Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-19-13871-2019 |
Estimation of NOx and SO2 emissions from Sarnia, Ontario, using a mobile MAX-DOAS (Multi-AXis Differential Optical Absorption Spectroscopy) and a NOx analyzer | |
Davis, Zoe Y. W.1; Baray, Sabour2; McLinden, Chris A.3; Khanbabakhani, Aida2; Fujs, William2; Csukat, Csilla2; Debosz, Jerzy4; McLaren, Robert2 | |
2019-11-19 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS
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ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2019 |
卷号 | 19期号:22页码:13871-13889 |
文章类型 | Article |
语种 | 英语 |
国家 | Canada |
英文摘要 | Sarnia, Ontario, experiences pollutant emissions disproportionate to its relatively small size. The small size of the city limits traditional top-down emission estimate techniques (e.g., satellite) but a low-cost solution for emission monitoring is the mobile MAX-DOAS (Multi-AXis Differential Optical Absorption Spectroscopy). Measurements were made using this technique from 21 March 2017 to 23 March 2017 along various driving routes to retrieve vertical column densities (VCDs) of NO2 and SO2 and to estimate emissions of NOx and SO2 from the Sarnia region. A novel aspect of the current study was the installation of a NOx analyzer in the vehicle to allow real time measurement and characterization of near-surface NOx/NO2 ratios across the urban plumes, allowing improved accuracy of NOx emission estimates. Confidence in the use of near-surface-measured NOx/NO2 ratios for estimation of NOx emissions was increased by relatively well-mixed boundary layer conditions. These conditions were indicated by similar temporal trends in NO2 VCDs and mixing ratios when measurements were sufficiently distant from the sources. Leighton ratios within transported plumes indicated peroxy radicals were likely disturbing the NO-NO2-O-3 photostationary state through VOC (volatile organic compound) oxidation. The average lower-limit emission estimate of NOx from Sarnia was 1.60 +/- 0.34 t h(-1) using local 10 m elevation wind-speed measurements. Our estimates were larger than the downscaled annual 2017 NPRI-reported (National Pollution Release Inventory) industrial emissions of 0.9 tNO(x) h(-1). Our lower-limit estimate of SO2 emissions from Sarnia was 1.81 +/- 0.83 tSO(2) h(-1), equal within uncertainty to the 2017 NPRI downscaled value of 1.85tSO(2) h(-1). Satellite-derived NO2 VCDs over Sarnia from the ozone monitoring instrument (OMI) were lower than mobile MAX-DOAS VCDs, likely due to the large pixel size relative to the city's size. The results of this study support the utility of the mobile MAX-DOAS method for estimating NOx and SO2 emissions in relatively small, highly industrialized regions, especially when supplemented with mobile NOx measurements. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000498638500002 |
WOS关键词 | ATHABASCA OIL SANDS ; TROPOSPHERIC NO2 ; ATMOSPHERIC AEROSOLS ; DERIVE INFORMATION ; URBAN ; LIFETIMES ; CITIES ; MODEL ; QUANTIFICATION ; RETRIEVAL |
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/224062 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.York Univ, Grad Program Earth & Space Sci, Toronto, ON M3J 1P3, Canada; 2.York Univ, Ctr Atmospher Chem, Toronto, ON M3J 1P3, Canada; 3.Environm & Climate Change Canada, Toronto, ON M3H 5T4, Canada; 4.Ontario Minist Environm Conservat & Pk, Air Qual Monitoring & Assessment Unit, Etobicoke, ON M9P 3V6, Canada |
推荐引用方式 GB/T 7714 | Davis, Zoe Y. W.,Baray, Sabour,McLinden, Chris A.,et al. Estimation of NOx and SO2 emissions from Sarnia, Ontario, using a mobile MAX-DOAS (Multi-AXis Differential Optical Absorption Spectroscopy) and a NOx analyzer[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2019,19(22):13871-13889. |
APA | Davis, Zoe Y. W..,Baray, Sabour.,McLinden, Chris A..,Khanbabakhani, Aida.,Fujs, William.,...&McLaren, Robert.(2019).Estimation of NOx and SO2 emissions from Sarnia, Ontario, using a mobile MAX-DOAS (Multi-AXis Differential Optical Absorption Spectroscopy) and a NOx analyzer.ATMOSPHERIC CHEMISTRY AND PHYSICS,19(22),13871-13889. |
MLA | Davis, Zoe Y. W.,et al."Estimation of NOx and SO2 emissions from Sarnia, Ontario, using a mobile MAX-DOAS (Multi-AXis Differential Optical Absorption Spectroscopy) and a NOx analyzer".ATMOSPHERIC CHEMISTRY AND PHYSICS 19.22(2019):13871-13889. |
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