Browsing NIVA Open Access Archive by Author "Vogt, Rolf David"
Now showing items 1-18 of 18
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Assessing Heavy Metal Pollution of the Largest Nature Reserve in Tianjin City, China
Zhou, Bin; Xing, Meinan; Liao, Haiqing; Li, Hui; Vogt, Rolf David; Xu, Weijie; Jia, Liyun; Tian, Jie; Meng, Jianli; Jing, Jiangang; Liu, Dan (Peer reviewed; Journal article, 2022)Beidagang Wetland (BW) Nature Reserve is centrally situated in Tianjin City, experiencing an extreme industrial development. This study uses index characteristic analysis systems for assessing the individual and combined ... -
Browning of Scottish surface water sources exposed to climate change
Haaland, Ståle Leif; Eikebrokk, Bjørnar; Riise, Gunnhild; Vogt, Rolf David (Peer reviewed; Journal article, 2023)Levels of dissolved natural organic matter (DNOM) are increasing in our boreal watercourses. This is manifested by an apparent increase in its yellow to brown colour of the water, i.e., browning. Sound predictions of future ... -
Distinguishing between Sources of Natural Dissolved Organic Matter (DOM) Based on Its Characteristics
Vogt, Rolf David; Porcal, Petr; Hejzlar, Josef; Paule‐Mercado, Ma. Cristina; Haaland, Ståle Leif; Gundersen, Cathrine Brecke; Orderud, Geir Inge; Eikebrokk, Bjørnar (Peer reviewed; Journal article, 2023)Increasing levels of dissolved organic matter (DOM) in watercourses in the northern hemisphere are mainly due to reduced acid rain, climate change, and changes in agricultural practices. However, their impacts vary in time ... -
Evaluation of the IKEU programme. An evaluation of the programme’s organization, its organs, financing and contributions
Kaste, Øyvind; Schartau, Ann Kristin; de Wit, Heleen; Vogt, Rolf David (NIVA-rapport;7895-2023, Research report, 2023)IKEU (Integrated Studies of the Effects of Liming Acidified Waters) is the national monitoring programme for long-term effects of liming in Sweden. The main focus of IKEU is to study the long-term effects of liming on lakes ... -
How do major ions and fulvic acid affect dissolved inorganic phosphorus adsorption onto suspended particulate matter in estuarine environment?
Wang, Shiyu; Vogt, Rolf David; Wang, Qiuliang; Mei, Pengyu; Lu, Xueqiang (Peer reviewed; Journal article, 2024)The adsorption and desorption of Dissolved Inorganic Phosphorus (DIP) onto Suspended Particulate Matter (SPM) are of key importance for the biogeochemistry in estuarine system. These processes are susceptible to changes ... -
In Inland China, Rice, Rather than Fish, Is the Major Pathway for Methylmercury Exposure
Zhang, Hua; Feng, Xinbin; Larssen, Thorjørn; Qiu, Guangle; Vogt, Rolf David (Journal article; Peer reviewed, 2010)Background: Fish consumption is considered the primary pathway of methylmercury (MeHg) exposure for most people in the world. However, in the inland regions of China, most of the residents eat little fish, but they live ... -
Increasing Trends of Legacy and Emerging Organic Contaminants in a Dated Sediment Core From East-Africa
Nipen, Maja; Vogt, Rolf David; Bohlin-Nizzetto, Pernilla; Borgå, Katrine; Mwakalapa, Eliezer Brown; Borgen, Anders; Schlabach, Martin; Christensen, Guttorm N; Mmochi, Aviti John; Breivik, Knut (Peer reviewed; Journal article, 2022)Temporal trends of industrial organic contaminants can show how environmental burdens respond to changes in production, regulation, and other anthropogenic and environmental factors. Numerous studies have documented such ... -
Kinetics and Size Effects on Adsorption of Cu(II), Cr(III), and Pb(II) Onto Polyethylene, Polypropylene, and Polyethylene Terephthalate Microplastic Particles
Han, Xiaoxin; Wang, Shiyu; Yu, Xue; Vogt, Rolf David; Feng, Jianfeng; Zhai, Lifang; Ma, Weiqi; Zhu, Lin; Lu, Xueqiang (Peer reviewed; Journal article, 2021)Due to its small size, large specific surface area and hydrophobicity, microplastics, and the adsorbed contaminants may together cause potential negative effects on ecosystems and human beings. In this study, kinetics and ... -
Mercury in air and soil on an urban-rural transect in East Africa
Nipen, Maja; Jørgensen, Susanne Jøntvedt; Bohlin-Nizzetto, Pernilla; Borgå, Katrine; Breivik, Knut; Mmochi, Aviti J; Mwakalapa, Eliezer; Quant, M. Isabel; Schlabach, Martin; Vogt, Rolf David; Wania, Frank (Peer reviewed; Journal article, 2022)There are large knowledge gaps concerning concentrations, sources, emissions, and spatial trends of mercury (Hg) in the atmosphere in developing regions of the Southern Hemisphere, particularly in urban areas. Filling these ... -
