Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.atmosres.2019.05.020 |
Chemical characteristics of atmospheric carbonyl compounds and source identification of formaldehyde in Wuhan, Central China | |
Yang, Z.1; Cheng, H. R.1,3; Wang, Z. W.1; Peng, J.1; Zhu, J. X.1; Lyu, X. P.2; Guo, H.2 | |
2019-11-01 | |
发表期刊 | ATMOSPHERIC RESEARCH
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ISSN | 0169-8095 |
EISSN | 1873-2895 |
出版年 | 2019 |
卷号 | 228页码:95-106 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | The chemical characteristics of carbonyl compounds were investigated concurrently at urban (ZY) and suburban (JX) sites in Wuhan in 2017. Thirteen carbonyl compounds were quantified, with average total mixing ratios of 11.29 +/- 3.85 ppbv at ZY and 8.72 +/- 3.75 ppbv at JX. Formaldehyde (HCHO), acetaldehyde (CH3CHO) and acetone (CH3COCH3) were the three most abundant atmospheric carbonyl compounds, accounting for > 85% of the total carbonyl compound mixing ratio at both sites. HCHO exhibited highest concentrations during summer and lowest concentrations during winter at ZY and JX. In contrast, CH3CHO and CH3COCH3 showed an opposite seasonal trend, suggesting that HCHO may be mainly generated by photochemical reactions in summer, while CH3CHO and CH3COCH3 might be originate from primary emissions in winter. Diurnal variations were assessed, with HCHO exhibiting peak values at midnight in all seasons, with levels associated with diesel-fuel vehicle emissions. High ratios of C-1/C-2 and C-2/C-3 were observed in summer at ZY and JX, suggesting biogenic sources significantly contribute to carbonyl compound formation. Furthermore, linear regression analysis showed a high HCHO contribution from primary sources in winter (73.5% at ZY, 58.6% at JX) and secondary sources in summer (67.2% at ZY, 47.4% at JX). The results of this study will help formulate effective emission control strategies for carbonyl pollution in Wuhan. |
英文关键词 | Carbonyls compounds Diurnal variation Seasonal variation Source identification |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000477686700009 |
WOS关键词 | PEARL RIVER DELTA ; VOLATILE ORGANIC-COMPOUNDS ; AMBIENT AIR ; STATISTICAL-ANALYSIS ; TEMPORAL VARIATIONS ; DIURNAL-VARIATIONS ; SECONDARY SOURCES ; SEASONAL TRENDS ; URBAN ; CHEMISTRY |
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/187888 |
专题 | 地球科学 |
作者单位 | 1.Wuhan Univ, Sch Resource & Environm Sci, Wuhan 430079, Hubei, Peoples R China; 2.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hong Kong, Peoples R China; 3.Wuhan Univ, Shenzhen Res Inst, Shenzhen, Peoples R China |
推荐引用方式 GB/T 7714 | Yang, Z.,Cheng, H. R.,Wang, Z. W.,et al. Chemical characteristics of atmospheric carbonyl compounds and source identification of formaldehyde in Wuhan, Central China[J]. ATMOSPHERIC RESEARCH,2019,228:95-106. |
APA | Yang, Z..,Cheng, H. R..,Wang, Z. W..,Peng, J..,Zhu, J. X..,...&Guo, H..(2019).Chemical characteristics of atmospheric carbonyl compounds and source identification of formaldehyde in Wuhan, Central China.ATMOSPHERIC RESEARCH,228,95-106. |
MLA | Yang, Z.,et al."Chemical characteristics of atmospheric carbonyl compounds and source identification of formaldehyde in Wuhan, Central China".ATMOSPHERIC RESEARCH 228(2019):95-106. |
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