| throughout the state | 2 | location |
| in elderly people | 2 | location |
| smog → cause → asthma | 13 |
| smog → aggravate → asthma | 12 |
| smog → exacerbate → asthma | 7 |
| smog → be linked to → asthma | 6 |
| smog → worsen → asthma | 4 |
| smog → contribute to → asthma | 4 |
| negative | neutral | positive |
| 0.930 | 0.064 | 0.006 |
| Raw frequency | 46 |
| Normalized frequency | 1.000 |
| Modifier score | 0.500 |
| Perplexity | 86.631 |