TABLE 2.
Comparison of the Mean and Median Nicotine Concentrations in an Office Building Before and After the Implementation of a Smoke-Free Policy
| Nicotine Concentration (μg/m3) | Locations With Decreased Nicotine Levels After the Policy
|
Locations With Increased Nicotine Levels After the Policy
|
|||||||
|---|---|---|---|---|---|---|---|---|---|
| Offices With at Least One Smoker | Offices With No Smoker | Restrooms | Hallways | Lounges | Lobby | Stairways | Conference Rooms | Dining Hall | |
| Mean (prepolicy) | 22.30 | 4.89 | 8.50 | 11.97 | 19.47 | <0.15 | 0.62 | 0.78 | <0.15 |
| Mean (postpolicy) | 4.90 | 0.80 | 3.73 | 1.39 | 1.92 | 1.06 | 2.58 | 5.04 | 4.19 |
| Median (prepolicy) | 18.82 | 2.06 | 5.69 | 10.24 | 19.47 | <0.15 | 0.29 | 0.67 | <0.15 |
| Median (postpolicy) | 1.88 | 0.69 | 1.16 | 1.40 | 1.92 | 1.06 | 1.68 | 1.73 | 4.19 |
| Sample size | 13 | 12 | 8 | 8 | 2 | 1 | 6 | 4 | 1 |