泰山春季臭氧污染特征

采用紫外光度法,使用美国热电子公司的TECO model49c型紫外吸收式臭氧分析仪,对2004年5月泰山站的地面臭氧进行监测,以获得更具华北区域代表性的臭氧春季污染特征.结果表明:2004年5月泰山站ψ(O₃)的月均值为64μL/m3,变化幅度达到53 μL/m3;其频率分布呈单峰性,主要集中于55～75μL/m3,与济南站的分散型和区域背景站Cape D'Aguilar的双峰型分布有明显的不同;泰山ψ(O₃)有明显的日变化特征,变化幅度(19 μL/m3)远大于中国西部的瓦里关站,这可能与泰山处于中国东部,尽管距地面较高,但不可避免地受到区域性的污染有关. 

The Characters of Variation of Ozone at Taishan in Spring

In order to obtain regional variation of ozone in North China in spring,the surface ozone was monitored at Mount Tai during May,2004,adopting UV photometry with TECO model49c-type UV absorption ozone analyzer manufactured by US Thermo Electron Corporation.The results show that Monthly ozone concentration is 64 μL/m3,with a variation of 53 μL/m3.The frequency distribution of hourly ozone concentration is one-peak,mainly in 55～75 μL/m3,obviously different from the dispersed pattern in Jinan and the two-peak pattern in Cape D’Aguilar station,the regional background station.The ozone concentration has an obviously diurnal variation,with a variation of 19 μL/m3,which is bigger than Waliguan,a background station in the west of China.This is partly explained by the regional pollution in the east of China.