Exposure classes¶ | Distribution of workers at follow-up | Chronic airflow limitation |
Pre-baseline ozone gassings | 31 | 5 (16.1) |
Pre-baseline and interval ozone gassings | 19 | 3 (15.8) |
Interval ozone gassings | 16 | 1 (6.3) |
ClO2/SO2 gassings | 107 | 9 (8.4) |
Bleachery workers, no gassings | 54 | 5 (9.3) |
Paper mill workers | 54 | 2 (3.7) |
Total | 232 | 19 (18.2) |