ABSTRACT
Human exposure factor is one of the important parameters in environmental health risk assessment models. Proper selection of the exposure factors will contribute significantly to improve the accuracy of health risk assessment. This paper reviewed recent application of some key exposure factors for environmental health risk assessment in the USA, EU, Japan, etc. Some suggestions were proposed on focuses and trends of the related research in near future in China, based on the further analysis for the exposure factors of Chinese population.
ABSTRACT
Objective To examine the relationship of exposure and potential dose of human exposed to indoor and outdoor air pollutants. Methods The definition and calculation methods of exposure and potential dose were analyzed and compared. Personal exposure and potential dose of formaldehyde and carbon monoxide in indoor and outdoor air were calculated by scenario evaluation approach respectively, and the relationships between exposure and potential dose were analyzed also. Results Potential dose could much better accurately reflect the amount of air pollutants entering human body through respiratory tract than exposure did. Exposures and potential doses of human exposed to formaldehyde and carbon monoxide in indoor and outdoor air were significantly correlated in some cases, but not correlated well in other cases. Conclusion Potential dose might be more accurately linked to health effects of air pollutants than exposure did.