Výsledky vyhledávání - "Monika Pućko"

Current use pesticide and legacy organochlorine pesticide dynamics at the ocean-sea ice-atmosphere interface in resolute passage, Canadian Arctic, during winter-summer transition

Autor: Alexis Burt, Gary A. Stern, Terry F. Bidleman, Nicolas-X. Geilfus, Liisa M. Jantunen, Robie W. Macdonald, Søren Rysgaard, Monika Pućko, David G. Barber

Publikováno v: Pućko, M, Stern, G A, Burt, A E, Jantunen, L M, Bidleman, T F, Macdonald, R W, Barber, D G, Geilfus, N X & Rysgaard, S 2017, ' Current use pesticide and legacy organochlorine pesticide dynamics at the ocean-sea ice-atmosphere interface in resolute passage, Canadian Arctic, during winter-summer transition ', Science of the Total Environment, vol. 580, pp. 1460-1469 . https://doi.org/10.1016/j.scitotenv.2016.12.122

Here, we present the first detailed analysis of processes by which various current use pesticides (CUPs) and legacy organochlorine pesticides (OCPs) are concentrated in melt ponds that form on Arctic sea ice in the summer, when surface snow is meltin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0d90a7ec171e03352b7bb02b61289317
https://doi.org/10.1016/j.scitotenv.2016.12.122

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When will α-HCH disappear from the western Arctic Ocean?

Autor: Wojciech Walkusz, Monika Pućko, Gary A. Stern, David G. Barber, Robie W. Macdonald, Bruno Rosenberg

Publikováno v: Journal of Marine Systems. 127:88-100

Water column concentrations of α-HCH were measured in the southern Beaufort Sea as part of the Canadian Arctic Shelf Exchange Study (CASES; 2003–04), the Circumpolar Flaw Lead System Study (CFL; 2007–08), and in the Mackenzie River during the 20

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a406103a47c015a556963657b1205909
https://doi.org/10.1016/j.jmarsys.2011.09.007

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Ikaite crystal distribution in winter sea ice and implications for CO2 system dynamics

Autor: Daniel Frank Mcginnis, Jens K. Ehn, David G. Barber, Monika Pućko, M. Cooper, Jakob Sievers, Nicolas-Xavier Geilfus, Ronnie N. Glud, Feiyue Wang, D.H. Søgaard, Søren Rysgaard, Karl M. Attard, Jody W. Deming, Tim Papakyriakou, Kunuk Lennert

Publikováno v: The Cryosphere. 7:707-718

The precipitation of ikaite (CaCO3 ⋅ 6H2O) in polar sea ice is critical to the efficiency of the sea ice-driven carbon pump and potentially important to the global carbon cycle, yet the spatial and temporal occurrence of ikaite within the ice is po

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ede852774d81369428f2b7d86272fbe2
https://doi.org/10.5194/tc-7-707-2013

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Importance of Arctic Zooplankton Seasonal Migrations for α-Hexachlorocyclohexane Bioaccumulation Dynamics

Autor: Gary A. Stern, Robie W. Macdonald, C. Fuchs, David G. Barber, Monika Pućko, W. Walkusz

Publikováno v: Environmental Science & Technology. 47:4155-4163

Like most zooplankton, Calanus hyperboreus undergoes seasonal migration spending late spring and summer grazing at the surface and the rest of the year in diapause at depth. As a result, in the Arctic Ocean this copepod resides for part of the year i

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2d3f3ce6aedfe16176386b8c7db9d9ab
https://doi.org/10.1021/es304472d

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Organophosphate Esters in Canadian Arctic Air: Occurrence, Levels and Trends

Autor: Liisa M. Jantunen, Hayley Hung, Henrik Li, Monika Pućko, Alexis Burt, Roxana Sühring, Gary A. Stern, Miriam Diamond, Fiona Wong, Martin Scheringer, P. Fellin

Publikováno v: Environmental sciencetechnology. 50(14)

Fourteen organophosphate esters (OPEs) were measured in the filter fraction of 117 active air samples from yearly ship-based sampling campaigns (2007-2013) and two land-based stations in the Canadian Arctic, to assess trends and long-range transport

