摘要
采用分段监测的方法研究了辽宁丹东凤凰山垂直高度上的降水酸度及组分特征,并利用后向气流轨迹与分段离子相关性叠加分析的方法,对山上与山下降水酸度的差异成因进行了分析。结果表明:凤凰山4次降水中,pH值山上均低于山下,总离子浓度山上均低于山下,说明近地面大气污染物对酸雨起到一定的中和作用;山上降水酸度主要受大气远距离传输影响,山下降水酸度受本地源和远距离传输的共同作用。
The characteristics of pH and the chemical precipitations of the rain between the middle and the foot of Mount Fenghuangshan were studied based on the step by step sampling. The reasons of the differences were analyzed based by backward trajectory and the ionic references. The results showed that the pH and the ionic concentrations of the rain of the middle of Mount Fenghuangshan were lower than the foot＇s, as the local pollutants played the neutralization part. The pH of the rain of the middle of Mount Fenghuangshan was influenced by the ecdemic transport, while the foot＇s was influenced by the ecdemic transport and the local pollutants.
出处
《环境保护与循环经济》
2013年第5期56-58,共3页
environmental protection and circular economy
关键词
酸雨
分段采样
气流轨迹
离子相关性
凤凰山
acid rain
step by step sampling
backward trajectory
ionic references
Mount Fenghuangshan
