IEECAS OpenIR  > 粉尘与环境研究室
Molecular Distribution and Stable Carbon Isotopic Composition of Dicarboxylic Acids, Ketocarboxylic Acids, and alpha-Dicarbonyls in Size-Resolved Atmospheric Particles From Xi'an City, China
Wang, GH (Wang, Gehui)[1,2]; Kawamura, K (Kawamura, Kimitaka)[1]; Cheng, CL (Cheng, Chunlei)[2]; Li, JJ (Li, Jianjun)[2]; Cao, JJ (Cao, Junji)[2]; Zhang, RJ (Zhang, Renjian)[3]; Zhang, T (Zhang, Ting)[2]; Liu, SX (Liu, Suixin)[2]; Zhao, ZZ (Zhao, Zhuzi)[2]
2012-05-01
发表期刊ENVIRONMENTAL SCIENCE & TECHNOLOGY
卷号46期号:9页码:4783-4791
文章类型期刊论文
摘要

Size-resolved airborne particles (9-stages) in urban Xi'an, China, during summer and winter were measured for molecular distributions and stable carbon isotopic compositions of dicarboxylic acids, ketocarboxylic acids, and alpha-dicarbonyls. To our best knowledge, we report for the first time the size-resolved differences in stable carbon isotopic compositions of diacids and related compounds in continental organic aerosols. High ambient concentrations of terephthalic (tPh, 379 +/- 200 ng m(-3)) and glyoxylic acids (omega C-2, 235 +/- 134 ng m(-3)) in Xi'an aerosols during winter compared to those in other Chinese cities suggest significant emissions from plastic waste burning and coal combustions. Most of the target compounds are enriched in the fine mode (<2.1 mu m) in both seasons peaking at 0.7-2.1 mu m. However, summertime concentrations of malonic (C-3), succinic (C-4), azelaic (C-9), phthalic (Ph), pyruvic (Pyr), 4-oxobutanoic (omega C-4), and 9-oxononanoic (omega C-9) acids, and glyoxal (Gly) in the coarse mode (>2.1 mu m) are comparable to and even higher than those in the fine mode (<2.1 mu m). Stable carbon isotopic compositions of the major organics are higher in winter than in summer, except oxalic acid (C-2), omega C-4, and Ph. delta C-13 of C-2 showed a clear difference in sizes during summer, with higher values in fine mode (ranging from -22.8 parts per thousand to -21.9 parts per thousand) and lower values in coarse mode (-27.1 parts per thousand to -23.6 parts per thousand). The lower delta C-13 of C-2 in coarse particles indicate that coarse mode of the compound originates from evaporation from fine mode and subsequent condensation/adsorption onto pre-existing coarse particles. Positive linear correlations of C-2, sulfate and omega C-2 and their delta C-13 values suggest that omega C-2 is a key intermediate, which is formed in aqueous-phase via photooxidation of precursors (e.g., Gly and Pyr), followed by a further oxidation to produce C-2.

DOI10.1021/es204322c
收录类别SCI ; EI
语种英语
引用统计
被引频次:51[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/10164
专题粉尘与环境研究室
通讯作者Wang, GH (Wang, Gehui)[1,2]
作者单位1.Institute of Low Temperature Science, Hokkaido University, Sapporo 060-0819, Japan;
2.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences,Xi’an 710079, China;
3.Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China
推荐引用方式
GB/T 7714
Wang, GH ,Kawamura, K ,Cheng, CL ,et al. Molecular Distribution and Stable Carbon Isotopic Composition of Dicarboxylic Acids, Ketocarboxylic Acids, and alpha-Dicarbonyls in Size-Resolved Atmospheric Particles From Xi'an City, China[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2012,46(9):4783-4791.
APA Wang, GH .,Kawamura, K .,Cheng, CL .,Li, JJ .,Cao, JJ .,...&Zhao, ZZ .(2012).Molecular Distribution and Stable Carbon Isotopic Composition of Dicarboxylic Acids, Ketocarboxylic Acids, and alpha-Dicarbonyls in Size-Resolved Atmospheric Particles From Xi'an City, China.ENVIRONMENTAL SCIENCE & TECHNOLOGY,46(9),4783-4791.
MLA Wang, GH ,et al."Molecular Distribution and Stable Carbon Isotopic Composition of Dicarboxylic Acids, Ketocarboxylic Acids, and alpha-Dicarbonyls in Size-Resolved Atmospheric Particles From Xi'an City, China".ENVIRONMENTAL SCIENCE & TECHNOLOGY 46.9(2012):4783-4791.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
Molecular Distributi(909KB)期刊论文作者接受稿开放获取CC BY-NC-SA请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Wang, GH (Wang, Gehui)[1,2]]的文章
[Kawamura, K (Kawamura, Kimitaka)[1]]的文章
[Cheng, CL (Cheng, Chunlei)[2]]的文章
百度学术
百度学术中相似的文章
[Wang, GH (Wang, Gehui)[1,2]]的文章
[Kawamura, K (Kawamura, Kimitaka)[1]]的文章
[Cheng, CL (Cheng, Chunlei)[2]]的文章
必应学术
必应学术中相似的文章
[Wang, GH (Wang, Gehui)[1,2]]的文章
[Kawamura, K (Kawamura, Kimitaka)[1]]的文章
[Cheng, CL (Cheng, Chunlei)[2]]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。