Intake Fraction: an Evaluation of Vehicle Emission Health Effects
- VernacularTitle:吸入因子:汽车尾气污染健康影响的一种评价方法
- Author:
Taosheng JIN
;
Lixin FU
;
Xuan DU
- Publication Type:Journal Article
- Keywords:
Air pollution;
Vehicle emission;
Intake fraction
- From:
Journal of Environment and Health
1992;0(02):-
- CountryChina
- Language:Chinese
-
Abstract:
Intake fraction is a new concept applied in assessing human health effect of pollutants. In the present paper, the history and practical use of it were reviewed, and then the calculation of it was also analyzed. After illustrating and discussing previous approaches for estimating intake fraction, the calculation can be classified into two sorts: one is taking the spatial area as the object, and the other is taking the people as the object. The latter is more fitful to estimate the intake fraction of mobile emission, in which it is necessary to investigate the related population and then combine the time-activity patterns with the microenvironment concentrations, in addition, modeling microenvironmental concentrations is critical for the calculation of intake fraction.
