【摘要】 选择TSP、SO₂质量浓度、NO_x质量浓度、年降尘量等指标,主要利用统计资料研究了中国西部河谷型城市近30年来大气环境污染的变化趋势,以及大气环境污染的发展阶段。在此基础上,从大气污染物的排放与治理等角度总结了该类城市大气环境污染的机制。更多还原

【Abstract】 Statistic materials were mostly used and some indexes,such as TSP,concentration of SO₂ concentration of NO_x,annual dust flux,etc,were chosen to study the changing trend and developing phase of atmospheric environment pollution of the valley-city in Western China in the past 30 years.Based on the result,the mechanism of atmospheric environment pollution of the valley-city in Western China was summarized through the following aspects:the flux intensity of every unit’s industrial added value,the flux and settlement of atmospheric polluter and the environmental capability of valley.更多还原