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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 ... -
Characterizing combined effects of antiestrogenic chemicals on vitellogenin production in rainbow trout (Oncorhynchus mykiss) hepatocytes
(Journal article; Peer reviewed, 2017)Fish are exposed to a complex mixture of endocrine disrupting compounds (EDC), some of which display antiestrogenic activity leading to suppression of estrogen receptor (ER)- mediated reproductive processes. Although the ... -
Characterizing cytotoxic and estrogenic activity of Arctic char tissue extracts in primary Arctic char hepatocytes
(Journal article; Peer reviewed, 2017)Contaminants from various anthropogenic activities are detected in the Arctic due to long-range atmospheric transport, ocean currents, and living organisms such as migrating fish or seabirds. Although levels of persistent ... -
Charophytes in warm springs on Svalbard (Spitsbergen): DNA barcoding identifies Chara aspera and Chara canescens with unusual morphological traits
(Peer reviewed; Journal article, 2019)The Troll springs are warm springs on Svalbard (Spitsbergen). Charophytes were collected in the years 1910, 1912, 1958, 1992/1993, and 2018. However, since the Chara samples showed unusual morphological traits, there were ... -
Chasing equilibrium passive sampling of hydrophobic organic compounds in water
(Journal article; Peer reviewed, 2019)We investigated a combination of approaches to extend the attainment of partition equilibria between silicone passive samplers (samplers) and surface or treated waste water towards more hydrophobic organic compounds (HOC). ... -
Chemical and biological recovery in acid-sensitive waters: trends and prognosis (ICP Waters report 119/2015)
(NIVA-rapport;6847, Research report, 2015)We present a trend analysis of surface water chemistry in in acid-sensitive lakes and rivers in Europe and North America, for the period 2000 to 2011, combined with a prognosis for water chemistry in Europe in 2020. Also, ... -
Chemical wastewater treatment: A concept for optimal dosing of coagulants
(NIVA-rapport;3713, Research report, 1997)A concept for optimisation of the coagulant dosing for domestic wastewater treatment is presented and evaluated. The concept is based on the real-time estimation of the optimal coagulant dosage using on on-line water quality ... -
Chemistry and fish status of 67 acidified lakes at the coast of Aust-Agder, Southern Norway, in relation to post-glacial marine deposits
(NIVA-rapport;2454, Research report, 1990)67 lakes in a 0-15 km wide coastal zone within Aust-Agder County in Southern Norway have been investigated. The area receives 1,5 g S/m² and, 1,7 g N/m² as wet deposition. All lakes had about the same concentration of ...