Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017JD027316 |
Observations of isocyanate, Amide, Nitrate, and Nitro Compounds From an Anthropogenic biomass burning Using a Tof-CIMS | |
Priestley, Michael1; Le Breton, Michael1,2; Bannan, Thomas J.1; Leather, Kimberly E.1; Bacak, Asan1; Reyes-Villegas, Ernesto1; De Vocht, Frank3; Shallcross, Beth M. A.4; Brazier, Toby5; Khan, M. Anwar5; Allan, James1,6; Shallcross, Dudley E.5; Coe, Hugh1; Percival, Carl J.1,7 | |
2018-07-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2018 |
卷号 | 123期号:14页码:7687-7704 |
文章类型 | Article |
语种 | 英语 |
国家 | England; Sweden; USA |
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. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000441965400037 |
WOS关键词 | IONIZATION MASS-SPECTROMETER ; POLYCYCLIC AROMATIC-HYDROCARBONS ; PERSISTENT ORGANIC POLLUTANTS ; ION PROTON-TRANSFER ; HYDROGEN-CYANIDE ; TRACE GASES ; CENTRAL LONDON ; OH RADICALS ; AIR-QUALITY ; EMISSIONS |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | 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/34362 |
专题 | 气候变化 |
作者单位 | 1.Univ Manchester, Ctr Atmospner Sci, Sch Earth & Environm Sci, Manchester, Lancs, England; 2.Univ Gothenburg, Dept Chem & Mol Biol, Gothenburg, Sweden; 3.Univ Bristol, Sch Social & Community Med, Bristol, Avon, England; 4.Univ Manchester, Div Pharm & Optometry, Manchester, Lancs, England; 5.Univ Bristol, Sch Chem, Bristol, Avon, England; 6.Univ Manchester, Natl Ctr Atmospher Sci, Manchester, Lancs, England; 7.Jet Prop Lab, Pasadena, CA 91109 USA |
推荐引用方式 GB/T 7714 | Priestley, Michael,Le Breton, Michael,Bannan, Thomas J.,et al. Observations of isocyanate, Amide, Nitrate, and Nitro Compounds From an Anthropogenic biomass burning Using a Tof-CIMS[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2018,123(14):7687-7704. |
APA | Priestley, Michael.,Le Breton, Michael.,Bannan, Thomas J..,Leather, Kimberly E..,Bacak, Asan.,...&Percival, Carl J..(2018).Observations of isocyanate, Amide, Nitrate, and Nitro Compounds From an Anthropogenic biomass burning Using a Tof-CIMS.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,123(14),7687-7704. |
MLA | Priestley, Michael,et al."Observations of isocyanate, Amide, Nitrate, and Nitro Compounds From an Anthropogenic biomass burning Using a Tof-CIMS".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 123.14(2018):7687-7704. |
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