The effect of polycentric urban spatial structure on PM2.5: An empirical study of China
SUSTAINABLE CITIES AND SOCIETY(2023)
Abstract
•The urban spatial structure of China is developing towards polycentricity.•Polycentricity increases PM2.5 pollution based on the two-way fixed effects model.•Population size has a single threshold effect on PM2.5 pollution.•Careful application of polycentric spatial structure in future urban planning.
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Key words
Urban spatial structure,Polycentricity,PM2.5,Threshold effect
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