行政院國家科學委員會專題研究計畫期中進度報告:自然通風建築中不同粒徑顆粒物質室內/室外/人體暴露之關係(2/3)

The objective of this project in the second year is to
develop a size-dependent compartmental model to
describe airborne particulate matter (PM) exposure
dynamics in human respiratory tract (HRT) in
ventilated buildings. HRT was divided into five
major compartments: (1) the nasal passage (ET1); (2)
the pharynx (ET2); (3) the bronchial region (BB); (4)
the bronchiolar region (bb); and (5) the
alveolar-interstitial region (AI). Transport
mechanisms of airborne PM in HRT include
respiration, gravitational settling, turbulent diffusive
deposition, inertial impaction, interception deposition
loss, and PM clearance. We hope to estimate airborne
PM mass lung/indoor ratios in the bronchial region,
the bronchiolar region, and the alveolar-interstitial
region, deposition fraction and exposure dose in the
size ranges 0.01–10 µm via nosal or oral breathing in the near future.