| Variables | Coefficients |
| Nitric Oxide | −1.98759 |
| Nitrogen Dioxide | . |
| Oxides of Nitrogen | −0.00638 |
| Wind Speed | −0.25833 |
| Resultant Wind Speed | . |
| Resultant Wind Direction | −0.00391 |
| Maximum Wind Gust | −0.01733 |
| Std. Dev. Wind Direction | 0.06886 |
| Outdoor Temperature | −0.00652 |
| Dew Point Temperature | 0.04620 |
| Relative Humidity | −0.13025 |
| Solar Radiation | 1.23665 |
| PM10 | 0.01135 |