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::99589f0abebf8addea133e9a8c3f6800
https://pubmed.ncbi.nlm.nih.gov/27309668

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Mechanisms and Implications of α-HCH Enrichment in Melt Pond Water on Arctic Sea Ice

Autor: K.-A. Warner, C. Fuchs, Monika Pućko, Gary A. Stern, David G. Barber, Robie W. Macdonald

Publikováno v: Environmental Science & Technology. 46:11862-11869

During the summer of 2009, we sampled 14 partially refrozen melt ponds and the top 1 m of old ice in the pond vicinity for α-hexachlorocyclohexane (α-HCH) concentrations and enantiomer fractions (EFs) in the Beaufort Sea. α-HCH concentrations were

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0cd2c4ee065bf799fd7d2b930e024474
https://doi.org/10.1021/es303039f

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Air−Water Exchange of Anthropogenic and Natural Organohalogens on International Polar Year (IPY) Expeditions in the Canadian Arctic

Autor: Fiona Wong, Terry F. Bidleman, Monika Pućko, Tim Papakyriakou, Liisa M. Jantunen, Gary A. Stern, Ralf M. Staebler

Publikováno v: Environmental Science & Technology. 45:876-881

Shipboard measurements of organohalogen compounds in air and surface seawater were conducted in the Canadian Arctic in 2007-2008. Study areas included the Labrador Sea, Hudson Bay, and the southern Beaufort Sea. High volume air samples were collected

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e2b1cf0c04fa1203656a1d1389aff656
https://doi.org/10.1021/es1018509

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The international polar year (IPY) circumpolar flaw lead (CFL) system study: The importance of brine processes for α‐ and γ‐hexachlorocyclohexane (HCH) accumulation or rejection in sea ice

Autor: Monika Pućko, David G. Barber, Robie W. Macdonald, Gary A. Stern, B. Rosenberg

Publikováno v: Atmosphere-Ocean. 48:244-262

We present evidence that both geophysical and thermodynamic conditions in sea ice are important in understanding pathways of accumulation or rejection of hexachlorocyclohexanes (HCHs). α‐ and γ‐HCH concentrations and α‐HCH enantiomer fractio

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e3f944b6eaf62e947eb406dbc45a8281
https://doi.org/10.3137/oc318.2010

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Pan-Arctic concentrations of mercury and stable isotope ratios of carbon (δ(13)C) and nitrogen (δ(15)N) in marine zooplankton

Autor: Karen L. Foster, Louis Fortier, Corinne Pomerleau, Gary A. Stern, Monika Pućko, Robie W. Macdonald

Publikováno v: The Science of the total environment.

Zooplankton play a central role in marine food webs, dictating the quantity and quality of energy available to upper trophic levels. They act as "keystone" species in transfer of mercury (Hg) up through the marine food chain. Here, we present the fir

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ec48e2f383c3816134ac6a3bf1949a45
https://pubmed.ncbi.nlm.nih.gov/26874765

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The delivery of organic contaminants to the Arctic food web: why sea ice matters

Autor: Søren Rysgaard, Fiona Wong, David G. Barber, Liisa M. Jantunen, Monika Pućko, Terry F. Bidleman, Gary A. Stern, Robie W. Macdonald

Publikováno v: Pucko, M, Stern, G, Macdonald, R, Jantunen, L, Bidleman, T, Wong, F, Barber, D & Rysgaard, S 2015, ' The delivery of organic contaminants to the Arctic food web: Why sea ice matters ', Science of the Total Environment, vol. 506-507, pp. 444-452 . https://doi.org/10.1016/j.scitotenv.2014.11.040

For decades sea ice has been perceived as a physical barrier for the loading of contaminants to the Arctic Ocean. We show that sea ice, in fact, facilitates the delivery of organic contaminants to the Arctic marine food web through processes that: 1)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3b2f2a581a7874981338d22a8230e135
https://pubmed.ncbi.nlm.nih.gov/25437762

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