Methods for defining the scopes and priorities for joint prevention and control of air pollution regions based on data-mining technologies
Methods for defining the scopes and priorities for joint prevention and control of air pollution regions based on data-mining technologies
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DOI：
10.1016/j.jclepro.2018.03.101
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发表时间：
2018-06
影响因子：
11.1
通讯作者：
Yujing Xie;Laijun Zhao;Jian Xue;H. Oliver Gao;Huiyong Li;Ran Jiang;Xiaoyan Qiu;Shuhai Zhang
中科院分区：
文献类型：
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作者：
Yujing Xie;Laijun Zhao;Jian Xue;H. Oliver Gao;Huiyong Li;Ran Jiang;Xiaoyan Qiu;Shuhai Zhang
如何实施大气污染联防联控战略，有效控制严重的区域大气污染已成为全球关注的焦点。中国政府已广泛采用这一策略，但由于缺乏准确的JPCAP区域范围和优先事项，该策略改善区域空气质量的速度太慢，成本也太高。在此背景下，利用不断扩大的空气污染监测网络提供的长期、广域监测数据，我们提出了解决这些问题的新方法，包括：(i)利用数据挖掘技术将大区域细分为子区域的方法；（ii）通过建立四个关键指标，基于与理想解决方法相似的顺序偏好技术（TOPSIS）确定JPCAP子区域优先级的方法。为了验证这些方法，我们将其应用于中国长江三角洲15个城市直径小于2.5 μm的颗粒物（PM2.5）和臭氧（O3）的JPCAP案例研究。我们发现，研究区域可被细分为JPCAP pm2.5的4个子区域和O3的9个子区域。这些分区在人口密度、产业结构、地理特征和气候等方面的优先级与实际情况相匹配，表明新方法是科学有效的。因此，新方法的实施将有助于缓解中国和世界各地的区域污染问题。
How to implement the strategy of joint prevention and control of air pollution (JPCAP) to effectively control the severe regional air pollution has become a focus of global concern. Chinese government has adopted this strategy widely, but it is improving the regional air quality too slowly and costly because of lacking accurate scopes and priorities of JPCAP regions. In this context, making use of long-term, wide-area monitoring data provided by the constantly expanding air pollution monitoring network, we proposed new methods to solve these problems, including (i) the method of subdividing large regions into sub-regions by using data-mining technologies and (ii) the method of determining the priorities for JPCAP sub-regions based on the technique for order preference by similarity to an ideal solution method (TOPSIS) by establishing four key indicators. To test the methods, we applied them to a case study of JPCAP for particulates smaller than 2.5 μm in diameter (PM2.5) and ozone (O3) in 15 cities of the Yangtze River Delta, China. We found that the region under study could be subdivided into four JPCAP sub-regions for PM2.5and nine for O3. The priorities assigned to these sub-regions match their actual conditions in terms of population density, industrial structure, geographic features, and climate, suggesting that the new methods are scientific and effective. Thus, implementation of the new methods should help to mitigate regional pollution problems both in China and around the world.