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  • 1.
    Klánová, Jana
    et al.
    Research Centre for Toxic Compounds in the Environment (RECETOX), Faculty of Science, Masaryk University, Brno, Czech Republic.
    Diamond, Miriam
    Department of Geography, University of Toronto, Toronto, Canada.
    Jones, Kevin
    Lancaster Environment Centre, Lancaster University, Lancaster, United Kingdom.
    Lammel, Gerhard
    Research Centre for Toxic Compounds in the Environment (RECETOX), Faculty of Science, Masaryk University, Brno, Czech Republic; Max Planck Institute for Chemistry, Mainz, Germany.
    Lohmann, Rainer
    Graduate School of Oceanography, University of Rhode Island, Narragansett, United States.
    Pirrone, Nicola
    Institute of Atmospheric Pollution Research (CNR-IIA), National Research Council of Italy, Monterotondo Stazione, Rome, Italy.
    Scheringer, Martin
    Institute for Chemical and Bioingeneering, Swiss Federal Institute of Technology, Zürich, Switzerland.
    Balducci, Catia
    Institute of Atmospheric Pollution Research (CNR-IIA), National Research Council of Italy, Monterotondo Stazione, Rome, Italy.
    Bidleman, Terry
    Chemistry Department, Umeå University, Umeå, Sweden.
    Bláha, Karel
    Ministry of Environment of the Czech Republic, Praha, Czech Republic.
    Bláha, Ludek
    Research Centre for Toxic Compounds in the Environment (RECETOX), Faculty of Science, Masaryk University, Brno, Czech Republic.
    Booij, Kees
    Royal Netherlands Institute for Sea Research (NIOZ), Ab Texel, The Netherlands.
    Bouwman, Henk
    Department of Zoology, School of Environmental Sciences and Development, North-West University, Potchefstroom, South Africa.
    Breivik, Knut
    Norwegian Institute for Air Research, Kjeller, Norway.
    Eckhardt, Sabine
    Department of Chemistry, University of Oslo, Oslo, Norway.
    Fiedler, Heidelore
    United Nations Environment Programme, DTIE/Chemicals Branch, Châtelaine GE, Switzerland.
    Garrigues, Philippe
    Institut des Sciences Moléculaires, UMR 52 55 CNRS, Université de Bordeaux, Bordeaux, France.
    Harner, Tom
    Environment Canada, Science and Technology Branch, Toronto, Canada.
    Holoubek, Ivan
    Research Centre for Toxic Compounds in the Environment (RECETOX), Faculty of Science, Masaryk University, Brno, Czech Republic.
    Hung, Hayley
    Environment Canada, Science and Technology Branch, Toronto, Canada.
    MacLeod, Matthew
    Department of Applied Environmental Science, Stockholm University, Stockholm, Sweden.
    Magulova, Katarina
    United Nations Environment Programme, Stockholm Convention Secretariat, Châtelaine GE, Switzerland.
    Mosca, Silvia
    Institute of Atmospheric Pollution Research (CNR-IIA), National Research Council of Italy, Rome, Italy.
    Pistocchi, Alberto
    GECOsistema Srl, Cesena, Italy.
    Simonich, Staci
    Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, United States.
    Smedes, Foppe
    Deltares, Geo-environmental Research Laboratory, Utrecht, Segrate, Netherlands.
    Stephanou, Euripides
    Environmental Chemical Processes Laboratory, Dept. of Chemistry, University of Crete, Voutes-Heraklion, Greece.
    Sweetman, Andy
    Lancaster Environment Centre, Lancaster University, Bailrigg, Lancaster, United Kingdom.
    Sebková, Katerina
    Ministry of Environment of the Czech Republic, Praha, Czech Republic.
    Venier, Marta
    School of Public and Environmental Affairs, Indiana University, Bloomington, United States.
    Vighi, Marco
    Department of Environmental Sciences, University of Milano Bicocca, Milano, Italy.
    Vrana, Branislav
    Research Centre for Toxic Compounds in the Environment (RECETOX), Faculty of Science, Masaryk University, Brno, Czech Republic.
    Wania, Frank
    Department of Physical and Environmental Sciences, University of Toronto, Scarborough, Toronto, Canada.
    Weber, Roland
    POPs Environmental Consulting, Goeppingen, Germany.
    Weiss, Peter
    Federal Environment Agency, Vienna, Austria.
    Identifying the Research and Infrastructure Needs for the Global Assessment of Hazardous Chemicals Ten Years after Establishing the Stockholm Convention2011In: Environmental Science and Technology, ISSN 0013-936X, E-ISSN 1520-5851, Vol. 45, no 18, p. 7617-7619Article in journal (Refereed)
  • 2.
    Parajulee, Abha
    et al.
    Department of Physical and Environmental Sciences, University of Toronto Scarborough, Toronto, Canada.
    Lei, Ying Duan
    Department of Physical and Environmental Sciences, University of Toronto Scarborough, Toronto, Canada.
    Cao, Xiaoshu
    Department of Physical and Environmental Sciences, University of Toronto Scarborough, Toronto, Canada.
    McLagan, David S.
    Department of Physical and Environmental Sciences, University of Toronto Scarborough, Toronto, Canada.
    Yeung, Leo W. Y.
    Örebro University, School of Science and Technology. Department of Chemistry, University of Toronto, Toronto, Canada .
    Mitchell, Carl P. J.
    Department of Physical and Environmental Sciences, University of Toronto Scarborough, Toronto, Canada.
    Wania, Frank
    Department of Physical and Environmental Sciences, University of Toronto Scarborough, Toronto, Canada.
    Comparing winter-time herbicide behavior and exports in urban, rural, and mixed-use watersheds2018In: Environmental Science: Processes & Impacts, ISSN 2050-7887, E-ISSN 2050-7895, Vol. 20, no 5, p. 767-779Article in journal (Refereed)
    Abstract [en]

    The presence of pesticides in streams in winter, five to six years following bans on their municipal use suggests that complicated transport behaviour, such as subsurface retention and/or accumulation of pesticides and its release during storms, could be important for understanding recovery time frames following bans or legislation that aim to reduce chemical inputs. We investigated late fall and winter dynamics of four herbicides in paired urban and rural watersheds in Toronto, Canada during rainfall and snowmelt. The range of average concentrations and loads of the sum of atrazine, metolachlor, 2,4-D and mecoprop overlapped in the two types of watersheds, with slightly higher average concentrations in the rural watershed. Relatively consistent herbicide concentration-discharge patterns (i. e. dilution) were observed in the urban sub-watersheds during rainfall, while concentration-discharge patterns were much more variable in the rural watershed. This suggests relatively uniform transport pathways across the urban sub-watersheds, compared to the rural watershed. Concentration-discharge patterns of the neutral herbicides atrazine and metolachlor were similar in both watersheds during snowmelt, though varying discharge patterns resulted in divergent timings of peak concentrations. In contrast, the acidic pesticides 2,4-D and mecoprop, which are primarily associated with urban uses, showed much more variable behavior across both watersheds and merit further investigation. Overall, this work highlights the need to consider pesticide dynamics throughout the year in order to more thoroughly assess the longterm efficacy of legislation governing their use.

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