Grey relational analysis for the AQI of Beijing, Tianjin, and Shijiazhuang and related countermeasures.
GREY SYSTEMS-THEORY AND APPLICATION(2018)
摘要
Purpose The purpose of this paper is to explore the relationship among the air quality index (AQI) of Beijing-Tianjin-Shijiazhuang region and find countermeasures to control the pollution situation. Design/methodology/approach This study used the grey convex relation model to calculate the grey correlation degree through the AQI of Beijing-Tianjin-Shijiazhuang region. Findings By analyzing the calculation results among the three cities, it was concluded that the air quality of the three cities is closely related. Therefore, the Beijing-Tianjin-Shijiazhuang region should collaboratively improve the air quality for common development. Research limitations/implications More approaches may be adopted to calculate the grey correlation degree in the further research studies. Practical implications There exist some practical difficulties in implementing these governance measures. Originality/value The paper gives the countermeasures to control the pollution situation in Beijing-Tianjin-Shijiazhuang region.
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关键词
Grey incidence analysis,Air quality index,Collaborative control
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