浅谈环境空气中氨的来源及污染现状

A Brief Discussion on the Source of Ammonia Gas in Ambient Air and the Current Situation of Pollution

氨气是大气中唯一的高浓度碱性气体,可与硝酸或硫酸等酸性气体发生反应,它是大气雾霾污染过程二次颗粒物形成的重要原因。由于氨来源复杂多变,我国及世界上大部分地区尚未对氨气提出有针对性的有效减排措施。通过对太原市环境空气中氨气的监测,发现氨气浓度有升高的趋势,且和空气中TSP浓度有一定的相关性,氨气排放可能对环境造成更大的污染,因此建议有关部门引起重视,并研究不同浓度氨对人体的长期危害。

Ammonia gas is the only alkaline gas with high concentration in the air,which can react with acid gas like nitric acid or sulfuric acid. It is the main cause for forming secondary particles during haze pollution. As source of ammonia is complex and varied,China and most countries of the world have yet put forward effective emission reduction measures against ammonia gas. This paper finds out that concentration of ammonia gas tends to increase and it has some correlation with TSP concentration in the air by monitoring of ammonia gas in ambient air of Taiyuan. So Emission of Ammonia may cause severer pollution for environment. It should arouse the attention of relative departments,and research harm of ammonia with various concentration on human body in a long term.