关于我国酸雨的污染物输送问题

我国燃煤消耗量很大，排放二氧化硫而引起的酸雨污染正引起国内外，特别是东亚地区各国的重视。本文通过4个方面探讨我国酸雨中污染物的输送问题：酸雨输送研究方式和湿沉降过程；我国酸雨分布和硫酸型特点；酸雨与天气系统的关系；我国典型酸雨区研究的成果。由此说明酸雨作为污染物的湿沉降，其前体物的主要部分涉及输送可能是中距离的，即几百公里以内。我国排放污染物对邻国酸雨长距离输送的影响可能存在，但影响究竟有多大则有待于大规模详细研究的结果。

On pollutant transport in acid rain in China

The transport of acidic pollutants and the severe acid rain pollution caused by the huge emission of sulfur dioxide in China are concerned by other countries, especially those in East Asia. The present paper discusses the problem of pollutant transport in several aspects: methods for transport studies and wet deposition process, the pH value distribution characteristics and the sulfur type of acid rain,the relationship of acid rain with weather systems, and the experience of acid rain studies in China. It is intended to explain: as wet deposition, the transport distance of the main part of acid precursors might be of the medium order or within 300km, The long range transport from China does produce impacts to the acid rain of our neighboring countries. However,a quantitative assessment of the impact needs comprehensive, regional scale and inter-country cooperative studies.