Monitoring and analysis for vertical profiles of air pollutants in boundary layer of Beijing

被引：2

作者：

Zhu Yan-Wu ^{[1
,2
,3
]}

Liu Wen-Qing ^{[2
,3
]}

Xie Pin-Hua ^{[2
,3
]}

Dou-Ke ^{[2
,3
]}

Qin Min ^{[2
,3
]}

Si Fu-Qi ^{[2
,3
]}

机构：

[1] Hefei Univ Technol, Sch Chem Engn, Hefei 230009, Peoples R China

[2] Chinese Acad Sci, Key Lab Environm Opt & Technol, Hefei 230031, Peoples R China

[3] Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Hefei 230031, Peoples R China

来源：

CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION | 2010年 / 53卷 / 06期

关键词：

Scanning different optical absorption spectroscopy (DOAS); Vertical profile; Air pollutant; Monitor; DIFFERENTIAL OPTICAL-ABSORPTION; ATMOSPHERE; DOAS; NOX; SO2; O-3;

D O I：

10.3969/j.issn.0001-5733.2010.06.005

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

Based on the scanning differential optical absorption spectroscopy (DOAS) system, vertical distribution of air pollutants (SO2, HCHO, O-3 and NO2) were observed continuously from Aug 27, 2007 to Sep 4, 2007 in Chaoyang District of Beijing and their vertical profiles were analyzed. The typical vertical variation characteristic of SO2 and nocturnal NO titration to O-3 were discussed. The results indicated that the gradient of SO2 was not obvious, and the negative gradient appeared during the morning hours when wind speed was low. The measurement also clearly showed the dominant role of NO titration for vertical variations of nocturnal chemistry in urban areas and O-3 concentrations was mainly influenced by the direct emissions of NO.

引用

页码：1278 / 1283

页数：6

共 17 条

[1] AN EVALUATION OF THE MECHANISM OF NITROUS-ACID FORMATION IN THE URBAN ATMOSPHERE [J].