Seasonal, diurnal and nocturnal variations of carbonyl compounds in the semi-urban environment of Orleans, France

被引：30
作者：
Jiang, Zhaohui [1 ,2 ]
Grosselin, Benoit [1 ]
Daele, Veronique [1 ]
Mellouki, Abdelwahid [1 ]
Mu, Yujing [3 ]
机构：
[1] CNRS OSUC, ICARE, 1C Ave Rech Sci, F-45071 Orleans 02, France
[2] Changsha Univ Sci & Technol, Coll Chem & Biol Engn, Changsha 410004, Hunan, Peoples R China
[3] Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China
来源：
JOURNAL OF ENVIRONMENTAL SCIENCES | 2016年 / 40卷
关键词：
Carbonyls; Measurements; Semi-urban; ATMOSPHERIC CARBONYLS; URBAN-ENVIRONMENT; TEMPORAL VARIATIONS; BIOGENIC EMISSIONS; AMBIENT LEVELS; HEALTH-RISKS; AIR; FORMALDEHYDE; ISOPRENE; CHEMISTRY;
D O I：
10.1016/j.jes.2015.11.016
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Atmospheric carbonyls were measured at a semi-urban site in Orleans, France, from October 2010 to July 2011. Formaldehyde, acetaldehyde and acetone were found to be the most abundant carbonyls, with average concentrations of 3.1, 1.0, 2.0 ppb, respectively in summer, 2.3, 0.7, 2.2 ppb, respectively in autumn, 2.2, 1.0, 2.1 ppb, respectively in spring, and 1.5, 0.7, 1.1 ppb, respectively in winter. Photo-oxidation of volatile organic compounds (VOCs) was found to make a remarkable contribution to atmospheric carbonyls in the semi-urban site based on the distinct seasonal and diurnal variations of the carbonyls, as well as the significantly positive correlations between the carbonyls and ozone. The significantly negative correlations between NOx and O-3 as well as the carbonyls and the positive correlations between wind speed and O-3 as well as the carbonyls implied that the carbonyls and O-3 at the semi-urban site were probably formed during air mass transport from neighboring cities. (C) 2015 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
引用
收藏
页码：84 / 91
页数：8
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