Journal
SUSTAINABILITY
Volume 11, Issue 3, Pages -Publisher
MDPI
DOI: 10.3390/su11030939
Keywords
AQI indicators; air pollution; collaborative filtering; Beijing-Tianjin-Hebei region
Funding
- National Natural Science Foundation of China [71271126]
- Graduate Innovation Fund of Shanghai University of Finance and Economics
- Humanities and Social Sciences Research Fund of the University of Shanghai for Science and Technology
- Decision-making Consultation Research Project of Shanghai Municipal Government
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This paper calculated and evaluated the air quality of 13 cities in China's Beijing-Tianjin-Hebei (BTH) region from February 2015 to January 2018 based on the extended AQI (Air Quality Index) Indicator System. By capturing the heterogeneous information in major pollutant indicators and the standardization process, we depicted the important effect of other relevant features of pollutant indicators beyond single-point data. Based on that, we further calculated the assessment value of the air quality of different cities in the BTH region by using the Collaborative Filtering Backward Cloud Model to construct differentiated weights of different indicators. With help of the Back Propagation (BP) Neutral Network, we simulated the effect of the pollution control policies of the Chinese government targeting air pollution since March 2016. Our conclusion is: the pollution control policies have improved the air quality of Beijing by 55.74%, and improved the air quality of Tianjin by 34.38%; while the migration of polluting enterprises from Beijing and Tianjin has caused different changes in air quality in different cities of Hebei provincewe saw air quality deterioration by 58.60% and 38.68% in Shijiazhuang and Handan city respectively.
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