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Results of Pearson correlation test
| Variables | New cases for the three cities | ||||
|---|---|---|---|---|---|
| Pearson correlation coefficient | Wind_speed | Diff_Temp | PM10 | NO2 | O3 |
| Riyadh | -0.04*** | 0.46** | 0.68*** | 0.48** | 0.46** |
| Jeddah | -0.02 | 0.42 | 0.54*** | 0.37* | 0.35** |
| Makkah | -0.07*** | 0.38** | 0.36** | 0.31* | 0.29* |
*** stands for 1% level of significance. ** stands for 5% level of significance. * stands for 10% level of significance
