globalchange  > 气候减缓与适应
DOI: 10.1002/2017JD027316
Scopus记录号: 2-s2.0-85050953717
论文题名:
Observations of Isocyanate, Amide, Nitrate, and Nitro Compounds From an Anthropogenic Biomass Burning Event Using a ToF-CIMS
作者: Priestley M.; Le Breton M.; Bannan T.J.; Leather K.E.; Bacak A.; Reyes-Villegas E.; De Vocht F.; Shallcross B.M.A.; Brazier T.; Anwar Khan M.; Allan J.; Shallcross D.E.; Coe H.; Percival C.J.
刊名: Journal of Geophysical Research: Atmospheres
ISSN: 2169897X
出版年: 2018
卷: 123, 期:14
起始页码: 7687
结束页码: 7704
语种: 英语
英文关键词: anthropogenic ; biomass burning ; bonfire night ; hydrogen cyanide ; ToF-CIMS
英文摘要: Anthropogenic biomass burning is poorly represented in models due to a lack of observational data but represents a significant source of short-lived toxic gases. Guy Fawkes Night (bonfire night) is a regular UK-wide event where open fires are lit and fireworks are set off on 5 November. Previous gas phase studies of bonfire night focus on persistent organic pollutants primarily using off-line techniques. Here the first simultaneous online gas phase measurements of several classes of compounds including isocyanates, amides, nitrates, and nitro-organics are made during bonfire night (2014) in Manchester, UK, using a time-of-flight chemical ionization mass spectrometer (ToF-CIMS) using iodide reagent ions. A shallow boundary layer and low wind speeds favor pollutant buildup with typical HCN, HNCO, and CH3NCO concentrations of tens of parts per thousand increasing by a factor of 13 to potentially harmful levels >1 ppb. Normalized excess mixing ratios relative to CO for a range of isocyanates and amides are reported for the first time. Using a HNCO:CO ratio of 0.1%, we distinguish emissions from flaming and smoldering combustion and report more accurate normalized excess mixing ratios for the distinct burning phases. While bonfire night is a highly polluting event, NO2 concentrations measured at this location are higher at other times, highlighting the importance of traffic as an NO2 emission source at this location. A risk communication methodology is used to equate enhancements in hourly averaged black carbon and NO2 concentrations caused by bonfire night as an equivalent of 26.1 passively smoked cigarettes. ©2018. The Authors.
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/113505
Appears in Collections:气候减缓与适应

Files in This Item:

There are no files associated with this item.


作者单位: Centre for Atmospheric Science, School of Earth and Environmental Sciences, University of Manchester, Manchester, United Kingdom; Now at Department of Chemistry and Molecular Biology, University of Gothenburg, Göteborg, Sweden; School of Social and Community Medicine, University of Bristol, Bristol, United Kingdom; Division of Pharmacy and Optometry, University of Manchester, Manchester, United Kingdom; School of Chemistry, University of Bristol, Bristol, United Kingdom; National Centre for Atmospheric Science, University of Manchester, Manchester, United Kingdom; Now at Jet Propulsion Laboratory, Pasadena, CA, United States

Recommended Citation:
Priestley M.,Le Breton M.,Bannan T.J.,et al. Observations of Isocyanate, Amide, Nitrate, and Nitro Compounds From an Anthropogenic Biomass Burning Event Using a ToF-CIMS[J]. Journal of Geophysical Research: Atmospheres,2018-01-01,123(14)
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Priestley M.]'s Articles
[Le Breton M.]'s Articles
[Bannan T.J.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Priestley M.]'s Articles
[Le Breton M.]'s Articles
[Bannan T.J.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Priestley M.]‘s Articles
[Le Breton M.]‘s Articles
[Bannan T.J.]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.