DOI: 10.1002/2015MS000473
Scopus记录号: 2-s2.0-84945454639
论文题名: Dry deposition of polycyclic aromatic compounds to various land covers in the Athabasca oil sands region
作者: Zhang L ; , Cheng I ; , Wu Z ; , Harner T ; , Schuster J ; , Charland J ; -P ; , Muir D ; , Parnis J ; M
刊名: Journal of Advances in Modeling Earth Systems
ISSN: 19422466
出版年: 2015
卷: 7, 期: 3 起始页码: 1339
结束页码: 1350
语种: 英语
英文关键词: Aromatic compounds
; Aromatic hydrocarbons
; Aromatization
; Atmospheric chemistry
; Budget control
; Deposition
; Hydrocarbons
; Meteorological problems
; Oil fields
; Oil sands
; Athabasca oil sands
; Atmospheric depositions
; Atmospheric dry deposition
; Dibenzothiophenes
; Dry deposition velocities
; Inferential methods
; Polycyclic aromatic compounds
; Polycyclic aromatic hydrocarbons (PAHS)
; Polycyclic aromatic hydrocarbons
; atmospheric deposition
; dry deposition
; forest canopy
; grass
; land cover
; oil sand
; PAH
; shrub
; wet deposition
; Alberta
; Athabasca Oil Sands
; Athabasca River
; Canada
英文摘要: A framework was developed to estimate dry deposition of polycyclic aromatic compounds (PACs), including 17 polycyclic aromatic hydrocarbons (PAHs), 21 alkylated PAHs, and 5 parent and alkylated dibenzothiophenes (DBTs), to various land covers surrounding three monitoring sites in the Athabasca oil sands region. Modeled dry deposition velocities for various gaseous PACs and over various land covers were mostly in the range of 0.01-0.5 cm s-1 with median and annual mean values between 0.08 and 0.24 cm s-1, comparable with literature values obtained from field studies. Annual dry deposition of the sum of PAHs was estimated to range from 330 to 560 μg m-2 over forested canopies surrounding the three sites and from 270 to 490 μg m-2 over grass and shrubs. The corresponding values are 3920-5380 and 2850-4920 μg m-2 for the sum of 21 alkylated PAHs, and are 230-1120 and 450-930 μg m-2 for the sum of 5 DBTs. The three monitoring sites are situated nearby the Athabasca River, and the direct annual atmospheric dry deposition to water surface was estimated to range from 350 to 500, 3170 to 4530, and 170 to 840 μg m-2 for PAHs, alkylated PAHs, and DBTs, respectively. Alkylated PAHs contributed 80% of the total dry and 60% of the total wet deposition budget, suggesting the importance of including this group of PAHs in the atmospheric deposition budget estimation for subsequent ecosystem impact studies. Key Points: A framework is developed for estimating PACs dry deposition Dry deposition is more important than wet deposition on annual basis Alkylated PAHs dominated PACs deposition budget in the oil sands region © 2015. The Authors and Her Majesty the Queen in Right of Canada. Reproduced with the permission of the Minister of the Environment.Journal of Advances in Modeling Earth Systems, published by Wiley Periodicals, Inc., on behalf of the American Geophysical Union. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/75988
Appears in Collections: 影响、适应和脆弱性 气候变化与战略
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作者单位: Air Quality Research Division, Science and Technology Branch, Environment Canada, Canada; Aquatic Contaminants Research Division, Science and Technology Branch, Environment Canada, Canada; Department of Chemistry and Canadian Centre for Environmental Modelling and Chemistry, Trent University, Peterborough, Ontario, Canada
Recommended Citation:
Zhang L,, Cheng I,, Wu Z,et al. Dry deposition of polycyclic aromatic compounds to various land covers in the Athabasca oil sands region[J]. Journal of Advances in Modeling Earth Systems,2015-01-01,7(3)