Metoder for beregning av vannets syrenøytraliserende kapasitet (ANC) for klassifisering av forsuringstilstand
Vogt, Rolf David; Garmo, Øyvind Aaberg; Schartau, Ann Kristin; Haaland, Ståle Leif (Journal article, 2023)ANC er nøkkelparameteren for å vurdere endringer i kjemisk vannkvalitet med endringer i sur nedbør, klima og arealbruk. Imidlertid har parameteren lav presisjon, siden den er basert på ladningsbalansen mellom mange målte ... -
Ny brønnbåtkunnskap - biologiske risikofaktorer ved bruk av brønnbåt til transport og behandling av laks (NYBRØK - 901788)
Hess-Erga, Ole-Kristian; Calabrese, Sara; Vogt, Rolf David; Steigum, Endre; Svendsen, Frida Sol; Furseth, Kamilla; Storsul, Torolf; Dalum, Alf Seljenes; Stensby-Skjærvik, Silje; Rønnestad, Ivar; Segadal, Kåre; Løseth, Kim; Sandstad, Alf Reidar; Andersen, Linda; Eide, Susanne Håvardstun; Handegård, Reidar (NIVA-rapport;8005-2024, Research report, 2024)Moderate (400 μg/l) og høye konsentrasjoner (800 μg/l) av totalsink (Zn) under simulert ferskvannsbehandling med bløtt vann, kan påføre fisken for stor belastning. De fysiologiske responsene er ikke tilstrekkelige til å ... -
Overvåking av langtransportert forurenset luft og nedbør. Årsrapport – Vannkjemiske effekter 2021
Vogt, Rolf David; Skancke, Liv Bente (NIVA-rapport;7778-2022, Research report, 2023)Rapporten presenterer resultater fra overvåking i 2021 av vannkjemi i forsuringsfølsomme vannforekomster. Overvåkingen omfattet; 78 tidstrendsjøer, 6 små innsjøer nær Nikel, 6 feltforskningsstasjoner og 2 elver. The report ... -
Overvåking av langtransportert forurenset luft og nedbør. Årsrapport – Vannkjemiske effekter 2022
Vogt, Rolf David; Skancke, Liv Bente (NIVA-rapport;7900-2023, Research report, 2023)Rapporten presenterer resultater fra overvåking i 2022 av vannkjemi i forsuringsfølsomme vannforekomster. Overvåkingen omfattet; 78 tidstrendsjøer, 6 små innsjøer på Jarfjordfjellet, 6 feltforskningsstasjoner og 2 elvestasjoner. -
Overvåking i referanseelver Oppsummering av data for perioden 2017-2023
Eriksen, Tor Erik; Thrane, Jan-Erik; Myrvold, Knut Marius; Grung, Merete; Vogt, Rolf David; Velle, Gaute; Persson, Jonas; Kemp, Joanna Lynn (NIVA-rapport;8008-2024, Research report, 2024)Overvåkingsprogrammet «Overvåking i referanseelver» undersøker miljøtilstanden i norske elver og bekker med antatt liten grad av menneskelig påvirkning. Denne rapporten sammenstiller resultater og vurderer økologisk tilstand ... -
Sampling of dissolved inorganic (DIP) and organic phosphorus (DOP) compounds in natural water by Diffusive Gradients in Thinfilms (DGT)
Røyset, Oddvar; Vogt, Rolf David; Mohr, Christian Wilhelm; Parekh, Neha Amit (NIVA-rapport;6590, Research report, 2014)This report presents results from the work package 1 (WP1) of the EUTROPIA project, funded by the Research Council of Norway (RCN). The goal of WP1 was to improve the fractionation methods for phosphorus (P) compounds in ... -
The technological development of drinking water treatment plants in the Czech Republic
Orderud, Geir Inge; Porcal, Petr; Eikebrokk, Bjørnar; Sláma, Jiří; Vogt, Rolf David; Hejzlar, Josef; Haaland, Ståle Leif (Peer reviewed; Journal article, 2023)Several actors have an impact on the quality of drinking water, but ultimately drinking water treatment plants (DWTPs) play a decisive role in ensuring that water quality complies with public regulations. Several developing ... -
Trends and patterns in surface water chemistry in Europe and North America between 1990 and 2020, with a focus on calcium
Vogt, Rolf David; Agnieszka, Kolada; Arle, Jens; Austnes, Kari; Van Dam, Herman; Futter, Martyn; Fölster, Jens; Gundersen, Cathrine Brecke; Higgins, Scott N.; Houle, Daniel; Hruska, Jakub; Monteith, Don; Paterson, Andrew; Rogora, Michela; Sample, James Edward; Stoddard, John; Steingruber, Sandra; Ulanczyk, Rafak; Vuorenmaa, Jussi; de Wit, Heleen (NIVA-rapport;7931-2024, Research report, 2024)The report presents trends in major anions and cations, pH, TOC and bicarbonate in surface waters in Europe and North America from 1990 to 2020. Special attention is given to trends in calcium, which showed some unexpected ... -
Var forurensning fra utfyllingsarbeid ved Northern Lights landanlegg årsaken til at mye laks døde etter avlusning i oppdrettsanlegget Ljøsøy N?
Beyer, Jonny; Meland, Sondre; Hess-Erga, Ole-Kristian; Vogt, Rolf David; Drivdal, Magnus Bjørn; Thoen, Even; Åtland, Åse (NIVA-rapport;7904-2023, Research report, 2023)NIVA har på oppdrag fra Northern Lights’ landanlegg (NLL) utført en faglig vurdering av hendelsen der unormalt mye oppdrettslaks døde hos Blom Fiskeoppdrett (BF) etter en ferskvannsbehandling i brønnbåt i juni 2021. ...