DOI: 10.1016/j.atmosenv.2017.07.007
Scopus记录号: 2-s2.0-85025131848
论文题名: Comparison of ultraviolet absorbance and NO-chemiluminescence for ozone measurement in wildfire plumes at the Mount Bachelor Observatory
作者: Gao H ; , Jaffe D ; A
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2017
卷: 166 起始页码: 224
结束页码: 233
语种: 英语
英文关键词: NO-chemiluminescence
; Ozone
; UV photometer
; Wildfire
Scopus关键词: Carbon
; Carbon monoxide
; Chemiluminescence
; Nitric oxide
; Observatories
; Ozone
; Particles (particulate matter)
; Photometers
; Photometry
; Sea level
; Aerosol scattering
; Federal reference methods
; Linear correlation
; Ozone measurements
; Particulate Matter
; Ultrafine particle
; Ultraviolet absorbance
; Wildfire
; Fires
; carbon monoxide
; nitric oxide
; ozone
; absorbance
; aerosol
; carbon monoxide
; comparative study
; correlation
; luminescence
; measurement method
; nitric oxide
; observatory
; ozone
; particulate matter
; plume
; regression analysis
; smoke
; ultraviolet radiation
; wildfire
; aerosol
; ambient air
; analyzer
; Article
; chemoluminescence
; intermethod comparison
; particulate matter
; photometer
; plume
; priority journal
; ultraviolet radiation
; water vapor
; Cascade Range
; Mount Bachelor
; Oregon
; United States
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: The goal of this paper is to evaluate the accuracy of the commonly used ozone (O3) instrument (the ultraviolet (UV) photometer) against a Federal Reference Method (Nitric Oxide –chemiluminescence) for ozone measurement in wildfire smoke plumes. We carried out simultaneous ozone measurement with two UV O3 photometers and one nitric oxide–chemiluminescence (NO-CL) ozone detectors during wildfire season (Aug. 1–Sept. 30) in 2015 at the Mount Bachelor Observatory (MBO, 2763 m above mean sea level, Oregon, USA). The UV O3 shows good agreement and excellent correlation to NO-CL O3, with linear regression slopes close to unity and R2 of 0.92 for 1-h average data and R2 of 0.93 for O3 daily maximum 8-h average (MDA8). During this two-month period we identified 35 wildfire events. Ozone enhancements in those wildfire plumes measured by NO-CL O3 and UV O3 monitors also show good agreement and excellent linear correlation, with a slope and R2 of 1.03 and 0.86 for O3 enhancements (ΔO3) and 1.00 and 0.98 for carbon monoxide (CO)-normalized ozone enhancement ratios (ΔO3/ΔCO), respectively. Overall, the UV O3 was found to have a positive bias of 4.7 ± 2.8 ppbv compared to the NO-CL O3. The O3 bias between NO-CL O3 and UV O3 is independent of wildfire plume tracers such as CO, particulate matter (PM1), aerosol scattering, and ultrafine particles. The results demonstrate that the UV O3 absorbance method is reliable, even in highly concentrated wildfire plumes. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82651
Appears in Collections: 气候变化事实与影响
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作者单位: University of Washington Bothell, School of Science, Technology, Engineering and Mathematics, 18115 Campus Way NE, Bothell, WA, United States; University of Washington, Department of Atmospheric Sciences, 408 ATG Building, Box 351640, Seattle, WA, United States
Recommended Citation:
Gao H,, Jaffe D,A. Comparison of ultraviolet absorbance and NO-chemiluminescence for ozone measurement in wildfire plumes at the Mount Bachelor Observatory[J]. Atmospheric Environment,2017-01-01,166