Browsing Norsk institutt for vannforskning by Title
Now showing items 3833-3852 of 8177
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Nedlagte deponier i Arendal kommune. Oppfølgende undersøkelser i 2002-2003
(NIVA-rapport;4768, Research report, 2003)Det er foretatt oppfølgende undersøkelser ved 4 avsluttede deponier i Arendal kommune. Undersøkelsene har gitt en bedre oversikt over forurensningsgtransporten fra deponiene og effekter i resipientene mht til miljøgifter. ... -
Nedlagte kommunale avfallsfyllinger i Aust-Agder: Vurdering av miljøpåvirkning og eventuelle behov for tiltak
(NIVA-rapport;4312, Research report, 2000)NIVA har undersøkt sigevannavrenningen fra 20 avsluttede avfallsfyllinger i 8 kommuner i Aust-Agder (Arendal, Birkenes, Froland, Grimstad, Iveland, Lillesand, Risør og Valle kommuner) i henhold til en forenklet prosedyre ... -
Nedre Otra. Undersøkelser av utslipp fra treforedlingsindustri, 1980
(NIVA-rapport;1312, Research report, 1981)I forbindelse med overvåkingsundersøkelser i Nedre Otra er det foretatt spredte målinger av utslippene fra Hunsfos Fabrikker og Norsk Wallboard i Vennesla. Prøvetakingene foregikk i juni og desember 1980. Utslippsmengdene ... -
Nefrokalsinose hos regnbueørret i oppdrettsanlegg ved Trengereid. Miljømessig årsaker
(NIVA-rapport;3027, Research report, 1994)Nefrokalsinose er påvist på regnbueaure i oppdrettsanlegget til Trengereid Fisk A/S. Diagnosen ble stilt i august 1993, og lidelsen har medført redusert tilvekst og moderat dødelighet hos regnbueaure utsatt våren 1993. ... -
The Neonicotinoid Imidacloprid Impairs Learning, Locomotor Activity Levels, and Sucrose Solution Consumption in Bumblebees (Bombus terrestris)
(Peer reviewed; Journal article, 2023)Bumblebees carry out the complex task of foraging to provide for their colonies. They also conduct pollination, an ecosystem service of high importance to both wild plants and entomophilous crops. Insecticides can alter ... -
Nesheimvassdraget i Vest-Agder. Vannkvalitetsundersøkelser 2004
(NIVA-rapport;5002, Research report, 2005)For å skaffe en oppdater oversikt over vannkvaliteten i Nesheimvassdraget (25 km²), nærmere 20 år etter forrige systematiske vannkvalitetsundersøkelse, ble det i perioden mai-oktober 2004 gjennomført 6 prøvetakingsrunder ... -
Neskollen næringsmiljøanlegg. Neskolltjernet. Vannkvalitet og skjøtsel
(NIVA-rapport;4189, Research report, 2000)på ettervinteren. For å opprettholde rimelig god vannkvalitet i tjernet må man ta en del enkle forholdsregler, samt legge forholdene til rette for en viss fremtidig skjøtsel. Innløpsbekkenes nedre del, dvs de delene som ... -
Nesttunvassdraget som resipient for kloakkvann
(NIVA-rapport;0130, Research report, 1965) -
Nestunvassdraget og Apeltunvassdraget i Bergen kommune. En orienterende undersøkelse av forurensningssituasjonen forsommeren 1988
(NIVA-rapport;2416, Research report, 1989)Resipientforholdene i Nestun- og Apeltunvassdraget ble undersøkt i perioden mai til juli 1988. De fysisk-kjemiske undersøkelsene viste at Apeltunvassdraget har en langt bedre bufferkapasitet mot sur nedbør enn Nestunvassdraget ... -
A Neural Network-Based Analysis of the Seasonal Variability of Surface Total Alkalinity on the East China Sea Shelf
(Peer reviewed; Journal article, 2020)Total alkalinity (AT) is an important variable in the regulation of the seawater carbonate chemistry system, determining the capacity to buffer changes in pH. In the coastal oceans, carbonate system dynamics are controlled ... -
Neuroendocrine indicators of allostatic load reveal the impact of environmental acidification in fish
(Peer reviewed; Journal article, 2020)When mobilized from surrounding soils and binding to gills at moderately low pH, aluminum (Al) cations can adversely affect fish populations. Furthermore, acidification may lead to allostatic overload, a situation in which ... -
Neutralisation of hydrogen peroxide after delousing events; technology development and environmental risk assessment
(NIVA-rapport;7635, Research report, 2021)The present project has conducted experiments in laboratory and pilot scale with chemical neutralisation of hydrogen peroxide, which, in combination with technological treatment pose a possible solution for onboard well ... -
New Approach Methodologies for the Endocrine Activity Toolbox: Environmental Assessment for Fish and Amphibians
(Peer reviewed; Journal article, 2023)Multiple in vivo test guidelines focusing on the estrogen, androgen, thyroid, and steroidogenesis pathways have been developed and validated for mammals, amphibians, or fish. However, these tests are resource-intensive and ... -
New Biomarkers
(NIVA-rapport;5214, Research report, 2006)Large volumes of produced water are released into the North Sea and there is still some uncertainty as to the environmental impacts. Following the BECPELAG workshop in 2001-2002, water column monitoring near selected ... -
New brominated flame retardants and dechlorane plus in the Arctic: Local sources and bioaccumulation potential in marine benthos
(Journal article; Peer reviewed, 2018)The aim of the present study was to investigate the presence and bioaccumulation of new flame retardants (nBFRs), polybrominated diphenyl ethers (PBDEs) and dechlorane plus (DDC-CO) in the marine environment close to an ... -
New insights into submarine tailing disposal for a reduced environmental footprint: Lessons learnt from Norwegian fjords
(Peer reviewed; Journal article, 2022)Submarine tailing disposal (STD) in fjords from land-based mines is common practice in Norway and takes place in other regions worldwide. We synthesize the results of a multidisciplinary programme on environmental impacts ... -
New insights into traditional health risk assessments of mercury exposure: Implications of selenium
(Journal article; Peer reviewed, 2014)There is increasing evidence that selenium (Se) has a significant effect on mercury (Hg) toxicology; however, Hg exposure risk assessments usually consider only the amount of Hg present in the environment or in food. On ... -
New microsatellite loci for the green sea urchin Strongylocentrotus droebachiensis using universal M13 labelled markers
(Journal article; Peer reviewed, 2014) -
New Oslo Airport Gardermoen. Biodegradation of the de-icing fluids Kilfrost DF and Clearway 1 in a soil profile
(NIVA-rapport;2797, Research report, 1992)The fate of the de-icing fluids Kilfrost DF (propylene glycol) and Clearway 1 (K-acetate) has been studied in soil lysimeters incubated in the laboratory. Experiments were carried out by 2-4°C and 12-14°C and the water ... -
New Oslo Airport Gardermoen. Biological Treatment of de-icing fluids
(NIVA-rapport;2798, Research report, 1992)During the winter planes and runways have to be sprayed with chemicals to prevent forming of ice. "Kilfros" (planes) and "Clearway" (runways) are the most common de-icing fluids in Norway. They both have a large content ...