CO2 concentration CWT China GDP per capita GIS GWR Iberian Peninsula King Abdulaziz University Korea housing Lanzhou City Logarithmic Mean Divisia Index O3 PM2.5 PM2.5 concentration PSCF SCI-Expanded database The arts aerosols air pollution air pollution concentration air quality apartment ventilation atmospheric circulation atrial fibrillation backward trajectory backward trajectory analysis big-data intelligent system binary logistic model bituminous coal carbon neutrality