Oil sands development and its impact on atmospheric wet deposition of air pollutants to the Athabasca Oil Sands Region, Alberta, Canada.
Characterization of air pollutant deposition resulting from Athabasca oil sands development is necessary to assess risk to humans and the environment. To investigate this we collected event-based wet deposition during a pilot study in 2010-2012 at the AMS 6 site 30 km from the nearest upgrading facility in Fort McMurray, AB, Canada. Sulfate, nitrate and ammonium deposition was (kg/ha) 1.96, 1.60 and 1.03, respectively. Trace element pollutant deposition ranged from 2 × 10(-5) - 0.79 and exhibited the trend Hg < Se < As < Cd < Pb < Cu < Zn < S. Crustal element deposition ranged from 1.4 × 10(-4) - 0.46 and had the trend: La < Ce < Sr < Mn < Al < Fe < Mg. S, Se and Hg demonstrated highest median enrichment factors (130-2020) suggesting emissions from oil sands development, urban activities and forest fires were deposited. High deposition of the elements Sr, Mn, Fe and Mg which are tracers for soil and crustal dust implies land-clearing, mining and hauling emissions greatly impacted surrounding human settlements and ecosystems.
University of Michigan Air Quality Laboratory, Ann Arbor, MI, USA. Electronic address: lynam@umich.edu.
Mary M
MM
Lynam
University of Michigan Air Quality Laboratory, Ann Arbor, MI, USA.
J Timothy
JT
Dvonch
University of Michigan Air Quality Laboratory, Ann Arbor, MI, USA.
James A
JA
Barres
University of Michigan Air Quality Laboratory, Ann Arbor, MI, USA.
Masako
M
Morishita
Biosphere Solutions, Calgary, Alberta, Canada.
Allan
A
Legge
Wood Buffalo Environmental Association, Fort McMurray, Alberta, Canada.
Kevin
K
Percy
D000393:Air Pollutants / Q000032:analysis*; D000397:Air Pollution / Q000032:analysis*; D000416:Alberta; D004391:Dust / Q000032:analysis; D004784:Environmental Monitoring; D061329:Oil and Gas Fields / Q000737:chemistry*; D010865:Pilot Projects; D012987:Soil / Q000737:chemistry*
D000393:Air Pollutants; D004391:Dust; D012987:Soil
Athabasca Oil Sands Region; Atmospheric wet deposition; Crustal elements; Fugitive dust; Oil sands development; Priority pollutants