Meteorological factors and air pollutants | Ordinary day | Holiday | Cold season | Warm season | Whole year |
Ave tem, ˚C | −0.096** | −0.113** | 0.024 | −0.081* | −0.071** |
Wind velocity, m/s | 0.059* | 0.052 | 0.069** | 0.097** | 0.049* |
Wind max velocity, m/s | −0.008 | −0.051 | 0.013 | 0.053 | −0.011 |
Min tem, ˚C | −0.085** | −0.104** | 0.031 | −0.042 | −0.061** |
Max tem, ˚C | −0.105** | −0.121** | 0.021 | −0.126** | −0.080** |
Humidity, % | −0.027 | 0.026 | −0.024 | −0.064 | −0.016 |
SO2, mg/m3 | 0.077** | 0.058 | −0.023 | 0.058 | 0.066** |
NO2, mg/m3 | 0.111** | 0.149** | 0.071** | 0.119** | 0.123** |
PM10 µg/m3 | 0.104** | 0.202** | 0.050* | 0.196** | 0.124** |
PM2.5 µg/m3 | 0.046 | 0.124** | −0.011 | 0.075* | 0.063** |
CO, mg/m3 | 0.013 | −0.020 | −0.020 | −0.016 | 0.042* |
O3, mg/m3 | −0.120** | −0.295** | −0.124** | −0.144** | −0.153** |