id	keyword
ajst-4785	remote
ajst-4785	pm2.5
ajst-4785	sensing
ajst-4785	model
ajst-4785	et al
ajst-4785	satellite
ajst-4785	data
ajst-4785	concentrations
ajst-4785	china
ajst-4785	estimation
ajst-4785	learning
ajst-4785	regression
ajst-4785	aod
ajst-4785	technology
ajst-4785	environment
ajst-4785	information