| very | 62 | degree |
| about the impact | 37 | other |
| about the quality of the air | 29 | other |
| resident → be → concerned | 897 |
| resident → be → worried | 242 |
| resident → be → concern | 14 |
| negative | neutral | positive |
| 0.497 | 0.440 | 0.063 |
| Raw frequency | 1153 |
| Normalized frequency | 0.892 |
| Modifier score | 0.631 |
| Perplexity | 32.091 |