Table.
PM2.5 levels (in μg/m3) in the sampled venues in Cairo and Giza, Egypt
| Venue | Air samples n | Mean ± SD | Median [IQR] | Maximum | Minimum |
|---|---|---|---|---|---|
| Hospitality settings | |||||
| Restaurants (n = 5) | 240 | 297.9 ± 183.9 | 231 [216] | 865 | 105 |
| Cafes (n = 15) | 780 | 478.4 ± 225.2 | 444 [292] | 1313 | 100 |
| Ramadan tents (n = 5) | 449 | 612.6 ± 385.7 | 590 [531] | 1723 | 111 |
| Public venues | |||||
| Airport (n = 1) | 25 | 171.5 ± 41.1 | 178 [35] | 240 | 80 |
| University buildings (n = 1) | 16 | 223.0 ± 13.4 | 219 [28] | 244 | 207 |
| Courts (n = 2) | 42 | 704.3 ± 316.6 | 743 [488] | 1297 | 80 |
| Transport vehicles (n = 8) | 200 | 346.4 ± 217.0 | 320 [149] | 1330 | 72 |
| Government offices (n = 3) | 112 | 321.4 ± 345.8 | 204 [109] | 1176 | 76 |
| Open air venues | |||||
| Ambient air (n = 22) | 485 | 236.8 ± 134.4 | 209 [222] | 730 | 47 |
| Village center (n = 1) | 93 | 102.5 ± 25.0 | 96 [27] | 236 | 68 |
| Sidewalks (n = 3) | 92 | 253.2 ± 144.1 | 240 [145] | 1003 | 74 |
| Crosswalks (n = 28) | 631 | 401.3 ± 260.0 | 366 [367] | 1399 | 41 |
| Smoking-restricted venues | |||||
| Mosque (n = 1) | 21 | 81.1 ± 7.2 | 80 [9] | 96 | 72 |
| ESPRI office (n = 1) | 109 | 72.1 ± 9.8 | 70 [13] | 106 | 55 |
PM2.5 = particulate matter <2.5 μm in diameter; SD = standard deviation; IQR = interquartile range; ESPRI = Egyptian Smoking Prevention Research Initiative.