摘要
2008年6月1日～8月31日,利用TE49I型臭氧监测仪、TE43I型氮氧化物监测仪和TE42I型二氧化硫监测仪,在线观测(每5min)广州城区夏季环境空气O3、NOx、SO2浓度,同步应用芬兰Vaisala MAWS自动气象站以及PWD22现时天气现象传感器实时观测相对湿度、降雨量、辐射强度以及大气能见度等参数,探索广州城区夏季臭氧浓度分布特征并探索了其与能见度的相互关系。结果表明,臭氧季平均浓度为0.04±0.03mg/m3;在晴朗的天气下,温度、辐射强度与O3浓度成正比,风速、相对湿度与O3浓度成反比。O3对能见度的直接影响作用较小,但光化学烟雾引起的能见度下降主要与O3氧化产生的二次气溶胶有关。
Based on measuring the ambient concentrations of O 3 , NO x , and SO 2 , and meteorological data in urban Guangzhou during June 1 to August 31, 2008, the concentration characteristic of O 3 and its impact on visibility were studied. The results indicated that the mean concentration of O 3 was 0.04±0.03 mg/m 3 . On non-precipitation days, the concentration of O 3 was in direct ratio with temperature and radiation, while was in inverse ratio with wind speed and relative humidity. The influence on the visibility from the second aerosols formed in photochemical oxidation with O 3 was more obvious than the O 3 itself.
出处
《广州环境科学》
2011年第3期4-7,共4页
Guangzhou Environmental Science
关键词
臭氧
能见度
吸收系数
空气质量
ozone visibility absorption coefficient air quality
