BTEX inside a spinning classroom

Indoors Physical Activities are becoming more frequent. Studies have shown that pollutants concentrations in indoor environments are always greater than in open environments. In indoor locations where regular exercise are performed, there is no concern about air quality, principally when aerobic physical activity are performed. BTEX concentrations in a spinning classroom were measured in this study and were higher than those obtained in an outdoor environment. However, a painting activity of the room revealed that all BTEX concentrations, and in particular Toluene, become much greater. In the day after, the paint concentration of all BTEX increased significantly and the concentration of toluene was 274.9 µg/m³. The BTEX concentration increased after all room was painted, and this increase was from 91% to benzene, 907% for toluene, 182% to ethylbenzene, 121% for m+p-xylene and 128% for o-xylene.