Nitrogen-oxide layer over the urban heat island in Okayama city

被引:10
作者
Sahashi, K [1 ]
Hieda, T [1 ]
Yamashita, E [1 ]
机构
[1] OKAYAMA UNIV SCI,FAC ENGN,OKAYAMA 700,JAPAN
关键词
NOx; observation; tethered balloon; air sampler;
D O I
10.1016/1352-2310(95)00141-7
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
NOx concentration above an urban area was measured using a newly developed lightweight air sampler suspended from a tethered balloon. A high concentration of NOx was detected at a level which coincided with the bottom of the elevated inversion layer, at a height of approximately 100 m above the ground. The maximum concentration at this point was twice that of measurements taken at ground level. While the reason for this phenomenon is not confirmed, several hypotheses are proposed.
引用
收藏
页码:531 / 535
页数:5
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