Analysis of wintertime NO2 pollution in the Tokyo Metropolitan area

被引:27
作者
Uno, I [1 ]
Ohara, T [1 ]
Wakamatsu, S [1 ]
机构
[1] INST BEHAV SCI,SHINJUKU KU,TOKYO 162,JAPAN
关键词
NO2; photochemical air pollution; air quality monitoring; photochemical box model; prognostic meteorological model;
D O I
10.1016/1352-2310(95)00177-8
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The high concentration of NO2 in the Tokyo Metropolitan area was investigated by means of air quality monitoring station data analysis and two numerical models: a photochemical box model and a photochemical grid model. Based on monitoring data, the typical variation with time of NO, NO2 and O-3 for days with high NO2 concentrations is presented. The application of the photochemical box and photochemical grid models successfully reproduced these variations when using typical emission intensities for NOx and NMHC from the Tokyo downtown area. Model results revealed that the high concentrations of NO2 in winter (exceeding the Japan environmental quality standard) mainly result from photochemical oxidation of NO to NO2.
引用
收藏
页码:703 / 713
页数:11
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