Influence of respiratory depth on the deposition ratio of PAHs of airborne particles in the human respiratory tract.
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概要
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For elucidation of the actual state of human exposure to carcinogens and its relative compounds in airborne particles, influence of respiratory depth on the deposition ratio of PAHs to respiratory tract was estimated. The particles in exhalation were collected using Hans Rudolph mask, and those in the outdoor air corresponding to inhaled air were collected using the low volume air sampler of low noise model. The concentrations of PAHs in the collected particles were determined by column concentration HPLC/spectrofluorometric detection method. From the results, the deposition ratio of BaP for intentional deep breathing (58.5±12.7%) was about 10% higher than that for shallow breathing (47.2±12.6%). The deposition ratios for shallow breathing are similar to those for diesel exhaust and indoor air contaminated by side stream of tobacco smoke.
- 社団法人 大気環境学会の論文
社団法人 大気環境学会 | 論文
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