Results 21 to 30 of about 185,089,399 (155)

Guidelines and criteria for water quality management in Ontario [PDF]

, 1974
In 1967, the Ontario Water Resources Commission announced its Policy Guidelines for Water Quality Control in the Province of Ontario. This publication contains a re-statement of the guidelines and introduces water quality criteria for various uses ...
Ontario Ministry of the Environment
core   +1 more source

Towards a downstream passage solution for out-migrating American eel (Anguilla rostrata) on the St. Lawrence River

Aquaculture and Fisheries, 2021
There is a need to develop safe and effective downstream passage for diadromous anguillid eels on large rivers, where the combination of physical screening and bypass structures that is used to protect eel on smaller rivers is infeasible. The Eel Passage
Thomas C. Pratt, David R. Stanley, Scott Schlueter, Jake K.L. La Rose, Andrew Weinstock, Paul T. Jacobson   +5 more
doaj   +1 more source

Lake Simcoe Basin - A water quality and use study [PDF]

, 1975
Lake Simcoe due to its proximity to the Province's largest population centres, its generally excellent water quality and its suitability for a wide variety of water-oriented activities is one of Southern Ontario's prime cottaging and ...
Ontario Ministry of the Environment
core   +1 more source

Compositional space: A guide for environmental chemists on the identification of persistent and bioaccumulative organics using mass spectrometry

Environment International, 2019
Since 2001, twenty-eight halogenated groups of persistent organic pollutants (POPs) have been banned or restricted by the Stockholm Convention. Identifying new POPs among the hundreds of thousands of anthropogenic chemicals is a major challenge that is ...
Xianming Zhang, Robert A. Di Lorenzo, Paul A. Helm, Eric J. Reiner, Philip H. Howard, Derek C.G. Muir, John G. Sled, Karl J. Jobst   +7 more
doaj   +1 more source

The Michigan–Ontario Ozone Source Experiment (MOOSE): An Overview

Atmosphere, 2023
The Michigan–Ontario Ozone Source Experiment (MOOSE) is an international air quality field study that took place at the US–Canada Border region in the ozone seasons of 2021 and 2022. MOOSE addressed binational air quality issues stemming from lake breeze
Eduardo P. Olaguer, Yushan Su, Craig A. Stroud, Robert M. Healy, Stuart A. Batterman, Tara I. Yacovitch, Jiajue Chai, Yaoxian Huang, Matthew T. Parsons   +8 more
doaj   +1 more source

Environmental levels and toxicological potencies of a novel mixed halogenated carbazole

Emerging Contaminants, 2016
The present work involves an extensive analytical and toxicological description of a recently identified mixed halogenated carbazole found in sediment samples, 1,8-dibromo-3,6-dichloro-9H-carbazole (BCCZ).
Miren Pena-Abaurrea, Matthew Robson, Sri Chaudhuri, Nicole Riddell, Robert McCrindle, Brock Chittim, Robert Parette, Un-Ho Jin, Stephen Safe, David Poirier, Ralph Ruffolo, Richard Dyer, Rachael Fletcher, Paul A. Helm, Eric J. Reiner   +14 more
doaj   +1 more source

Extended spectrum β lactamase-producing Enterobacteriaceae shedding by race horses in Ontario, Canada

BMC Veterinary Research, 2020
Background We aimed to investigate the prevalence, molecular epidemiology and prevalence factors for Extended Spectrum β-Lactamase-producing Enterobacteriaceae (ESBL-E) shedding by race horses.
Anat Shnaiderman-Torban, Shiri Navon-Venezia, Yossi Paitan, Holly Archer, Wiessam Abu Ahmad, Darryl Bonder, Erez Hanael, Israel Nissan, Gal Zizelski Valenci, Scott J. Weese, Amir Steinman   +10 more
doaj   +1 more source

Cross-Platform Comparison of Amino Acid Metabolic Profiling in Three Model Organisms Used in Environmental Metabolomics

Metabolites, 2023
Environmental metabolomics is a promising approach to study pollutant impacts to target organisms in both terrestrial and aquatic environments. To this end, both nuclear magnetic resonance (NMR)- and mass spectrometry (MS)-based methods are used to ...
Jessica C. D’eon, Brian P. Lankadurai, André J. Simpson, Eric J. Reiner, David G. Poirier, Greg C. Vanlerberghe, Myrna J. Simpson   +6 more
doaj   +1 more source

Scale and watershed features determine lake chemistry patterns across physiographic regions in the far north of Ontario, Canada

Journal of Limnology, 2016
Changes in the far north of Ontario (>50°N latitude), like climate warming and increased industrial development, will have direct effects on watershed characteristics and lakes.
Josef MacLeod, Wendel (Bill) Keller, Andrew M. Paterson, Richard D. Dyer, John M. Gunn   +4 more
doaj   +1 more source

Influence of polymorphisms in the vascular endothelial growth factor gene on allograft rejection after kidney transplantation: a meta-analysis [version 1; peer review: 2 approved]

F1000Research, 2021
Background: Reported associations of allograft rejection in kidney transplant patients with VEGF single nucleotide polymorphisms (SNPs) have been inconsistent between studies, which prompted a meta-analysis to obtain more precise estimates.
Hamdi Jarjanazi, Adis Tasanarong, Phuntila Tharabenjasin, Noel Pabalan, Thanee Eiamsitrakoon   +4 more
doaj   +1 more source