Average real-time air quality measures
| Venue | Ave. PM2.5 indoor (µg/m3) | Ave. PM2.5 outdoor (µg/m3) | Ave. PM2.5 in—out (µg/m3) | Ave. CO indoor (ppm) | Ave. CO outdoor (ppm) | Ave. CO in—out (ppm) |
|---|---|---|---|---|---|---|
| WP1 | 385 | 10 | 375 | 10.2 | 0.00 | 10.2 |
| WP2 | 140 | 2 | 138 | 11.4 | 0.00 | 11.4 |
| WP3 | 430 | 10 | 420 | 6.9 | 0.18 | 6.72 |
| WP4 | 299 | 11 | 288 | 1.8 | 0.25 | 1.55 |
| WP5 | 59 | 11 | 48 | 3.1 | 0.75 | 2.35 |
| WP6 | 14 | 10 | 4 | 1.9 | 0.04 | 1.86 |
| CIG A | 219 | 5 | 214 | 0.43 | 0.03 | 0.4 |
| CIG B | 213 | 3 | 210 | 0.37 | 0.01 | 0.36 |
Indoor: average of 60 min.
Outdoor: average of 20 min.
CIG, cigarette smoking venues; WP, waterpipes cafe.