Table 2. Exposures in the 14 categories of activity as determined by the mixed model analysis of the nine samples collected over 24 hours by each subject.
| Activity | n | Exposure | p | |
|---|---|---|---|---|
| pg/m3, GM (95% CI) | Ratio (95% CI) | |||
| House, early morning | 14 | 313 (118-832) | 1.54 (0.57-4.14) | 0.4 |
| House, active in day | 25 | 226 (102-495) | 1.07 (0.47-2.45) | 0.9 |
| House, relax late evening | 15 | 347 (134-896) | 1.74 (0.67-4.58) | 0.3 |
| House, bedroom overnight | 13 | 45 (17-117) | 0.17 (0.065-0.45) | <0.001 |
| Indoor, work, office | 17 | 106 (43-262) | 0.44 (0.17-1.11) | 0.08 |
| Indoor, work, laboratory | 4 | 135 (19-960) | 0.62 (0.09-4.49) | 0.68 |
| Indoor, social situation | 8 | 273 (76-989) | 1.30 (0.36-4.76) | 0.7 |
| Outside, social | 14 | 163 (61-441) | 0.74 (0.27-2.02) | 0.5 |
| Lunch, not at work | 10 | 168 (53-527) | 0.76 (0.24-2.43) | 0.6 |
| Travel, car | 12 | 474 (163-1383) | 2.43 (0.82-7.15) | 0.1 |
| Travel, public transport | 7 | 1117 (289-4314) | 5.80 (1.50-22.48) | 0.01 |
| Travel, walk, cycle | 7 | 377 (92-1535) | 1.82 (0.44-7.52) | 0.4 |
| Domestic cleaning | 8 | 340 (89-1296) | 1.64 (0.42-6.41) | 0.5 |
| House, bedroom, relax in day | 4 | 673 (110-4112) | 3.28 (0.53-20.16) | 0.2 |
Results of the mixed-model analysis of the nine samples showing the exposures (pg/m3) and the ratios of geometric mean exposure of that activity compared to geometric mean of all the other activities, for the 14 categories of activities. The total number of occurrences of each activity is shown as 'n'