Dearfield Kerry L, Bender Edward S, Kravitz Michael, Wentsel Randy, Slimak Michael W, Farland William H, Gilman Paul
U.S. Environmental Protection Agency, Office of the Science Advisor, 1200 Pennsylvania Ave., NW, Washington, DC 20460, USA.
Integr Environ Assess Manag. 2005 Jan;1(1):73-6. doi: 10.1897/ieam_2004a-023.1.
Recently, the U.S. Environmental Protection Agency examined its current risk-assessment principles and practices. As part of the examination, aspects of ecological risk-assessment practices were reviewed. Several issues related to ecological risk assessment were identified, including the use of organism-level versus population-level attributes to characterize risk, the possible opportunities associated with the increased use of probabilistic approaches for ecological risk assessment, and the notion of conservatism in estimating risks. The agency examination provides an understanding of current practices and is intended to begin a dialogue in which the risk assessment community can engage in addressing the identified issues to improve and enhance ecological risk assessment.
最近，美国环境保护局审视了其当前的风险评估原则与做法。作为审视的一部分，对生态风险评估做法的各个方面进行了审查。确定了若干与生态风险评估相关的问题，包括使用生物体层面与种群层面的属性来表征风险、生态风险评估中更多使用概率方法可能带来的机遇，以及风险估计中的保守性概念。该机构的审视有助于了解当前的做法，并旨在开启一场对话，让风险评估界能够参与讨论已确定的问题，以改进和加强生态风险评估。
