摘要
吸入因子的概念是从人体健康角度评价污染物危害的一种方法。该文概述了此概念的历史发展与现实意义,并对其定义计算进行了分析探讨,认为其计算方法大致可分为以空间区域为研究主体和以人群为研究主体两种,而后者更适合于汽车尾气污染吸入因子的计算。在汽车尾气污染吸入因子的计算中,需要对相关人群进行调查研究,将其时间-活动方式与微环境浓度相结合,这其中,微环境暴露浓度模型的建立将是一个关键。
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.
出处
《环境与健康杂志》
CAS
CSCD
北大核心
2006年第2期182-184,共3页
Journal of Environment and Health
基金
国家环保总局资助项目
关键词
空气污染
汽车尾气
吸入因子
Air pollution
Vehicle emission
Intake fraction
