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- W4211098219 endingPage "107129" @default.
- W4211098219 startingPage "107129" @default.
- W4211098219 abstract "Preventing high concentrations of fine particulate (PM2.5) to realize the goal of sustainable development is becoming a challenge for rapidly urbanized cities. Increasing vehicle emission due to inefficient urban form is thought to be the main cause of traffic congestion and increased PM2.5 concentrations. Previous efforts attributing PM2.5 concentrations to urban forms are yet to reach consistent conclusions on practical environmental protection strategies. In this study, we considered urban compositions and their spatial configuration to propose a new measurement-urban configuration-and document the effects of urban configuration on PM2.5 concentrations. Using 330 Chinese cities as our sample, we found that the areas of two types of urban facilities, namely, residence and industry, are positively related to PM2.5 concentrations, and the area of public service facilities is negatively related to PM2.5 concentrations. Regarding the spatial configuration of different urban compositions, we documented that residence-industry accessibility is a key factor of PM2.5 concentrations and plays a more important role than the residence-commerce accessibility. We also compared the influence of two accessibility indices (distance- and gravity-based accessibilities) and further found that the effect of reducing the residence-industry distance is more remarkable than the effect of increasing residential or industrial area on reducing PM2.5 concentrations. Our results indicate that the key to reaching sustainable urban expansion is to synchronize urban constructions with spatial configuration optimization. For Chinese cities, a 7.52% increase in residence area requires at least 1% decrease in the average residence-industry distance to eliminate the incremental effects of newly constructed residential region on PM2.5 concentrations. This study casts new light on the relationship between urban configuration and PM2.5 concentration and provides decision makers practical and realistic approaches in realizing sustainable development goals." @default.
- W4211098219 created "2022-02-13" @default.
- W4211098219 creator A5033239420 @default.
- W4211098219 creator A5050371077 @default.
- W4211098219 creator A5082020327 @default.
- W4211098219 creator A5084939124 @default.
- W4211098219 date "2022-03-01" @default.
- W4211098219 modified "2023-10-01" @default.
- W4211098219 title "Urban configuration and PM2.5 concentrations: Evidence from 330 Chinese cities" @default.
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- W4211098219 doi "https://doi.org/10.1016/j.envint.2022.107129" @default.
- W4211098219 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/35149448" @default.
- W4211098219 hasPublicationYear "2022" @default.
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