Mean and SD of bioaerosols based on CFU m−3 in different sampling locations in different seasons: (A) Concentration of bacterial aerosol in spring, (B) Concentration of bacterial aerosol in winter, (C) Concentration of bacterial aerosol in autumn, (E) Concentration of fungal aerosol in spring, (F) Concentration of fungal aerosol in winter, and (G) Concentration of fungal aerosol in autumn.