Table 3 Pearson’s correlation coefficients among air pollutants in Shanghai, China, 2015–2018 (n = 1461)
Variable | PM2.5 | PM10 | O3 | SO2 | NO2 | CO | T | H |
|---|---|---|---|---|---|---|---|---|
PM2.5 | 1.000 | 0.864** | 0.058* | 0.742** | 0.698** | 0.863** | − 0.293** | 0.014 |
PM10 | – | 1.000 | 0.136** | 0.745** | 0.648** | 0.726** | − 0.248** | − 0.065* |
O3 | – | – | 1.000 | −0.081** | − 0.199** | − 0.131** | 0.537** | − 0.015 |
SO2 | – | – | – | 1.000 | 0.637** | 0.714** | −0.415** | 0.044 |
NO2 | – | – | – | – | 1.000 | 0.739** | −0.434** | −0.068** |
CO | – | – | – | – | – | 1.000 | −0.333** | 0.111** |
T | – | – | – | – | – | – | 1.000 | 0.233** |
H | – | – | – | – | – | – | – | 1.000 |