Browsing NIVA Open Access Archive by Title
Now showing items 4914-4933 of 8166
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PCB-konsentrasjoner i sedimenter fra NSB's båthavn i Åkersvika og fra Mjøsa utenfor Esperen Rapport fra undersøkelsen i 1999
(NIVA-rapport;4167, Research report, 2000)Vi har undersøkt konsentrasjoner av PCB i toppsedimentet (0-2 cm) fra 30 lokaliteter i Mjøsa nær Hamar. Dette arbeidet ble startet opp etter initiativ fra NSB, teknisk sektor. Årsaken var at en undersøkelse fra 1990 pekte ... -
PCB-konsentrasjoner i sedimenter fra NSBs båthavn i Åkersvika og i nærliggende område i Åkersvika Naturreservat etter at de mest PCB-belastede sedimenter er fjernet
(NIVA-rapport;4529, Research report, 2003)Våren 2001 fjernet NSB et ca 20-30 cm tykt lag av sjøbunnen i NSBs båthavn, en liten vik av Åkersvika Naturreservat mellom Jernbanebrua og Stangebrua, og erstattet dette med ren masse. Undersøkelser foretatt av NIVA i 1990 ... -
Pelagic community production and carbon-nutrient stoichiometry under variable ocean acidification in an Arctic fjord
(Journal article; Peer reviewed, 2013)Net community production (NCP) and carbon to nutrient uptake ratios were studied during a large-scale mesocosm experiment on ocean acidification in Kongsfjorden, western Svalbard, during June–July 2010. Nutrient depleted ... -
Pelagic food webs of humic lakes show low short-term response
(Journal article; Peer reviewed, 2019)Forest harvest in the boreal zone can increase the input of terrestrial materials such as dissolved organic carbon (DOC) and nitrate (NO3) into nearby aquatic ecosystems,with potential effects on phytoplankton growth through ... -
Perfluoroalkyl substances in circum-ArcticRangifer: caribou and reindeer
(Peer reviewed; Journal article, 2021)Livers of caribou and reindeer (Rangifer tarandus) from Canada (n = 146), Greenland (n = 30), Svalbard (n = 7), and Sweden (n = 60) were analyzed for concentrations of eight perfluoroalkyl carboxylic acids and four ... -
Performance and applications of satellite remote sensing data for water quality in Norwegian lakes. Evaluation of MERIS, Sentinel-2 and Sentinel-3 products
(NIVA-rapport;7443, Research report, 2019)In this work, five lakes have been evaluated for the purpose of including satellite remote sensing products in water quality monitoring. Atmospheric correction has been performed and in-water products have been calculated, ... -
Performance of secondary wastewater treatment methods for the removal of contaminants of emerging concern implicated in crop uptake and antibiotic resistance spread: A review
(Journal article; Peer reviewed, 2019)Contaminants of emerging concern (CEC) discharged in effluents of wastewater treatment plants (WWTPs), not specifically designed for their removal, pose serious hazards to human health and ecosystems. Their impact is of ... -
Performance of Three-Dimensional Rainbow Trout (Oncorhynchus mykiss) Hepatocyte Spheroids for Evaluating Biotransformation of Pyrene
(Journal article; Peer reviewed, 2019)The aquatic bioconcentration of a chemical is typically determined using conventional fish tests. To foster the approach of alternatives to animal testing, a combination of computational models and in vitro substrate ... -
Performance study of diffusive gradients in thin films (DGT) for 55 elements
(NIVA-rapport;4604, Research report, 2002)The technique of diffusive gradients in thin films (DGT) is a fairly new and useful tool for in situ measurement of labile metal ions in water. In this study the applicability of DGT for determining 55 elements has been ... -
Perspectives and challenges of applying the water-food-energy nexus approach to lake eutrophication modelling
(Peer reviewed; Journal article, 2021)The water-food-energy (WFE) nexus is about balancing competing interests to secure the sustainability of services provided by interconnected sectors. Ignoring the interconnections could cause serious consequences. For ... -
Perspektivanalyse av forsknings- og utredningsbehovet i Telemark. Naturressurser. Utbyggingspolitikk. Økonomi
(NIVA-rapport;1013, Research report, 1978)Behandler FoU-behovet i Telemark for naturressurser, utbyggingspolitikk og økonomi. Særlig vekt på vann- og luftspørsmål. Eksisterende forhold nyttes som utgangspunkt for oppsett av i alt 50 aktuelle prosjekter inndelt i ... -
Perspektivstudie av kråkeboller - fra problem til ressurs. - Analyse av ressursgrunnlaget for høsting av kråkeboller og veurdering av økologiske perspektiver knyttet til høstingen
(NIVA-rapport;6001, Research report, 2010)NIVA har utarbeidet modeller over fordeling av tare og høstbare forekomster av kråkeboller i våre tre nordligste fylker. Det er anslått at bunnarealer i størrelsesorden 3 500 km2 er nedbeitet og at det er ca. 80 milliarder ... -
Pervasive iron limitation at subsurface chlorophyll maxima of the California Current
(Journal article; Peer reviewed, 2018)Subsurface chlorophyll maximum layers (SCMLs) are nearly ubiquitous in stratified water columns and exist at horizontal scales ranging from the submesoscale to the extent of oligotrophic gyres. These layers of heightened ... -
Pesticide levels and environmental risk in aquatic environments in China - A review
(Journal article; Peer reviewed, 2015)China is one of the largest producers and consumers of pesticides in the world today. Along with the widespread use of pesticides and industrialization, there is a growing concern for water quality. The present review aims ... -
Pesticide risk assessment and management in a globally changing world—report from a European interdisciplinary workshop
(Journal article; Peer reviewed, 2013) -
Petrokjemianlegg på Kårstø. Fastsittende alger og dyr. Undersøkelser 1981-1983
(NIVA-rapport;1602, Research report, 1984)I 1981-1983 ble det utført økologisk-basisundersøkelse av 22 strandlokaliteter og 8 hardbunnslokaliteter nedenfor tidevannssonen i området rundt gassterminalen på Kårstø, Rogaland. Undersøkelsen har etablert status for ... -
Petroleum oil and mercury pollution from shipwrecks in Norwegian coastal waters
(Journal article; Peer reviewed, 2017)Worldwide there are tens of thousands of sunken shipwrecks lying on the coastal seabed. These potentially polluting wrecks (PPW) are estimated to hold 3–25 million t of oil. Other hazardous cargo in PPW includes ordnance, ... -
pH-målinger i Eksingedalselva og Frøysetelva i 1999 og 2000
(NIVA-rapport;4454, Research report, 2001)Vedlagt følger en gjennomgang av pH-data fra loggerstasjonene i de to vassdragene. Både ukorrigerte og korrigerte kurver er presentert, og resultatene av målingene på flakseprøvene er plottet inn på kurvene. Det er gjort ... -
Pharmaceutical pollution: Prediction of environmental concentrations from national wholesales data
(Peer reviewed; Journal article, 2022)The regulation and monitoring of pharmaceutical pollution in Europe lag behind that of more prominent groups. However, the repurposing of sales data to predict surface water environmental concentrations is a promising ... -
Pharmaceuticals and their metabolites in the marine environment: Sources, analytical methods and occurrence
(Peer reviewed; Journal article, 2020)The occurrence of pharmaceuticals in the environmental waters is a global concern. There is little research conducted on the monitoring of pharmaceuticals in the marine environment. In this article, the occurrence of ...