Table 3.

Spearman correlation analysis of air pollutants and meteorological factors in Shenzhen during 2013–2015 (r value).

Items	PM10	SO2	NO2	CO	O3	Daily Average Temperature	Daily Average RH	Daily Average Atmosphere Pressure	Daily Average Wind Speed
PM2.5	0.956	0.622	0.628	0.447	0.567	−0.556	−0.515	0.595	−0.111
PM10		0.680	0.628	0.399	0.601	−0.447	−0.591	0.529	−0.127
SO2			0.612	0.257	0.318	−0.176	−0.515	0.270	−0.143
NO2				0.343	0.063 *	−0.415	−0.118	0.346	−0.400
CO					0.189	−0.315	−0.075*	0.242	0.037n
O3						−0.117n	−0.572	0.240	0.078 *
Daily average temperature (°C)							0.200	−0.858	−0.093
Daily average RH (%)								−0.451	−0.046n
Daily average atmosphere pressure (kpa)									0.047n

p < 0.01, except * p < 0.05 and n p > 0.05.