Table 1.

Correlation coefficients for the relationships of PAHs and NPAHs in PM_2.5 with meteorological data.

Compound	T	P	RH	WS
PAHs	−0.778 **	0.037	0.085	0.059
NPAHs	−0.626 **	0.130	0.325	−0.300

Level of significance: **, p < 0.01. T: temperature (°C), P: precipitation (mm), RH: relative humidity (%), WS: wind speed (m/s).