摘要
根据 2 0 0 0年夏季在北京 32 5 m铁塔上的一次梯度观测实验 ,给出 8m,12 0 m和 2 80 m三层上的 NO、NO2 、O3 浓度的观测结果。对 NO,NO2 ,O3 小时平均浓度的日变化和垂直分布规律进行了分析 ,结果发现 :(1)各高度上的 NO,NO2 ,O3 浓度均有明显的日变化特征 ,阴雨天的日变化更加复杂 ;(2 ) O3 在晴朗白天有单、双及三峰型分布 ;(3)相对于 12 0 m和 2 80 m,近地面 8m处的 NO浓度最高 ,而 O3 浓度最低 ;(4) NO2 、O3 日平均浓度日变化振幅 12 0 m处最大 ;(5 )中午前后 NO,NO2 ,O3 浓度均在 12 0 m最高。
A series of experiments on pollutant species were carried out during the summer of year 2000 on 235m meteorological tower in Beijing. The observations of NO?NO 2?O 3 at the three levels of 8m, 120m and 280m are analyzed. The results show that firstly, daily variations of concentrations of NO?NO 2?O 3 at each level are significant, which are more complicated in cloudy and rainy days. Secondly three typical distribution patterns of ozone concentration exist in daytime. Thirdly, the concentration of NO at surface layer is the highest, compared with those at 120m and 280m, while there exist reverse results for ozone vertical concentration distribution. Fourthly, 120m is the most significant level in the sense of the daily varying amplitudes of NO 2and O 3at three levels. Finally, the heaviest pollution of NO?NO 2?O 3in the daytime might occur at the height of 120m compared with the results at other two heights.
出处
《青岛海洋大学学报（自然科学版）》
CSCD
北大核心
2002年第2期179-185,共7页
Journal of Ocean University of Qingdao
基金
中国科学院重点项目 KZ95 2 -J1 -4 0 7
中国科学院知识创新工程项目 KZCXZ-2 0 4 -5
