摘要
探讨了西南地区城市、郊区和偏远地区降雨对大气中某些元素及SO_4^(2-),NO_3^-,HNO_3等的清洗作用,估算了不同地区元素的清洗削减率。结果表明,降雨时HNO_3和NO_3^-的清洗作用比SO_4^(2-)大,雨水中的S约有83％以SO_4^(2-)状态存在。
Decrease of concentration of some elements and SO42-,NO3-and HNO3 in atmosphere by precipitation scavenging effect of rainfall in urban, suburban and remote sites in southwestern areas have been studied. The results indicate that scavenging ratio for HNO3 and NO3- is higher than that for SO42-. Amount of SO42- accounts for roughly 83% of S in rain water.
出处
《环境化学》
CAS
CSCD
北大核心
1991年第6期52-55,共4页
Environmental Chemistry
