摘要
根据近几年降水监测数据,分析了长沙酸雨污染状况。结果表明,长沙市酸雨危害较为严重,降水酸度有明显的季节性变化;降水中主要阴离子是SO4和NO3,SO4含量较高,但是NO3含量逐年上升,致酸作用明显应该受到重视;长沙酸雨有加重的趋势。
On the basis of comprehensive analysis of precipitation monitoring data in Changsha city recent years.h turned out that acid rain pollution of Changsha was serious and would he more serious in future.There were clear seasonal changes of precipitation acidity, the main anions were SO4 and NO3, SO4 content was higher, and the contents of NO3 increased year by year. We should pay more attention to it.
关键词
长沙
酸雨
降水化学组成
Changsha city
acid rain
precipitation chemistry
