%0 Journal Article
%T Preliminary Study on HOx Photochemical Processes in Urban Atmosphere of Guangzhou City<br>广州城市大气HOx化学过程初步研究
%A REN Xin-rong
%A WANG Hui-xiang
%A SHAO Ke-sheng
%A TANG Xiao-yan
%A <br>任信荣
%A 王会祥
%A 邵可声
%A 唐孝炎
%J 环境科学
%D 2004
%I 
%X Simultaneous measurements of atmospheric hydroxyl radicals (OH) and other pollutants in Guangzhou city were carried out in July, 2000. The quantitative analysis of HOx reaction cycle during daytime in summer was made. The calculation results indicated that the total production rates of OH and HO2 were about 4.5×108 OH/(cm3·s) and 3.8×108 HO2/(cm3·s), respectively. The primary OH source in urban atmosphere was the photolysis of HONO, while the main OH sinks were the reactions of OH with VOCs, HCHO, NO2 and CO. The HOx chemistry in urban atmosphere is quite different from that in the remote clean atmosphere.
%K atmospheric hydroxyl radicals
%K measurement
%K atmospheric photochemistry
%K source and sink
%K Guangzhou City<br>大气OH自由基
%K 测量
%K 大气光化学
%K 源和汇
%K 广州
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=31B35D70C78C6EEE&yid=D0E58B75BFD8E51C&vid=C5154311167311FE&iid=E158A972A605785F&sid=D3E34374A0D77D7F&eid=4AD960B5AD2D111A&journal_id=0250-3301&journal_name=环境科学&referenced_num=3&reference_num=15