Schock S C, Brady-Roberts E G, Odin M
U.S. Environmental Protection Agency, National Center for Environmental Assessment, Cincinnati, OH 45268, USA.
Drug Chem Toxicol. 1997 Nov;20(4):369-74. doi: 10.3109/01480549709003893.
The Environmental Protection Agency's National Center for Environmental Assessment is currently revising and updating its approach to modeling the health risks from indirect exposure to combustor emissions. The updated method is intended to provide the necessary tools for estimating these health risks and to provide the necessary algorithms for the calculation of contaminant concentrations in water bodies, soil, and the terrestrial and aquatic food chains resulting from the deposition and transfer of atmospheric pollutants. Significant additions to the approach include the expansion of the application of exposure methods at a site, the description of procedures for defining the study population at a site, and ways to develop distributions of individual risk for members of the study population. This paper focuses on the changes in the human exposure scenarios of the update method and presents an overview of the development of an exposure scenario.
美国环境保护局的国家环境评估中心目前正在修订和更新其对燃烧器排放间接暴露健康风险进行建模的方法。更新后的方法旨在提供估算这些健康风险所需的工具,并提供计算因大气污染物沉积和转移导致水体、土壤以及陆地和水生食物链中污染物浓度的必要算法。该方法的重大改进包括扩大现场暴露方法的应用、描述现场研究人群定义程序以及确定研究人群成员个体风险分布的方法。本文重点关注更新方法中人类暴露情景的变化,并概述暴露情景的发展情况。