Funk L M, Sedman R, Beals J A, Fountain R
Department of Mathematical Sciences, Portland State University, Oregon 97207, USA.
Risk Anal. 1998 Feb;18(1):47-56. doi: 10.1111/j.1539-6924.1998.tb00915.x.
Using distributions of time spent at various ventilation levels, ranges of inhalation exposure in the population can be established. Distributions of exposure time were determined using results of a study by the California Air Resources Board (CARB) which focused on time spent by humans participating in various activities and the locations where the activities occurred. The daily at-home activities from the CARB study were assigned to one of three ventilation levels, generating aggregate time periods. Distinct age and gender populations were identified, and distributions for aggregate time were established for these populations at each of the ventilation levels. In addition to aggregate time spent at home, distributions for various ages and genders were established for aggregate time spent at school and work. By combining distributions of aggregate time with corresponding ventilation rates, the distribution of inhalation rates can be established for at home, at work, and at school exposures.
利用在不同通风水平下所花费时间的分布情况，能够确定人群中吸入暴露的范围。暴露时间分布是根据加利福尼亚空气资源委员会（CARB）的一项研究结果确定的，该研究聚焦于人类参与各种活动所花费的时间以及这些活动发生的地点。CARB研究中的日常居家活动被分配到三个通风水平之一，从而生成总计时间段。确定了不同的年龄和性别群体，并为这些群体在每个通风水平下建立了总计时间的分布。除了在家中花费的总计时间外，还针对在学校和工作场所花费的总计时间，为不同年龄和性别建立了分布。通过将总计时间分布与相应的通风率相结合，就可以确定在家中、工作场所和学校暴露时的吸入率分布。
