Table 2 Exposure measurements during the road test and in the clean room
Endpoint | Road test | Clean room | p-value* |
|---|---|---|---|
Average PM10, μg/m3 | 62.8 (23.6) | 7.6 (3.3) | <0.001 |
Average PM2.5, μg/m3 | 24.2 (8.7) | 2.0 (0.78) | <0.001 |
Average UFP, particles/cm3 | 28,867 (8479) | 496 (138) | <0.001 |
Duration of cycling, min | 20.8 (1.6) | 20.2 (1.9) | 0.20 |
Temperature,°C | 15.2 (1.6) | 21.6 (1.0) | <0.001 |
Relative humidity,% | 57.0 (9.5) | 45.7 (6.6) | <0.001 |
Heart rate, beats/min | 131 (15.0) | 131 (14.6) | 0.90 |
% of maximal heart rate | 74.0% (8.6) | 74.1% (8.8) | 0.90 |