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Intercomparison 1529: pH, Conductivity, Alkalinity, NO3-N, Cl, SO4, Ca, Mg, Na, K, TOC, Al, Fe, Mn, Cd, Pb, Cu, Ni, and Zn
(NIVA-rapport;6910, Research report, 2015)81 laboratories were invited to participate in the current intercomparison. Of these, 40 from 19 different countries accepted the invitation and 39 of them submitted results to the Organization. Two sample sets were prepared: ... -
Intercomparison 1731: pH, Conductivity, Alkalinity, NO3-N, Cl, SO4, Ca, Mg, Na, K, TOC, Al, Fe, Mn, Cd, Pb, Cu, Ni, and Zn
(NIVA-rapport;7207, Research report, 2017)88 laboratories were invited to participate in the current intercomparison. Of these, 38 from 21 different countries accepted the invitation and all of them submitted results to the Organization. Two sample sets were ... -
Intercomparison 1832: pH, Conductivity, Alkalinity, NO3-N, Cl, SO4, Ca, Mg, Na, K, TOC, Tot-P, Al, Fe, Mn, Cd, Pb, Cu, Ni, and Zn
(NIVA-rapport;7316, Research report, 2018)In the current edition, 32 laboratories from 19 countries were included in the 2019 ICP-Waters intercomparison. Similar to earlier intercomparisons, two sample sets were prepared: one for the determination of major ions ... -
Intercomparison 1933: pH, Conductivity, Alkalinity, NO3-N, Cl, SO4, Ca, Mg, Na, K, TOC, Tot-P, Al, Fe, Mn, Cd, Pb, Cu, Ni, and Zn
(NIVA-rapport;7445, Research report, 2019)A total of 36 laboratories from 19 different countries accepted the invitation to join the ICP-Waters chemical intercomparison, and 33 laboratories from 16 different countries successfully reported results. Two sets of ... -
Intercomparison 2034: pH, Conductivity, Alkalinity, NO3-N, Cl, SO4, Ca, Mg, Na, K, TOC, Tot-P, Al, Fe, Mn, Cd, Pb, Cu, Ni, and Zn
(NIVA-rapport;7621, Research report, 2021)Twenty-one laboratories from 13 countries accepted the invitation to join the ICP Waters chemical intercomparison and successfully reported results. The lower number of participants this year likely resulted from the global ... -
Intercomparison 2135: pH, Conductivity, Alkalinity, NO3-N, Cl, SO4, Ca, Mg, Na, K, TOC, Tot-P, Al, Fe, Mn, Cd, Pb, Cu, Ni, and Zn
(NIVA-rapport;7681, Research report, 2021)Thirty-two laboratories from 17 countries accepted the invitation to join the ICP Waters chemical intercomparison and thirty of these successfully reported their results. Two sets of samples were prepared and successfully ... -
Intercomparison 2236: pH, Conductivity, Alkalinity, NO3-N, Cl, SO3, Ca, Mg, Na, K, TOC, Tot-P, Tot-N, Al, Fe, Mn, Cd, Pb, Cu, Ni, and Zn.
(NIVA-rapport;7792-2022, Research report, 2022)Twenty-six laboratories from 15 countries accepted the invitation to join the ICP Waters chemical intercomparison and twenty-three of these successfully reported their results. Two sets of samples were prepared and distributed ... -
Intercomparison 2337: pH, Conductivity, Alkalinity, NO3-N, Cl, SO4, Ca, Mg, Na, K, TOC, Tot-P, Tot-N, Al, Fe, Mn, Cd, Pb, Cu, Ni, and Zn.
