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In vivo microsampling to capture the elusive exposome
Loss and/or degradation of small molecules during sampling, sample transportation and storage can adversely impact biological interpretation of metabolomics data. In this study,... -
Improving air quality model predictions of organic species using...
his study assesses the impact of revised volatile organic compound (VOC) and organic aerosol (OA) emissions estimates in the GEM-MACH (Global Environmental Multiscale–Modelling... -
Improved satellite retrievals of NO2 and SO2 over the Canadian oil sands and...
Satellite remote sensing is increasingly being used to monitor air quality over localized sources such as the Canadian oil sands. Following an initial study, significantly low... -
Impacts and effects indicators of atmospheric deposition of major pollutants...
HIGHLIGHTS • Atmospheric deposition of major pollutants is briefly reviewed. • Ecosystem impacts from atmospheric deposition are summarized. • Effects indicators from... -
How important is biomass burning in Canada to mercury contamination?
Wildfire frequency has increased in past four decades in Canada and is expected to increase in future as a result of climate change (Wotton et al., 2010). Mercury (Hg) emissions... -
High‐Resolution Mapping of Nitrogen Dioxide With TROPOMI; First Results and...
TROPOspheric Monitoring Instrument (TROPOMI), on-board the Sentinel-5 Precurser satellite, is a nadir-viewing spectrometer measuring reflected sunlight in the ultraviolet,... -
Heterocyclic aromatics in petroleum coke, snow, lake sediments and air...
The aromatic fractions of snow, lake sediment, and air samples collected during 2011–2014 in the Athabasca oil sands region were analyzed using two-dimensional gas... -
First Results from the Oil Sands Passive Air Monitoring Network for...
Results are reported from an ongoing passive air monitoring study for polycyclic aromatic compounds (PACs) in the Athabasca oil sands region in Alberta, Canada. Polyurethane... -
Fine-sediment Dynamics; Towards an Improved understanding of sediment...
Using Ells River, Alberta, Canada bed sediments, this study aims to determine (1) the erosion, transport, and deposition characteristics of cohesive bottom sediments, and (2)... -
Evaluation of the particle infiltration efficiency of three passive samplers...
Highlights •The particle infiltration efficiencies (PIEs) of 4 common air samplers were evaluated. •Online spectrophotometer was used to measure PIEs for ambient 250–4140 nm... -
Estimates of Exceedances of Critical Loads for Acidifying Deposition in...
Estimates of potential harmful effects on ecosystems in the Canadian provinces of Alberta and Saskatchewan due to acidifying deposition were calculated, using a 1-year... -
Erosion potential of dynamic ice breakup in Lower Athabasca River. Part II;...
Highlights •Methodology is developed for analysis of unique field data set on ice breakup processes. •Analysis quantifies key hydrodynamic variables during the breakup event.... -
Episodic acidification of 5 rivers in Canada's oil sands during snowmelt; a...
Highlights • Surface water acidification during snowmelt was assessed using 25 years of automated data from Canada’s oil sands region. • Surface water acidification occurred in... -
Emissions Preparation and Analysis for Multiscale Air Quality Modelling over...
The oil sands (OS) of Alberta, Canada, which are classified as unconventional oil, are the third-largest oil reserves in the world. We describe here a 6-year effort to improve... -
Emissions databases for polycyclic aromatic compounds in the Canadian...
wo speciated and spatially resolved emissions databases for polycyclic aromatic compounds (PACs) in the Athabasca oil sands region (AOSR) were developed. The first database was... -
Elevated exposure, uptake and accumulation of polycyclic aromatic...
Highlights • Exposure of nestling tree swallows to PACs examined in the Athabasca Oil Sands • A complex mixture of 41 PACs detected in chicks' feces and accumulated in muscle •... -
Effects of projected climate on the hydrodynamic and sediment transport...
The potential effects of climate change on the hydrodynamic and sediment transport regime of the lower Athabasca River (LAR) in Alberta, Canada, is investigated. Future climate... -
Predictive Models for Estimating the Cumulative Effects of Human Development...
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Effects of multi-well plate incubation on embryo-larval development in the...
Fathead minnow embryos and larvae are frequently used in toxicology, including short-term embryo-only tests which often use small volumes of test solution. The effect that such... -
Ecological monitoring through harmonizing existing data; Lessons from the...
To accomplish the objectives of a long-term ecological monitoring program (LTEM), repurposing research data collected by other researchers is an alternative to original data...