南通地区酸性降水的特征分析

The Analysis of the Characteristics of Acid Rain in Nantong

选用南通地区1991～1997年降水及空气污染指标监测结果,结合气象资料对酸性降水进行了综合分析。得出南通地区酸性降水有着时空差异,市区和如城镇是该地区内酸雨高频率区域,酸性降水的季节变化类同于两广地区,酸性降水的时空差异与二氧化硫、氮氧化物空气污染和天气系统活动有关。南通地区酸雨属硫酸盐型。

In this paper the acid rain of Nantong is analysed by using the monitored results of the rain, the degree of air pollution and meteorological documents from 1991 to 1997. The degree of acid rain of Nantong is different in different time and zone. The acid rain and its degree of acid are frequently concentrated in Nantong city and Rucheng town, its change with season is similar to the zone of Liangguang. The difference of time and zone of acid rain relates to the degree of SO_2 and NOx pollution and the changes of air system. The type of acid rain is sulphuric acid salt.