Browsing NIVA Open Access Archive by Title
Now showing items 6779-6798 of 8176
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Top-down versus bottom-up project appraisal processes, and external review. Evidence from Norway and China
(Peer reviewed; Journal article, 2013)Project appraisal plays an important role in choosing the right project and is crucial for the success of public investment projects. Different factors may affect the choice of appraisal process in different countries. By ... -
Totalt organisk karbon (TOC). Analysemetoder og instrumenter
(NIVA-rapport;2122, Research report, 1988)Rapporten gir en oversikt over metoder for oppslutning av karbonforbindelser i vann og den etterfølgende deteksjon av oksidasjonsproduktene. Fordeler og ulemper ved de ulike fremgangsmåtene er diskutert. I tillegget er det ... -
TOVERDIG JERNSULFAT SOM FELLINGSMIDDEL VED RENSING AV KOMMUNALT AVLØPSVANN
(NIVA-rapport;0631, Research report, 1974)FORSKJELLIGE FAKTORER BELYST FOR BRUK AV TOVERDIG JERNSULFAT SOM FELLINGSMIDDEL I SEKUNDÆRFELLING VED RENSING AV KOMMUNALT AVLØPSVANN. RESULTATER MED DISKUSJON -
Towards a comprehensive and realistic risk evaluation of engineered nanomaterials in the urban water cycle
(Journal article; Peer reviewed, 2014) -
Towards a future without stocking: harvest and river regulation determine long-term population viability of migratory salmonids
(Peer reviewed; Journal article, 2021)Freshwater species are particularly vulnerable to emerging threats linked to climate change because they are often already heavily impacted by habitat destruction, pollution, and exploitation. For many harvested populations ... -
Towards improved waste management in Bago Region, Myanmar – An initial assessment - Baseline report
(NIVA-rapport;7706, Research report, 2022)The baseline report draws on research carried out as part of the ‘Bago Waste’ project, led by NIVA, in the Bago Region of Myanmar. It provides an initial assessment of the waste management situation in Myanmar, with special ... -
Towards sustainable management of kelp forests: An analysis of adaptive governance in developing regimes for wild kelp harvesting in Scotland and Norway
(Peer reviewed; Journal article, 2021)Kelp forests are highly productive habitats which support important marine species and ecosystem services including coastal protection and carbon storage. Demand is increasing for commercial products from wild and cultivated ... -
Towards sustainable waste management in Myanmar – key results from the project ‘Capacity building on waste management in the Bago Region’
(NIVA-rapport;7923-2023, Report, 2023)This report presents key results from the project ‘Capacity building on waste management in the Bago Region’. It synthesizes primary and secondary data on various aspects of waste management in the Bago Township, including ... -
Toxicity of microplastics and natural particles in the freshwater dipteran Chironomus riparius: Same same but different?
(Peer reviewed; Journal article, 2020)Microplastics (MP) are contaminants of emerging concern in aquatic ecosystems. While the number of studies is rapidly increasing, a comparison of the toxicity of MP and natural particulate matter is largely missing. In ... -
Toxicity of organic compounds from unresolved complex mixtures (UCMs) to primary fish hepatocytes
(Journal article; Peer reviewed, 2017)Many environmental matrices contaminated with organic pollutants derived from crude oil or degraded petroleum contain mixtures so complex that they are typically unresolved by conventional analytical techniques such as gas ... -
Toxicity screening of industrial wastewater in the Odra river basin
(NIVA-rapport;2979, Research report, 1993)The effluents from 24 major industries in the Odra river catchment have been characterised as regards toxicity to fresh water organisms and chemical composition. Toxicity screening included tests with bacteria, algae, ... -
Trace metal mobility and faunal effects of weight materials in water-based drilling muds
(NIVA-rapport;5680, Research report, 2009)Ilmenite and barite minerals are alternative weight materials in water-based drilling muds for off-shore drilling operations. After use mud remnants may be discharged from the platforms and end up in cuttings deposits on ... -
Trace Metal Pollution in Eastern Finmark Norway, as Evidenced by Studies of Lake Sediments
(NIVA-rapport;2727, Research report, 1992)Sedimentkjerner fra Dalvatn og Durvatnet i Sør-Varanger er datert ved gammastråle-spektroskopi, og analyser for tungmetallene Cd, Co,Cu, Ni, Pb og Zn, samt radionuklider. De største sedimentasjonshastighetene for Co, Cu ... -
Trace metal pollution in Eastern Finnmark, Norway and Kola Peninsula, Northwestern Russia as evidenced by studies of lake sediment
(NIVA-rapport;3465, Research report, 1996)Piston sediment cores from Lakes Hundvatn (eastern Finnmark, Norway) and Shuonijârvi (northwestern Russia) in March 1993 were dated with 210 Pb. Sedimentation rates at Hundvatn are 1.9+0.3 mg cm² y1 (0.028 cm y1) below a ... -
Trace metals in Norwegian surface waters, soils, and lake sediments - relation to atmospheric deposition
(NIVA-rapport;5222, Research report, 2006)This report presents results from simultaneous trace metal surveys 1995 in Norway on atmospheric deposition based on moss analysis, the humic layer of soils, lake sediments, and surface waters. The samples of sediment and ... -
Tracing recovery from acidification - a multivariate approach (ICP Waters report 69/2002)
(NIVA-rapport;4564, Research report, 2002-09)This report presents a method based on use of multivariate statistics to detect trends in aqutic biota as a results of chemical recovery from acidification. Three datasets from Norway, Sweden and UK are used in the work. ... -
Tracing sources of nitrate in agrucultural catchment by natural stable isotopes
(NIVA-rapport;5240, Research report, 2006)The report summarises the results from isotope studies performed as part of the Strategic Institute Programme ‘Watershed-oriented management of large rivers’ and the research programme INTRA – ‘Integrated risk assessment ... -
Traditional Dimensions of Seabed Resource Management in the Context of Deep Sea Mining in the Pacific: Learning From the Socio-Ecological Interconnectivity Between Island Communities and the Ocean Realm
(Peer reviewed; Journal article, 2021)In many of the Pacific Islands, local communities have long-held cultural and spiritual attachments to the sea, in particular to species and specific marine areas, processes, habitats, islands, and natural seabed formations. ... -
Trafikkforurenset snø i Drammen sentrum. Konsekvenser av snødumping for vann- og sedimentkvalitet i Drammenselva
(NIVA-rapport;4460, Research report, 2001)Snø fra Drammen sentrum dumpes i Drammenselva. Fire ulikt trafikkbelastede steder i Drammen sentrum samt ett referansested utenfor sentrum ble valgt for kjemisk analyse av forurensinger i snøen. Konsentrasjonen av de fleste ... -
Trafikkforurenset snø i Oslo
(NIVA-rapport;3131, Research report, 1994)På bakgrunn av snødumping i Bispevika ble det startet et prosjekt for å klarlegge forurensningen i veisnø. En referanse og 5 trafikkpåvirkede lokaliteter ble valgt. Tverrsnittet av brøytekantene langs veier og gater i Oslo ...