Results 1 to 10 of about 124,518 (168)

Using sentinel nodes to evaluate changing connectivity in a protected area network [PDF]

PeerJ, 2023
It has been recognized that well-connected networks of protected areas are needed to halt the continued loss of global biodiversity. The recently signed Kunming-Montreal biodiversity agreement commits countries to protecting 30% of terrestrial lands in ...
Paul O’Brien, Natasha Carr, Jeff Bowman   +2 more
doaj   +2 more sources

Spatially Resolved Source Apportionment of Industrial VOCs Using a Mobile Monitoring Platform

Atmosphere, 2022
Industrial emissions of volatile organic compounds (VOCs) directly impact air quality downwind of facilities and contribute to regional ozone and secondary organic aerosol production. Positive matrix factorization (PMF) is often used to apportion VOCs to
Robert M. Healy, Uwayemi M. Sofowote, Jonathan M. Wang, Qingfeng Chen, Aaron Todd   +4 more
doaj   +1 more source

Baseline Air Monitoring of Fine Particulate Matter and Trace Elements in Ontario’s Far North, Canada

Applied Sciences, 2021
Large mineral deposits have been discovered in Ontario’s Far North and are being considered for further development. Particulate matter and trace elements can be emitted from potential mining activities and these air pollutants are associated with health
Yushan Su, Uwayemi Sofowote, Anthony Munoz, Michael Noble, Chris Charron, Aaron Todd, Valbona Celo, Ewa Dabek-Zlotorzynska, Alla Kryukova, Teresa Switzer   +9 more
doaj   +1 more source

Sensitivity of Source Apportionment of Ambient PM_2.5-Bound Elements to Input Concentration Data

Atmosphere, 2023
This study investigated the sensitivity of the positive matrix factorization (PMF) model using concentrations of PM2.5-bound elements in Windsor, Ontario, Canada.
Tianchu Zhang, Yushan Su, Jerzy Debosz, Michael Noble, Anthony Munoz, Xiaohong Xu   +5 more
doaj   +1 more source

Continuous Measurements and Source Apportionment of Ambient PM_2.5-Bound Elements in Windsor, Canada

Atmosphere, 2023
Ambient fine particulate matter (PM2.5) levels in Windsor, Ontario, Canada, are impacted by local emissions and regional/transboundary transport input and also attributable to secondary formation.
Tianchu Zhang, Yushan Su, Jerzy Debosz, Michael Noble, Anthony Munoz, Xiaohong Xu   +5 more
doaj   +1 more source

Long-path measurements of pollutants and micrometeorology over Highway 401 in Toronto [PDF]

Atmospheric Chemistry and Physics, 2017
Traffic emissions contribute significantly to urban air pollution. Measurements were conducted over Highway 401 in Toronto, Canada, with a long-path Fourier transform infrared (FTIR) spectrometer combined with a suite of micrometeorological ...
Y. You, R. M. Staebler, S. G. Moussa, Y. Su, T. Munoz, C. Stroud, J. Zhang, M. D. Moran   +7 more
doaj   +1 more source

An efficient and affordable laboratory method to produce and sustain high concentrations of microcystins by Microcystis aeruginosa

MethodsX, 2019
Microcystis aeruginosa is a cosmopolitan cyanobacteria that continues to jeopardize freshwater ecosystem services by releasing the hepatotoxin microcystin, which can, in some cases, cause death to aquatic fauna and even humans.
René S. Shahmohamadloo, Xavier Ortiz Almirall, Claire Holeton, Richard Chong-Kit, David G. Poirier, Satyendra P. Bhavsar, Paul K. Sibley   +6 more
doaj   +1 more source

Temporal variations and trend of ground-level ozone based on long-term measurements in Windsor, Canada [PDF]

Atmospheric Chemistry and Physics, 2019
This study investigates temporal variations and long-term (1996–2015) trends of ground-level O3 (ozone) and its precursors, NOx (nitrogen oxides), and volatile organic compounds in Windsor, Ontario, Canada.
X. Xu, T. Zhang, Y. Su
doaj   +1 more source

Heavy metals in the near-road environment: Results of semi-continuous monitoring of ambient particulate matter in the greater Toronto and Hamilton area

Atmospheric Environment: X, 2019
Six heavy metals - Mn, Fe, Cu, Zn, Se, and Pb among other elemental species were monitored in ambient PM2.5 at three near-road ambient air monitoring locations in the Greater Toronto and Hamilton Area (GTHA) with semi-continuous X-ray fluorescence (XRF ...
Uwayemi M. Sofowote, Linda M. Di Federico, Robert M. Healy, Jerzy Debosz, Yushan Su, Jonathan Wang, Anthony Munoz   +6 more
doaj   +1 more source

Traffic-related air pollution near roadways: discerning local impacts from background [PDF]

Atmospheric Measurement Techniques, 2019
Adverse health outcomes related to exposure to air pollution have gained much attention in recent years, with a particular emphasis on traffic-related pollutants near roadways, where concentrations tend to be most severe.
N. Hilker, J. M. Wang, C.-H. Jeong, R. M. Healy, U. Sofowote, J. Debosz, Y. Su, M. Noble, A. Munoz, G. Doerksen, L. White, C. Audette, D. Herod, J. R. Brook, J. R. Brook, G. J. Evans   +15 more
doaj   +1 more source