Human Settlement Quality Evaluation Based on Air Quality in Major Cities of China

Table 1

Evaluation index system of the urban human settlements environment.

Target layer A	Target layer weight	Criterion layer B	Weight of the criterion layer	Index C	Index level weight
Environmental system A1	0.2932	The natural environment B1	0.1433	Air quality index C1	0.0568
				Relative humidity C2 (%)	0.0426
				Average wind speed C3 (m/s)	0.0439
		Social environment B2	0.1499	Per capita public green area C6 (m^2)	0.0586
				The growth of gas and LPG mining industry C5 (%)	0.0395
				Industrial soot (powder) and dust processing rate C4 (%)	0.0518
Social system A2	0.2060	Economic benefits B3	0.1090	Energy consumption per unit of GDP C7 (tce)	0.0551
				Gross value of industrial output C8 (10^8 Yuan)	0.0539
		Economic structure B4	0.0970	GDP proportion of the secondary industry C9 (%)	0.0485
				GDP proportion of the third industry C10 (%)	0.0485
Living system A3	0.1309	Living standard B5	0.1309	Consumer price index C11 (%)	0.0344
				Urban residents’ per capita consumption expenditures C12 (Yuan)	0.0394
				The number of cars per unit C13 (unit)	0.0571
Support system A4	0.3026	Energy-saving and environmental protection B6	0.1034	Energy-saving and environmental protection financial expenditure C14 (10^4 Yuan)	0.0569
				Transport costs per capita C15 (Yuan)	0.0465
		Polluting emissions B7	0.1992	Passenger turnover C16 (10^8 person-km)	0.0527
				Freight turnover C17 (10^8 ton-km)	0.0527
				Industrial SO2 emissions C18 (10^4 t)	0.0467
				Industrial (powder) dust emissions C19 (10^4 t)	0.0471
Human system A5	0.0673	Resident composition B8	0.0673	Population density C20 (%)	0.0332
				The rate of urbanization C21 (%)	0.0341