辽宁省大气湿沉降化学特征分析

摘要

通过分析降水酸度、化学特征和湿沉降量等酸沉降控制指标,得出2009年辽宁省大气湿沉降化学特征.研究发现,辽宁省总体上酸雨污染并不严重,但区域性污染突出；降水化学污染严重,呈地域分布不平衡特征,重污染城市位于辽宁省西部和中部；湿沉降量的空间分布与降水化学污染不同,沉降量大的城市位于东部和南部沿海,所有离子湿沉降量最大值均出现在夏季.%The chemical characteristics of the atmospheric wet deposition in Iiaoning province in 2009 were obtained by analyzing precipitation acidity, chemical characteristics and wet deposition fluxes. Though acid rain pollution was slight in the whole province, the part was very serious. Chemical characteristics of precipitation was excessive and presented unbalanced zone distribution, especially in the west and the center, the spatial distribution of wet deposition was different from that of the chemical pollution, the larger flux cities of wet deposition existed in the east coast and the south coast, and the largest wet deposition fluxes existed in summer.