Table 3.

Correlation coefficients between air pollutants and meteorological factors.

Region	Variable	PM2.5	PM10	SO2	CO	NO2	O3
NEC	Precipitation	−0.208*	−0.192*	−0.226*	−0.179*	−0.196*
	Temp	−0.177*		−0.386*	−0.297*		0.625*
	WS	−0.393*	−0.229*	−0.476*	−0.445*	−0.372*	0.378*
NW	Precipitation		0.163**
	Temp	−0.417*	0.23*	−0.518*	−0.673*	−0.345*	0.541*
	WS	−0.363*	0.201*	−0.469*	−0.582*	−0.419*	0.425*
NCP	Precipitation			−0.252*		−0.144**	0.136**
	Temp	−0.329*		−0.185*	−0.405*		0.491*
	WS	−0.434*	−0.212*	−0.417*	−0.454*	−0.172*	0.279*
MG	Precipitation	0.156**	0.166**				−0.144**
	Temp	−0.31*	−0.151**	−0.353*	−0.405*	−0.219*	0.537*
	WS	−0.271*		−0.373*	−0.385*	−0.348*	0.382*
TP	Precipitation			−0.215*	−0.209*		0.289*
	Temp	−0.139**	0.286*	−0.394*	−0.504*		0.252*
	WS		0.257*	−0.231*	−0.321*		0.242*
YR	Precipitation	−0.176*	−0.222*	−0.283*			−0.191*
	Temp		0.169*	0.377*	−0.196*	0.292*	0.415*
	WS	−0.172*					0.207*
CS	Precipitation	−0.274*	−0.304*	−0.211*		−0.138**
	Temp		0.332*	0.438*		0.317*	0.429*
	WS		−0.131**
SC	Precipitation	−0.324*	−0.289*	−0.193*		−0.169*	−0.194*
	Temp	0.157**	0.31*	0.303*		0.335*	0.154**
	WS	−0.323*	−0.326*	−0.237*		−0.318*

*p < 0.01.

**p < 0.05.