| Study variables | 2 forms | The type of microorganisms | ||||
| Free | Active | Yeasts | Bacteria | Mold | ||
| SO2 forms | Free | 1.0000 | 0.8495 | −0.9309 | −0.6337 | −0.9031 |
| Active | 0.8495 | 1.0000 | −0.9339 | −0.5859 | −0.9602 | |
| The type of found microorganisms | Yeasts | −0.9309 | −0.9339 | 1.0000 | 0.5898 | 0.9610 |
| Bacteria | −0.6337 | −0.5859 | 0.5898 | 1.0000 | 0.4438 | |
| Mold | −0.9031 | −0.9602 | 0.9610 | 0.4438 | 1.0000 | |