Abstract (EN):
Objective: This work assessed particulate matter (PM 1, PM 2.5, PM 5 and PM 10 ) and thermal comfort parameters (temperature, relative humidity) in indoor air of fitness centre, under restricted ventilation and occupancy scenarios. Background: Exercising on regular basis provides countless health benefits, which might be countered if done in environments with poor air. Methods: PM was continuously (24 h) monitored for two weeks in one fitness club situated Oporto Metropolitan Area, Portugal. Various indoor spaces (body building and cardio fitness areas, studios) were assessed. Results: Across all spaces, PM 10 ranged 13¿298 ¿gm-3, (mean 56 ¿gm-3 ) exceeding Portuguese limit of 50 ¿gm-3. PM 5 (4¿196 ¿gm-3; 42 ¿gm-3 ) were highly correlated with PM 10 (|rs| = 0.937), whereas PM 2.5 (3.8¿49 ¿gm-3; 14 ¿gm-3 ) and PM 1 (1.6¿26 ¿gm-3; 7.5 ¿gm-3 ) accounted for, respectively, 25% and 15% of PM 10. Finally, relative humidity was well below the indicated guideline range. Conclusions: The obtained results suggest possible inhalation risks and discomforts for the occupants of the respective fitness centre. Reasonable measures should be used to regulate indoor air quality, even under restricted conditions, in order to ensure safe and comfortable environments. © 2022, The Author(s), under exclusive license to Springer Nature Switzerland AG.
Language:
English
Type (Professor's evaluation):
Scientific