Browsing NIVA Open Access Archive by Title
Now showing items 745-764 of 8166
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A case of anisotropic exchange of non-polar chemicals with absorption-based passive samplers in water
(Peer reviewed; Journal article, 2019)Passive sampling is a powerful technique for the sampling hydrophobic organic contaminants present at trace level in water. A robust application of performance reference compounds (PRCs) for the estimation of in situ ... -
Catchment properties and the photosynthetic trait composition of freshwater plant communities
(Peer reviewed; Journal article, 2019)Unlike in land plants, photosynthesis in many aquatic plants relies on bicarbonate in addition to carbon dioxide (CO2) to compensate for the low diffusivity and potential depletion of CO2 in water. Concentrations of ... -
Catchment report: Kapos, Hungary. Trend analysis, retention and source apportionment
(NIVA-rapport;4790, Research report, 2004)The report may also be downloaded from the EUROHARP web site: www.euroharp.org. Editors, authors and NIVA assume no liability for any loss resulting from the use for the results in this report -
Caught in the middle: bottom‑up and top‑down processes impacting recruitment in a small pelagic fsh
(Journal article; Peer reviewed, 2022)Understanding the drivers behind fluctuations in fish populations remains a key objective in fishery science. Our predictive capacity to explain these fluctuations is still relatively low, due to the amalgam of interacting ... -
CDOM absorption properties of natural water bodies along extreme environmental gradients
(Journal article; Peer reviewed, 2019)We present absorption properties of colored dissolved organic matter (CDOM) sampled in six different water bodies along extreme altitudinal, latitudinal, and trophic state gradients. Three sites are in Norway: the mesotrophic ... -
The challenges of opportunistic sampling when comparing prevalence of plastics in diving seabirds: A multi-species example from Norway
(Peer reviewed; Journal article, 2024)There is a need for baseline information about how much plastics are ingested by wildlife and potential negative consequences thereof. We analysed the frequency of occurrence (FO) of plastics >1 mm in the stomachs of five ... -
Challenges with Quantifying Tire Road Wear Particles: Recognizing the Need for Further Refinement of the ISO Technical Specification
(Peer reviewed; Journal article, 2021)Environmental monitoring data for tire road wear particles are vastly limited compared to those for other microplastics, primarily due to analytical challenges with quantification. Recently, two ISO technical specifications ... -
Changes in drug use in European cities during early COVID-19 lockdowns – A snapshot from wastewater analysis
(Peer reviewed; Journal article, 2021)The COVID-19 outbreak has forced countries to introduce severe restrictive measures to contain its spread. In particular, physical distancing and restriction of movement have had important consequences on human behaviour ... -
Changes in microbial water quality in RAS following altered feed loading
(Journal article; Peer reviewed, 2018)Intensive recirculating aquaculture systems (RAS) with its hyper-eutrophic water offer ideal conditions for bacterial growth, abundance and activity, potentially affecting fish and system performance. Feed composition and ... -
Changes in phytoplankton community structure over a century in relation to environmental factors
(Peer reviewed; Journal article, 2022)Changes in phytoplankton abundance and biomass during the period 1933–2020 were examined by statistical modeling using data from the Inner Oslofjorden phytoplankton database. The phytoplankton abundances increased with ... -
Changes in the chemistry of Lake Hovvatn, Norway, following liming and reacidification
(NIVA-rapport;1657, Research report, 1984)Hovvatn, a 1 km², chronically-acidified lake in southernmost Norway, was treated with 200 metric tons of powdered limestone in March 1981. An additional 40 metric tons were spread uniformly on the ice of a 0.045 km² pond ... -
Changes in the diatom community in the great lake (Lurë National Park, Albania) from 2005 to 2017 and first steps towards assessment the water quality
(Peer reviewed; Journal article, 2020)Great Lake is the largest of 14 lakes situated in Lurë National Park, in the eastern part of the Lurë Mountains, Albania. To characterize lake ecological status, epiphytic and epilithic diatom samples were collected from ... -
Characterization of cell responses in Rhodomonas baltica exposed to PMMA nanoplastics
(Peer reviewed; Journal article, 2020)Due to their small size, nanoplastics (NPLs) possess specific properties which can potentiate their toxicity towards aquatic organisms. As primary producers, microalgae are at the base of aquatic food chains, thus negative ... -
Characterization of effluents from a dehydrated fish and marine soup plant: Toro A/S Rieber & Son, Bergen
(NIVA-rapport;0470, Research report, 1973)ENGELSK TEKST. BEREGNET SAMMENSETNING AV AVLØP BASERT PÅ KJENNSKAP TIL DELPROSESSER VED FISKESUPPEFABRIKK 74 0110 -
Characterization of multiple biomarker responses using flow cytometry to improve environmental hazard assessment with the green microalgae Raphidocelis subcapitata
(Journal article; Peer reviewed, 2019)Microalgal toxicity tests using integrative endpoints as algal growth are regularly required to analyse the toxicity of potentially hazardous substances in the aquatic environment. However, these do not provide mechanistic ... -
Characterization of the Bago Sub-basin Pilot implementing the EU Water Framework Directive
(NIVA-rapport;7194, Research report, 2017)The aim of this report is to characterize the Bago Sub-basin, located in the Bago Region in the south-central part of Myanmar. The report presents the different characterization steps, including methods for identifying ... -
Characterization of the degree of stability of waste water sludges progress report no. 2
(NIVA-rapport;0605, Research report, 1974)Engelsk tekst. Forskjellige parametre for måling av et aerobt stabilisert slams stabiliseringsgrad ble undersøkt. Undersøkelsene ble utført i laboratorieskala. Tre metoder for å måle stabiliseringsgrad ble foreslått. Disse ... -
Characterization of the degree of stability of waste water sludges. Progress report no. 1
(NIVA-rapport;0598, Research report, 1974)Engelsk tekst. Måling av et slams stabiliseringsgrad ble undersøkt. I den forbindelse ble slammets luktintensitet som funksjon av slammets stabiliseringsgrad undersøkt. Slammets avvanningsegenskaper kunne ikke brukes for ... -
CHARACTERIZATION OF THE DEGREE OF STABILITY OF WASTE WATER SLUDGES. PROGRESS REPORT NO. 3. LIME STABILIZED SLUDGES. EUROCOOP-COST 68/2/4
(NIVA-rapport;0612, Research report, 1974)ENGELSK TEKST. MÅLING AV ET SLAMS STABILITET ETTER KALKTILSETTING BLE UNDERSØKT. ET KALKSTABILISERT SLAMS LUKTINTENSITET UNDER LAGRING VIL IKKE REDUSERES PÅ GRUNN AV KALKTILSETTING. BARE TYPE LUKT VIL ENDRES. PH-ENDRING ... -
Characterization of tire and road wear microplastic particle contamination in a road tunnel: From surface to release
(Peer reviewed; Journal article, 2022)Road pollution is one of the major sources of microplastic particles to the environment. The distribution of tire, polymer-modified bitumen (PMB) and tire and road wear particles (TRWP) in different tunnel compartments ...