Table 2 The linear correlation of NO2 and temperature, relative humidity and air pollutants by Pearson analysis
Temperature | Humidity | PM2.5 | O3 | PM10 | SO2 | NO2 | CO | |
|---|---|---|---|---|---|---|---|---|
Temperature | – | 0.31** | −0.32** | 0.20** | −0.24** | − 0.15** | − 0.27** | − 0.15** |
Humidity | – | – | −0.22** | −0.41** | − 0.26** | −0.17** | 0.02 | −0.00 |
PM2.5 | – | – | – | 0.31** | 0.94** | 0.60** | 0.73** | 0.18** |
O3 | – | – | – | – | 0.35** | 0.26** | 0.11** | 0.00 |
PM10 | – | – | – | – | – | 0.44** | 0.80** | −0.05* |
SO2 | – | – | – | – | – | – | 0.27** | 0.68** |
NO2 | – | – | – | – | – | – | – | −0.14** |