Table 6.

Statistics and correlation analysis results of the sample data at different haze levels in January and November.

Weather Conditions	Average PM2.5 Density	Average Negative Emotion Index	Correlation Coefficient	Significance Index
Excellent air	23.63	17.75	−0.432	0.615
Good air	55.6	16.00	0.285	0.531
Light haze	95.95	90.95	0.750	0.030
Moderate haze	124.67	28.00	0.281	0.518
Heavy haze	226.54	106.75	0.829	0.023