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北京市大气OH自由基测量结果及其特征
引用本文:任信荣,王会祥,邵可声,缪国芳,唐孝炎.北京市大气OH自由基测量结果及其特征[J].环境科学,2002,23(4):24-27.
作者姓名:任信荣  王会祥  邵可声  缪国芳  唐孝炎
作者单位:北京大学环境科学中心,环境模拟与污染控制国家重点实验室,北京,100871
基金项目:国家自然科学基金资助项目(40075026,29837190)
摘    要:利用2种基于高效液相色谱技术的大气OH测量方法测定了北京城市大气中OH自由基,得到了其浓度水平和日变化情况.测得夏季日间最大OH浓度为~8×107 cm-3,秋季日间最大浓度为2×107~4×107cm-3,并根据同步测量光强和其它污染物的浓度,分析了OH浓度与这些条件的相关性.结果表明,OH浓度与UV-B相对强度、O3和HNO2的浓度具有一定的正相关性

关 键 词:H自由基  测量  日变化  相关性  大气化学
文章编号:0250-3301(2002)04-04-0024
收稿时间:2001/4/18 0:00:00
修稿时间:2001年4月18日

Determination and Characteristics of OH Radical in Urban Atmosphere in Beijing
Ren Xinrong,Wang Huixiang,Shao Kesheng,Miao Guofang and Tang Xiaoyan.Determination and Characteristics of OH Radical in Urban Atmosphere in Beijing[J].Chinese Journal of Environmental Science,2002,23(4):24-27.
Authors:Ren Xinrong  Wang Huixiang  Shao Kesheng  Miao Guofang and Tang Xiaoyan
Institution:State Key Laboratory of Environmental Simulation and Pollution Control, Center of Environmental Sciences, Peking University, Beijing 100871, China.
Abstract:The measurement of atmospheric hydroxyl radicals (OH) in Beijing was carried out using two methods based on high performance liquid chromatography (HPLC). The diurnal variation of OH concentration was obtained. The maximum concentration during sunny daytime was about 8 x 10(7) cm-3 in summer, while it decreased to about 2 x 10(7)-4 x 10(7) cm-3 in autumn. The relationships between OH and other pollutants were studied and discussed. Positive linear correlation between OH and UV-B intensity, O3, HNO2 was observed, while negative correlation between OH and NOx was found.
Keywords:hydroxyl radicals  measurement  diurnal variation  correlation  atmospheric chemistry
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