Table 3.
Correlation coefficients between meteorological and air pollution indicators in Jinan city, 2011–2020.
| DMT | PM2.5 | PM10 | NO2 | SO2 | CO | O3-8h | RH | BP | WS | |
|---|---|---|---|---|---|---|---|---|---|---|
| DMT | 1 | −0.268 | −0.240 | −0.498 | −0.393 | −0.404 | 0.814 | 0.182 | −0.888 | 0.089 |
| PM2.5 | 1 | 0.863 | 0.648 | 0.679 | 0.807 | −0.265 | 0.116 | 0.212 | −0.154 | |
| PM10 | 1 | 0.674 | 0.661 | 0.694 | −0.181 | −0.149 | 0.206 | −0.036 | ||
| NO2 | 1 | 0.649 | 0.771 | −0.485 | −0.078 | 0.528 | −0.347 | |||
| SO2 | 1 | 0.699 | −0.364 | −0.209 | 0.342 | 0.055 | ||||
| CO | 1 | −0.448 | 0.188 | 0.346 | −0.317 | |||||
| O3-8h | 1 | −0.112 | −0.694 | 0.165 | ||||||
| RH | 1 | −0.245 | −0.342 | |||||||
| BP | 1 | −0.140 | ||||||||
| WS | 1 |
All the correlation coefficients were statistically significant with p < 0.001.
DMT, Daily mean temperature; RH, Relative humidity; BP, Barometric pressure; WS, Wind speed; PM2.5, Particulate matter with aerodynamic diameter less than 2.5 μm; PM10, Particulate matter with aerodynamic diameter less than 10 μm; NO2, Nitrogen dioxide; CO, Carbon monoxide; SO2, Sulfur dioxide; O3-8h, Ozone for 8 h.