, 2014) -
NOMiNOR: Natural Organic Matter in drinking waters within the Nordic Region
Haaland, Ståle Leif; Jarvis, Peter; Vogt, Rolf David; Zahlsen, Kolbjørn (Norsk Vann Rapport;, Research report, 2018)NOMiNOR: Natural Organic Matter in drinking waters within the Nordic Region -
Norwegian Journal of Agricultural Sciences : contamination of pesticides from agricultural and industrial areas to soil and water
Lode, Olav; Riise, Gunnhild; Eklo, Olav Martin; et al. (Journal issue, 1994) -
Norwegian Scenarios II. Final report from the period 2007/2008
Eklo, Ole Martin; Almvik, Marit; Bolli, Randi; Børresen, Trond; Haraldsen, Terje; Haugen, Lars Egil; Holten, Roger; Riise, Gunnhild (Bioforsk Rapport, Research report, 2009)This is a final report for the project Norwegian Scenarios II, part two, that has been performed in collaboration between Bioforsk Plant Health and Plant Protection, The Norwegian University of Life Sciences and the Norwegian ...