Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2016JD026227 |
Source characterization of volatile organic compounds in the Colorado Northern Front Range Metropolitan Area during spring and summer 2015 | |
Abeleira, A.1; Pollack, I. B.1,2; Sive, B.3; Zhou, Y.2; Fischer, E. V.2; Farmer, D. K.1 | |
2017-03-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
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ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2017 |
卷号 | 122期号:6 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Hourly measurements of 46 volatile organic compounds (VOCs) from the Boulder Atmospheric Observatory in Erie, CO, were collected over 16weeks in spring and summer 2015. Average VOC reactivity (1.2s(-1) in spring and 2.4s(-1) in summer) was lower than most other U.S. urban sites. Positive matrix factorization analysis identified five VOC factors in the spring, corresponding to sources from (1) long-lived oil and natural gas (ONG-long lived), (2) short-lived oil and natural gas (ONG-short lived), (3) traffic, (4) background, and (5) secondary chemical production. In the summer, an additional biogenic factor was dominated by isoprene. While ONG-related VOCs were the single largest contributor (40-60%) to the calculated VOC reactivity with hydroxyl radicals (OH) throughout the morning in both spring and summer, the biogenic factor substantially enhanced afternoon and evening (2-10P.M. local time) VOC reactivity (average of 21%; maxima of 49% of VOC reactivity) during summertime. These results contrast with a previous summer 2012 campaign which showed that biogenics contributed only 8% of VOC reactivity on average. The interannual differences suggest that the role of biogenic VOCs in the Colorado Northern Front Range Metropolitan Area (NFRMA) varies with environmental conditions such as drought stress. Overall, the NFRMA was more strongly influenced by ONG sources of VOCs than other urban and suburban regions in the U.S. |
英文关键词 | volatile organic compounds VOC reactivity oil and natural gas troposphere: composition and chemistry constituent sources and sinks pollution: urban and regional biosphere atmosphere interactions |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000399655200024 |
WOS关键词 | POSITIVE MATRIX FACTORIZATION ; C-1-C-5 ALKYL NITRATES ; NATURAL-GAS OPERATIONS ; ENGLAND AIR-QUALITY ; SAN-JOAQUIN VALLEY ; SOURCE APPORTIONMENT ; OH REACTIVITY ; NONMETHANE HYDROCARBONS ; ATMOSPHERIC CHEMISTRY ; SEASONAL VARIABILITY |
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/32263 |
专题 | 气候变化 |
作者单位 | 1.Colorado State Univ, Dept Chem, Ft Collins, CO 80523 USA; 2.Colorado State Univ, Dept Atmospher Sci, Ft Collins, CO 80523 USA; 3.Natl Pk Serv, Air Resources Div, Lakewood, CO USA |
推荐引用方式 GB/T 7714 | Abeleira, A.,Pollack, I. B.,Sive, B.,et al. Source characterization of volatile organic compounds in the Colorado Northern Front Range Metropolitan Area during spring and summer 2015[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2017,122(6). |
APA | Abeleira, A.,Pollack, I. B.,Sive, B.,Zhou, Y.,Fischer, E. V.,&Farmer, D. K..(2017).Source characterization of volatile organic compounds in the Colorado Northern Front Range Metropolitan Area during spring and summer 2015.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,122(6). |
MLA | Abeleira, A.,et al."Source characterization of volatile organic compounds in the Colorado Northern Front Range Metropolitan Area during spring and summer 2015".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 122.6(2017). |
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