نتایج جستجو برای: lake ontario

تعداد نتایج: 59377  

Journal: :Environment international 2013
Sarah B Gewurtz Sean M Backus Amila O De Silva Lutz Ahrens Alain Armellin Marlene Evans Susan Fraser Melissa Gledhill Paula Guerra Tom Harner Paul A Helm Hayley Hung Nav Khera Min Gu Kim Martha King Sum Chi Lee Robert J Letcher Pamela Martin Chris Marvin Daryl J McGoldrick Anne L Myers Magella Pelletier Joe Pomeroy Eric J Reiner Myriam Rondeau Marie-Claude Sauve Mark Sekela Mahiba Shoeib Daniel W Smith Shirley Anne Smyth John Struger Doug Spry Jim Syrgiannis Jasmine Waltho

In Canada, perfluoroalkyl acids (PFAAs) have been the focus of several monitoring programs and research and surveillance studies. Here, we integrate recent data and perform a multi-media assessment to examine the current status and ongoing trends of PFAAs in Canada. Concentrations of perfluorooctane sulfonate (PFOS), perfluorooctanoate (PFOA), and other long-chain perfluorocarboxylates (PFCAs) ...

Journal: :Applied and environmental microbiology 2011
George E Hannett Ward B Stone Stephen W Davis Danielle Wroblewski

The genetic relatedness of Clostridium botulinum type E isolates associated with an outbreak of wildlife botulism was studied using random amplification of polymorphic DNA (RAPD). Specimens were collected from November 2000 to December 2008 during a large outbreak of botulism affecting birds and fish living in and around Lake Erie and Lake Ontario. In our present study, a total of 355 wildlife ...

Journal: :Ecotoxicology and environmental safety 2015
Ariola Visha Nilima Gandhi Satyendra P Bhavsar George B Arhonditsis

Polychlorinated biphenyls (PCBs) and total mercury (THg) are two of the most prevalent contaminants, resulting in restrictive advisories on consuming fish from the Laurentian Great Lakes. The goal of this study is to examine the temporal trends of the two contaminants in walleye (Sander vitreus) and lake trout (Salvelinus namaycush) for Lake Ontario. We employed Bayesian inference techniques to...

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