%0 Journal Article
%T Characteristics of O3 and Precursors Concentrations in Hangzhou Urban Areas<br>杭州主城区O3与前体物浓度变化特征
%A HONG Shengmao
%A JIAO Li
%A HE Xi
%A SUN Hongliang
%A XU Hong
%A YANG Le
%A HE Jiping
%A <br>洪盛茂
%A 焦荔
%A 何曦
%A 孙鸿良
%A 徐鸿
%A 杨乐
%A 何纪平
%J 气候与环境研究
%D 2009
%I 
%X Based on the air monitoring data in Hangzhou urban areas from 2004 to 2006, the concentrations of O_3 , NO_2 , CO, and their temporal variation characteristics were analyzed.The results showed that all the annual mean concentrations of O_3 , NO_2, and CO were low in the three years, which were 40, 60, and 1400 μg · m~(-3) , respec-tively. The concentrations of O_3 , NO_2 , and CO were different among seasons, O_3 concentration was the highest in summer and the lowest in winter, while both NO_2 and CO concentrations were higher in winter and lower m summer. The diurnal variations of the concentrations of O_3 , NO_2 , and CO were obvious, the diurnal variations of O_3 concentrations showed one peak, while the others had two peaks.The relationship between O_3 and hydrocarbons concentration in different weather conditions showed that O_3 concentration increased significantly and hydrocarbons reduced during cloudless days, but during cloudy days O_3 concentration was lower and hydrocarbons concentrations were higher, and their concentrations changed little In the daytime and nighttime, O_3 and C_2-C_(12) hydrocarbons concentrations changed with different wind velocity. In the daytime, the C_2-C_(12) hydrocarbons concentrations reduced with the increase of wind speed, and O_3 was exactly opposite.The similar situation was not found in the nighttime.
%K C_2-C_(12)
%K precursor
%K C_2- C_(12) hydrocarbons
%K weather condition<br>前体物
%K 天气条件
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=28A2F569B2458C17&jid=484C10BAB5333C14751916EACFF8295F&aid=E979B81AE5DC81D32D1463754CCD4BC7&yid=DE12191FBD62783C&vid=F3583C8E78166B9E&iid=B31275AF3241DB2D&sid=E934BC2766053B28&eid=66D0A4667FE1A38D&journal_id=1006-9585&journal_name=气候与环境研究&referenced_num=0&reference_num=30