[北京城市大气中羟基自由基的测定及特性]
[Determination and characteristics of OH radical in urban atmosphere in Beijing].
作者信息
Ren Xinrong, Wang Huixiang, Shao Kesheng, Miao Guofang, Tang Xiaoyan
机构信息
State Key Laboratory of Environmental Simulation and Pollution Control, Center of Environmental Sciences, Peking University, Beijing 100871, China.
出版信息
Huan Jing Ke Xue. 2002 Jul;23(4):24-7.
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.
在北京，基于高效液相色谱法（HPLC）使用两种方法对大气中的羟基自由基（OH）进行了测量。获得了OH浓度的日变化情况。夏季晴天白天的最大浓度约为8×10⁷ cm⁻³，而秋季则降至约2×10⁷ - 4×10⁷ cm⁻³。研究并讨论了OH与其他污染物之间的关系。观察到OH与UV - B强度、O₃、HNO₂之间呈正线性相关，而OH与NOₓ之间呈负相关。
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