Improving urban air quality in China: Beijing case study
Improving urban air quality in China: Beijing case study
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DOI：
10.1080/10473289.2005.10464726
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发表时间：
2005-09-01
影响因子：
2.7
通讯作者：
Wang, LT
中科院分区：
文献类型：
--
作者：
Hao, JM;Wang, LT
由于前所未有的经济增长，中国正在经历快速的城市化。因此，许多城市遭受空气污染。中国三分之二的城市未达到城市居住区环境空气质量二级标准。颗粒物（PM），而不是二氧化硫（SO2），是反映从燃煤到混合源污染转变的主要污染物。2002年，63.2%和22.4%的监测城市PM和SO2浓度分别超过二级标准。氮氧化物（NOx）浓度在过去十年中保持在二级标准附近的相对稳定的水平，近年来由于快速机动化，NOx浓度有增加的潜力。总的来说，中国城市大气污染物排放量的增长速度并没有像经济增长和能源消耗增长速度那么快，空气质量有所改善。北京是快速发展城市的典型代表，是一个例子来说明城市空气污染控制的可能选择。北京的案例提供了希望，即在爆炸性发展和机动化时期，与改善空气质量相关的挑战可以得到应对。
China is undergoing rapid urbanization because of unprecedented economic growth. As a result, many cities suffer from air pollution. Two-thirds of China's cities have not attained the ambient air quality standards applicable to urban residential areas (Grade II). Particulate matter (PM), rather than sulfur dioxide (SO2), is the major pollutant reflecting the shift from coal burning to mixed source pollution. In 2002, 63.2 and 22.4% of the monitored cities have PM and SO2 concentrations exceeding the Grade II standard, respectively. Nitrogen oxides (NOx) concentration kept a relatively stable level near the Grade II standard in the last decade and had an increasing potential in recent years because of the rapid motorization. In general, the air pollutants emission did not increase as quickly as the economic growth and energy consumption, and air quality in Chinese cities has improved to some extent. Beijing, a typical representative of rapidly developing cities, is an example to illustrate the possible options for urban air pollution control. Beijing's case provides hope that the challenges associated with improving air quality can be met during a period of explosive development and motorization.