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TitleEvaporative emissions from tailings ponds are not likely an important source of airborne PAHs in the Athabasca oil sands region
AuthorAhad, J M E; Gammon, P R; Gobeil, C; Jautzy, J; Krupa, S; Savard, M M; Studabaker, W B
SourceProceedings of the National Academy of Sciences USA; Proceedings of the National Academy of Sciences of the United States of America vol. 111, no. 24, E2439, 2014 p. 1, https://doi.org/10.1073/pnas.1403515111
Year2014
Alt SeriesEarth Sciences Sector, Contribution Series 20130471
PublisherNational Academy of Sciences
Documentserial
Lang.English
Mediapaper; on-line; digital
File formatpdf
ProvinceAlberta
NTS74D/13; 74D/14; 74E/03; 74E/04
AreaAthabasca River; Fort McMurray
Lat/Long WENS-112.0000 -111.2500 57.2500 56.7500
Subjectsfossil fuels; environmental geology; hydrocarbons; hydrocarbon gases; hydrocarbon migration; environmental studies; environmental analysis; Athabasca Oil Sands
ProgramCoal & Oil Resources Environmental Sustainability, Environmental Geoscience
Summary(Plain Language Summary, not published)
In a recent paper published in the highly prestigious journal Proceedings of the National Academy of Sciences USA, the authors Parajulee and Wania used a multimedia fate model to argue that emissions of polycyclic aromatic hydrocarbons (PAHs) in environmental impact assessments conducted to approve developments in the Athabasca oil sands region (AOSR) are likely underestimated. The discrepancy between their model and reported emissions was mainly attributed to "indirect" evaporative releases of PAHs from tailing ponds. With their model, however, Parajulee and Wania have missed the significance of a previously reported important source of mining-related PAHs in the AOSR "fugitive dust" and have likely overstated the importance of evaporative releases from tailings ponds. We therefore believe that a letter to the journal is necessary so that an unjustified and unsupported focus on evaporative losses as a source for airborne PAHs in the AOSTR is not propagated throughout the scientific community.
GEOSCAN ID293685