COPD: an inhaled corticosteroid-resistant, oral corticosteroid-responsive condition.

parking area and inside the Bella Center, with a level of 6.0¡1.7 and 3.0¡0.9 mg?m, respectively. Peak values were 12.5 mg?m and 12.0 mg?m, respectively. However, outside in front of the Bella Center with smokers, mean PM2.5 was 17.8¡7.5 mg?m with a peak of 98.9 mg?m (p,0.03, as compared with inside the venue), which is a step down in AQI. PM2.5 along the motorway was only 4.6¡0.7 mg?m with a peak value of 8.7 mg?m. Inside the restaurant, high concentrations of PM2.5 were found (165.1¡8.5 mg?m) with a peak value of 372.2 mg?m, with a ‘‘very unhealthy’’ AQI. Official outdoor PM2.5 mean¡SEM recorded in the town for the time interval of all the measurements was 5.7¡0.4 mg?m. Overall, mean values observed with smokers in front of the Bella Center and inside the restaurant were significantly higher than the outdoor parking place, indoor Bella Center, motorway and Copenhagen outdoor official data (p,0.05 and p,0.001, respectively).