Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-18-3457-2018 |
Emissions databases for polycyclic aromatic compounds in the Canadian Athabasca oil sands region - development using current knowledge and evaluation with passive sampling and air dispersion modelling data | |
Qiu, Xin1; Cheng, Irene2; Yang, Fuquan1; Horb, Erin3; Zhang, Leiming2; Harner, Tom2 | |
2018-03-08 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS
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ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2018 |
卷号 | 18期号:5页码:3457-3467 |
文章类型 | Article |
语种 | 英语 |
国家 | Canada |
英文摘要 | Two speciated and spatially resolved emissions databases for polycyclic aromatic compounds (PACs) in the Athabasca oil sands region (AOSR) were developed. The first database was derived from volatile organic compound (VOC) emissions data provided by the Cumulative Environmental Management Association (CEMA) and the second database was derived from additional data collected within the Joint Canada-Alberta Oil Sands Monitoring (JOSM) program. CALPUFF modelling results for atmospheric polycyclic aromatic hydrocarbons (PAHs), alkylated PAHs, and dibenzothiophenes (DBTs), obtained using each of the emissions databases, are presented and compared with measurements from a passive air monitoring network. The JOSM-derived emissions resulted in better model-measurement agreement in the total PAH concentrations and for most PAH species concentrations compared to results using CEMA-derived emissions. At local sites near oil sands mines, the percent error of the model compared to observations decreased from 30% using the CEMA-derived emissions to 17% using the JOSM-derived emissions. The improvement at local sites was likely attributed to the inclusion of updated tailings pond emissions estimated from JOSM activities. In either the CEMA-derived or JOSM-derived emissions scenario, the model underestimated PAH concentrations by a factor of 3 at remote locations. Potential reasons for the disagreement include forest fire emissions, re-emissions of previously deposited PAHs, and long-range transport not considered in the model. Alkylated PAH and DBT concentrations were also significantly underestimated. The CALPUFF model is expected to predict higher concentrations because of the limited chemistry and deposition modelling. Thus the model underestimation of PACs is likely due to gaps in the emissions database for these compounds and uncertainties in the methodology for estimating the emissions. Future work is required that focuses on improving the PAC emissions estimation and speciation methodologies and reducing the uncertainties in VOC emissions which are subsequently used in PAC emissions estimation. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000426918800007 |
WOS关键词 | JAPANESE MEDAKA ; HYDROCARBONS ; ALBERTA ; SNOW ; TOXICITY ; RATIOS ; PAHS ; RAIN |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/30853 |
专题 | 地球科学 |
作者单位 | 1.Novus Environm Inc, Guelph, ON N1G 4T2, Canada; 2.Environm & Climate Change Canada, Sci & Technol Branch, Air Qual Res Div, Toronto, ON M3H 5T4, Canada; 3.Novus Environm Inc, Calgary, AB T2R 1K7, Canada |
推荐引用方式 GB/T 7714 | Qiu, Xin,Cheng, Irene,Yang, Fuquan,et al. Emissions databases for polycyclic aromatic compounds in the Canadian Athabasca oil sands region - development using current knowledge and evaluation with passive sampling and air dispersion modelling data[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2018,18(5):3457-3467. |
APA | Qiu, Xin,Cheng, Irene,Yang, Fuquan,Horb, Erin,Zhang, Leiming,&Harner, Tom.(2018).Emissions databases for polycyclic aromatic compounds in the Canadian Athabasca oil sands region - development using current knowledge and evaluation with passive sampling and air dispersion modelling data.ATMOSPHERIC CHEMISTRY AND PHYSICS,18(5),3457-3467. |
MLA | Qiu, Xin,et al."Emissions databases for polycyclic aromatic compounds in the Canadian Athabasca oil sands region - development using current knowledge and evaluation with passive sampling and air dispersion modelling data".ATMOSPHERIC CHEMISTRY AND PHYSICS 18.5(2018):3457-3467. |
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