Comprehensive evaluation of urban air quality using the relative entropy theory and improved TOPSIS method
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Comprehensive evaluation of urban air quality using the relative entropy theory and improved TOPSIS method Hong Lin 1 & Tianhong Pan 2
&
Shan Chen 1
Received: 13 June 2020 / Accepted: 1 September 2020 # Springer Nature B.V. 2020
Abstract With the acceleration of economic development and urbanization, urban air pollution is becoming increasingly serious and has already affected the environmental and human health. Therefore, the detection and management of air quality is imperative. An accurate air quality evaluation can help people better understand and improve the air quality. In this work, a new multi-pollutant weighted comprehensive air quality assessment method combined with the relative entropy theory and improved order preference by similarity to the ideal solution (iTOPSIS) method is proposed. First, two objective weight methods are adopted to determine the degree of influence of pollutants on air quality. Then, a comprehensive weight is calculated using the relative entropy, which can measure the degree of similarity between the two probability distributions. Based on the calculated comprehensive weights, the air quality level is evaluated using the iTOPSIS method. Finally, the effectiveness of the proposed method is evaluated using an example. The results show that the proposed method can not only directly express the air quality level but also provide important and effective information for managers to use to control air pollution. Keywords Air quality . Weight . Relative entropy . Improved TOPSIS method
Introduction Air is an important part of the human living environment (van Erp et al. 2012). A good air quality is also one of the necessary conditions for the steady growth and sustainable development of the urban economy (Ahmadian Marj et al. 2017; El-Nadry et al. 2019). The contradiction between environmental protection and resource utilization has become an impediment to urban development. Effective environmental protection and scientific utilization have become important in promoting or restricting regionally comprehensive, coordinated, and sustainable development (Jodeh et al. 2018; Krishan et al. 2019). With the rapid development of the social economy, constantly increasing urbanization level, massive consumption of resources and energy, and rapid increase in vehicle ownership, a large amount of poisonous and harmful gases
* Tianhong Pan [email protected] 1
School of Electrical Information & Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China
2
School of Electrical Engineering & Automation, Anhui University, Hefei 230601, Anhui, China
are released into the air, resulting in a significant decline in the environmental air quality (Freeman et al. 2017). This situation poses a serious threat that not only directly affects the physical health of the human body but also seriously impacts the global climate. The greenhouse effect, acid rain, and other environmental problems are directly related to air pollution (Aggarwal and Toshniwal 2019; Esteki et al. 2017). Thus, improving the ai
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