Secondhand smoke reductions observed as a result of smoke-free legislation in other countries
| Study description | SHS marker | % reduction observed | Number of venues sampled | Reference |
|---|---|---|---|---|
| PM2.5, particulater matter <2.5μm in diameter; RSP, respirable suspended particulate; SHS, secondhand smoke. | ||||
| *This study looked at the difference in PM2.5 levels in Irish-theme pubs in cities/countries with smoke-free legislation and compared them with similar pubs where there were no smoking restrictions. | ||||
| New York State (US) bars | PM2.5 | 84 | 20 | Travers et al10 |
| Irish pubs | Nicotine | 83 | 20 | Mulcahy et al11 |
| Delaware state (US) bars | RSP | 90 | 8 | Repace9 |
| Irish-theme pubs globally* | PM2.5 | 91 | 128 | Connolly et al17 |
| Austin, Texas (US) bars | PM2.5 | 71–99 | 17 | Waring et al18 |
| Norwegian bars and restaurants | Total inhalable dust | 70 | 13 | Ellingsen et al8 |
| Scottish pubs | PM2.5 | 86 | 41 | This study |