Assessment of exposure to airborne aerosol and bio-aerosol particles and their deposition in the respiratory tract of subway metro passengers and workers

Abstract This research paper presents an investigative study of airborne aerosol particles (PM2.5) and bio-aerosol particles (bacteria and fungi) inside subway metro stations and their deposition dose in the respiratory tract of exposed passengers and workers. In this study, aerosol monitoring and bio-aerosol sampling were conducted along the metro line and inside metro stations to determine the daily average exposure levels of passengers and workers. The deposition of aerosol and bio-aerosol particles in the respiratory tract of healthy adult males and females was calculated using Multipath Particles Dosimetry Model. The exposure assessment revealed that exposure to fine airborne particles (