Search Results - "GARDFELDT, Katarina"

Microplastics in sea ice and seawater beneath ice floes from the Arctic Ocean by Kanhai, La Daana K., Gardfeldt, Katarina, Krumpen, Thomas, Thompson, Richard C., O’Connor, Ian

“…Within the past decade, an alarm was raised about microplastics in the remote and seemingly pristine Arctic Ocean. To gain further insight about the issue,…”
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Microplastics in sub-surface waters of the Arctic Central Basin by Kanhai, La Daana K., Gårdfeldt, Katarina, Lyashevska, Olga, Hassellöv, Martin, Thompson, Richard C., O'Connor, Ian

“…Polar oceans, though remote in location, are not immune to the accumulation of plastic debris. The present study, investigated for the first time, the…”
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Deep sea sediments of the Arctic Central Basin: A potential sink for microplastics by Kanhai, La Daana K., Johansson, Carina, Frias, J.P.G.L., Gardfeldt, Katarina, Thompson, Richard C., O’Connor, Ian

“…Deep sea sediments have emerged as a potential sink for microplastics in the marine environment. The discovery of microplastics in various environmental…”
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Distribution of total mercury and methylated mercury species in Central Arctic Ocean water and ice by Jonsson, Sofi, Nerentorp Mastromonaco, Michelle G., Gårdfeldt, Katarina, Mason, Robert P.

“…The central Arctic Ocean remains largely unexplored when it comes to the presence and cycling of mercury and its methylated forms including mono- and…”
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Acoustic Mapping of Thermohaline Staircases in the Arctic Ocean by Stranne, Christian, Mayer, Larry, Weber, Thomas C., Ruddick, Barry R., Jakobsson, Martin, Jerram, Kevin, Weidner, Elizabeth, Nilsson, Johan, Gårdfeldt, Katarina

“…Although there is enough heat contained in inflowing warm Atlantic Ocean water to melt all Arctic sea ice within a few years, a cold halocline limits upward…”
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A deep scattering layer under the North Pole pack ice by Snoeijs-Leijonmalm, Pauline, Gjøsæter, Harald, Ingvaldsen, Randi B., Knutsen, Tor, Korneliussen, Rolf, Ona, Egil, Skjoldal, Hein Rune, Stranne, Christian, Mayer, Larry, Jakobsson, Martin, Gårdfeldt, Katarina

“…•A deep scattering layer (DSL) was discovered in the Central Arctic Ocean (CAO).•The DSL occurs at 300–600 m of depth in the Atlantic water layer of the…”
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Mercury flux over West Antarctic Seas during winter, spring and summer by Nerentorp Mastromonaco, Michelle G., Gårdfeldt, Katarina, Langer, Sarka

“…For the first time elemental mercury in air and surface seawater was measured continuously in the remote seas of western Antarctica. A major contributor to…”
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Seasonal Study of Mercury Species in the Antarctic Sea Ice Environment by Nerentorp Mastromonaco, Michelle G, Gårdfeldt, Katarina, Langer, Sarka, Dommergue, Aurélien

“…Limited studies have been conducted on mercury concentrations in the polar cryosphere and the factors affecting the distribution of mercury within sea ice and…”
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Seasonal and spatial evasion of mercury from the western Mediterranean Sea by Nerentorp Mastromonaco, Michelle G, Gårdfeldt, Katarina, Wängberg, Ingvar

“…Continuous measurements of gaseous elemental mercury (GEM) in air and dissolved gaseous mercury (DGM) in surface seawater were performed during two…”
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Ship-Based Measurements of Atmospheric Mercury Concentrations over the Baltic Sea by Hoglind, Hanna, Eriksson, Sofia, Gardfeldt, Katarina

“…Mercury is a toxic pollutant emitted from both natural sources and through human activities. A global interest in atmospheric mercury has risen ever since the…”
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Introduction to the special issue in the marine Environment by Horvat, Milena, Knoery, Joel, Gårdfeldt, Katarina, Sprovieri, Francesca

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Determination of Henry's law constant for elemental mercury by ANDERSSON, Maria E, GARDFELDT, Katarina, WÄNGBERG, Ingvar, STRÖMBERG, Dan

“…The assessment of the global mercury cycle involves estimations of the evasion of mercury form oceanic waters. In such estimations Henry's law constant is…”
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Air–sea exchange of volatile mercury in the North Atlantic Ocean by Andersson, Maria E., Sommar, Jonas, Gårdfeldt, Katarina, Jutterström, Sara

“…Part of the Beringia 2005 expedition covered the North Atlantic Ocean. During this passage, dissolved gaseous mercury (DGHg) in seawater and atmospheric…”
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Enhanced concentrations of dissolved gaseous mercury in the surface waters of the Arctic Ocean by Andersson, M.E., Sommar, J., Gårdfeldt, K., Lindqvist, O.

“…During an almost three months long expedition in the Arctic Ocean, the Beringia 2005, dissolved gaseous mercury (DGM) was measured continuously in the surface…”
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Biogenic halocarbons in young Arctic sea ice and frost flowers by Granfors, Anna, Andersson, Maria, Chierici, Melissa, Fransson, Agneta, Gårdfeldt, Katarina, Torstensson, Anders, Wulff, Angela, Abrahamsson, Katarina

“…The fate of halocarbons, naturally produced volatile halogenated organic compounds, in young Arctic sea ice was studied to better understand the role of sea…”
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A kinetic study of the gas-phase reaction between the hydroxyl radical and atomic mercury by Sommar, Jonas, Gårdfeldt, Katarina, Strömberg, Dan, Feng, Xinbin

“…The atom is the dominating species of mercury in the atmosphere. Its oxidation processes are of great interest since it is mainly oxidised mercury that…”
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Seasonal and daily variation of mercury evasion at coastal and off shore sites from the Mediterranean Sea by Andersson, Maria E., Gårdfeldt, Katarina, Wängberg, Ingvar, Sprovieri, Francesca, Pirrone, Nicola, Lindqvist, Oliver

“…Dissolved gaseous mercury (DGM) was measured continuously using two newly developed techniques and a manual technique. The continuous techniques were based on…”
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A kinetic study on the abiotic methylation of divalent mercury in the aqueous phase by Gårdfeldt, Katarina, Munthe, John, Strömberg, Dan, Lindqvist, Oliver

“…The mechanism and kinetics of the formation of methylmercury from an experimental solution containing divalent mercury and acetic acid has been investigated…”
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Oxidation of atomic mercury by hydroxyl radicals and photoinduced decomposition of methylmercury in the aqueous phase by Gårdfeldt, Katarina, Sommar, Jonas, Strömberg, Dan, Feng, Xinbin

“…The rate constant for Hg 0+ . OH, k Hg 0+ . OH =(2.4±0.3)×10 9 M −1 s −1 , in the aqueous phase was determined using a relative rate technique with methyl…”
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description of an automatic continuous equilibrium system for the measurement of dissolved gaseous mercury by Andersson, Maria E, Gårdfeldt, Katarina, Wängberg, Ingvar

“…A novel continuous equilibrium system with high time resolution, i.e. every ten minutes, was developed to sample and determine dissolved gaseous mercury (DGM)…”
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