Pattern and cause of acidic deposition in the Chongqing region, Sichuan Province, China
Pattern and cause of acidic deposition in the Chongqing region, Sichuan Province, China
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DOI：
10.1007/bf00483049
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发表时间：
1994-09
期刊：
影响因子：
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通讯作者：
Z. Dawei;H. Seip;Zhao Dianwu;Zhang Dongbao
中科院分区：
文献类型：
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作者：
Z. Dawei;H. Seip;Zhao Dianwu;Zhang Dongbao
重庆地区位于中国四川省，包括一个大城市，许多小城镇和农村地区。该地区的能源生产严重依赖高硫煤。燃煤产生的硫氧化物和其他化合物对大气的污染已成为一个主要问题。整个地区都有酸雨，体积加权平均pH值约为4.30。该区域的平均硫沉积总量估计约为8 g S m−2yr−1。本文报道了雨、雾、露、云中主要离子的浓度，空气中SO_2的浓度，空气中颗粒物和降尘的浓度。讨论了空气和水滴中重要化学物质的排放和相互作用。
The Chongqing region located in Sichuan Province of China, comprises a large city, many small towns and rural areas. The region relies heavily on high-sulfur coal for energy production. Atmospheric pollution by sulfur oxides and other compounds from coal burning has become a major issue. Acid rain is observed throughout the region; volume weighted average pH is about 4.30. Average total S deposition for the region is estimated to be about 8 g S m−2yr−1. In this paper we report concentrations of major ions in rain, fog, dew and clouds, of SO2in air and of airborne particles as well as dustfall. The emissions and interactions between important chemical species in air and water droplets are discussed.