中国大气降水化学组成特征及来源解析研究进展

Advances in research on the characteristics of chemical composition and source analysis of atmospheric precipitation in China

大气降水是去除大气污染物的有效机制,是自然界物质、能量循环的重要过程。降水中的组分是反映大气化学组成的有效指标。主要分析中国目前降水pH地理分布特征,降水中离子、重金属和有机酸研究进展,总结当前降水研究常用的方法与模型,在此基础上分析目前我国降水中各组分的来源特征,最后,对我国降水研究现状进行总结并对后续研究提出展望。

Atmospheric precipitation is an effective mechanism of removing air pollutants,also an important process of material and energy circulation in nature.The composition of precipitation is an effective index to reflect the chemical composition of atmosphere.This paper mainly analyzes the geographical distribution characteristics of pH in precipitation in China,and the research progress of ions,heavy metals and organic acids in precipitation.The methods and models commonly used in precipitation research are summarized,and showing the analysis of the source characteristics of components in precipitation in China.Finally,conclusions are drawn on the current status of precipitation research in China,and prospects for follow-up research are put forward.