Indoor air concentrations on nicotine (μg/m3) in a variety of workplaces
| Type of workplace | Number of studies | Number of establishments sampled | Weighted mean* | Range | Ratio† |
|---|---|---|---|---|---|
| *Mean of average nicotine values reported in individual studies weighted by number of establishments sampled in each study. | |||||
| †Ratio of weighted mean nicotine concentration in residences, restaurants, bowling alleys, billiard halls, betting establishments, bars, and bingo parlours to weighted mean nicotine concentration in offices. | |||||
| Offices5 | 22 | 940 | 4.1 | 0.8–22.1 | 1.0 |
| Residences5 | 7 | 91 | 4.3 | 1.6–21.0 | 1.0 |
| Restaurants5 | 17 | 402 | 6.5 | 3.4–34.0 | 1.6 |
| Betting establishments12,14,22,28–30 | 3 | 4 | 9.8 | 8.0–10.7 | 2.4 |
| Bowling alleys11,22,23 | 2 | 6 | 10.5 | 10.1–10.7 | 2.6 |
| Billiard halls14,23,26 | 2 | 3 | 13.0 | 9.8–19.4 | 3.2 |
| Bars14–16,18–20,22–25,31 | 10 | 27 | 31.1 | 7.4–105.4 | 7.6 |
| Bingo parlours23,28 | 2 | 3 | 76.0 | 65.5–81.2 | 18.5 |