Table S1. Spearman correlation coefficient ( r _s value) between meteorological factors and air pollutants in Jinan City from 2014 to 2022 (November to March).

Variables	RH	Pressure	WS	PM 2.5	O 3
Abbreviation: Min T.=minimum temperature; RH=relative humidity; WS=wind speed. * Iindicates statistical significance.
Min T.	0.05*	−0.07*	0.26*	0.06*	0.49*
RH		−0.05*	−0.26*	0.41*	−0.39*
Pressure			−0.28*	−0.12*	−0.41*
WS				−0.26*	0.41*
PM 2.5					−0.30*