有机酸对云凝结核形成的影响

Effects of Organic Acids on the Formation of Cloud Condensation Nuclei(CCN)

对流层中的有机酸主要来源于人类活动和自然的排放,它们对云成核现象有重要作用并且对云凝结核(CCN)的数量有显著的贡献,但具体哪些种类的有机酸起着什么样的作用以及有多大的作用却鲜为人知。为此,本文结合国内外在相关领域的研究成果,概要介绍了对流层中有机酸(主要是甲酸,乙酸,丙酮酸,草酸)的含量、来源、存在形态及其对云凝结核影响。

It is believed that organic acids in the troposphere mostly come from human activities and natural emission, and they play a key role in cloud nucleation and make an important contribution to the CCN population,their species remain poorly characterized. In this paper,a comprehensive discussion about the study on organic acids in the troposphere and organic acids(mainly formic,acetic ,pyruvic and oxalic acids)acting as CCN was conducted, and summarized synoptically content, sources, existing form and effect on CCN of organic acids in the troposphere.