(NIVA-rapport;7918-2023, Research report, 2023)Twenty laboratories from fifteen countries accepted the invitation to join the ICP Waters chemical intercomparison. Two sets of samples were prepared and distributed to the participants: one for the determination of ions ... -
An interlaboratory comparison exercise for the determination of microplastics in standard sample bottles
(Peer reviewed; Journal article, 2019)An interlaboratory comparison exercise was conducted to assess the consistency of microplastic quantification across several laboratories. The test samples were prepared by mixing one liter seawater free of plastics, ... -
Interlaboratory Comparison of Extractable Organofluorine Measurements in Groundwater and Eel (Anguilla rostrata): Recommendations for Methods Standardization
(Peer reviewed; Journal article, 2023)Research on per- and polyfluoroalkyl substances (PFAS) frequently incorporates organofluorine measurements, particularly because they could support a class-based approach to regulation. However, standardized methods for ... -
Interlaboratory Validation of Toxicity Testing Using the Duckweed Lemna minor Root-Regrowth Test
(Peer reviewed; Journal article, 2022)The common duckweed (Lemna minor), a freshwater monocot that floats on the surfaces of slow-moving streams and ponds, is commonly used in toxicity testing. The novel Lemna root- regrowth test is a toxicity test performed ... -
International Intercomparison of In Situ Chlorophyll-a Measurements for Data Quality Assurance of the Swedish Monitoring Program
(Peer reviewed; Journal article, 2022)Chlorophyll-a is an essential climate variable. Chlorophyll-a in situ measurements are usually used for the validation of satellite images. Previous intercomparisons have shown that there can be substantial differences ... -
The interplay between terrestrial organic matter and benthic macrofauna: Framework, synthesis, and perspectives
(Peer reviewed; Journal article, 2023)Ecosystems are shaped by physical, chemical, and biological drivers, which affect the quality and quantity of basal energy sources, with impacts that cascade to higher trophic levels. In coastal, shelf, and marine habitats, ... -
Intertidal regions changing coastal alkalinity: The Wadden Sea-North Sea tidally coupled bioreactor
(Journal article; Peer reviewed, 2019)In this study, we successfully implemented a total alkalinity (TA) analyzer in a flow‐through setup, in combination with a FerryBox. The high‐frequency (10 min) measurements along our ship's route revealed that in coastal ... -
Introduced European minnow Phoxinus phoxinus in alpine lakes may increase total mercury concentration in brown trout Salmo trutta
(Peer reviewed; Journal article, 2021)In Norway, the cyprinid European minnow Phoxinus phoxinus has been spread far outside its previous natural distribution area, with lots of establishments in mountain lakes where brown trout Salmo trutta originally was the ... -
Introduced European smelt (Osmerus eperlanus) affects food web and fish community in a large Norwegian lake
(Journal article; Peer reviewed, 2018)Invasive and introduced fishes can affect recipient ecosystems and native species via altered competitive and predatory interactions, potentially leading to top-down and bottom-up cascading impacts. Here, we describe a ... -
Introduction to the Special Issue – Flows and Practices: The Politics of Integrated Water Resources Management (IWRM) in Southern Africa
(Journal article; Peer reviewed, 2016)For the past two decades, IWRM has been actively promoted by water experts as well as multilateral and bilateral donors who have considered it to be a crucial way to address global water management problems. IWRM has been ... -
Invasion impacts and dynamics of a European-wide introduced species
(Peer reviewed; Journal article, 2022)Globalization has led to the introduction of thousands of alien species worldwide. With growing impacts by invasive species, understanding the invasion process remains critical for predicting adverse effects and informing ... -
Investigating societal attitudes towards marine ecosystem restoration
(Peer reviewed; Journal article, 2020)Globally, direct and indirect human impacts have led to the widespread degradation of marine ecosystems. The resulting loss of habitat and marine biodiversity has led to the increased impetus for marine ecosystem restoration ... -
Investigation of new brominated and organophosphorous flame retardants in Svalbard benthic marine food web; FlammePlank
(NIVA-rapport;7261, Research report, 2018)The aim of this pilot-study was to use silicone rubber-based passive samplers to measure novel brominated flame retardants (nBFRs), polybrominated diphenyl ethers (PBDEs) and dechlorane plus (DP) in seawater and air around ...