| Typicality: | 0.358 |
| Saliency: | 0.307 |
| in the chamber | 4 | location |
| in greater quantities | 3 | other |
| chemical → be introduced into → the environment | 12 |
| chemical → be introduced into → our environment | 4 |
| chemical → be introduced to → the environment | 3 |
| negative | neutral | positive |
| 0.558 | 0.384 | 0.058 |
| Raw frequency | 19 |
| Normalized frequency | 0.307 |
| Modifier score | 0.700 |
| Perplexity | 35.233 |