An algorithm to calculate Cλ=1 for population-level ecological risk assessment

摘要：

By striking a balance between tractability and ecological relevance, the populationlevel ecological risk assessment (PLERA) is playing an important role for risk management of chemicals, and PLERA entails calculating Cλ=1, the critical concentration whereby the finite population growth rate (λ) is reduced to unity. Here an asymptotic convergence algorithm was put forward to numerically calculate Cλ=1 value using quasi-steady state presumption. This algorithm was compared to the interpolation algorithm with the case study of nonylphenol on Japanese medaka (Oryzias latipes), and the results indicated that the former algorithm outperformed the latter with respect to accuracy, precision and computation time.

关键词： Algorithm Chemical Management Ecological risk assessment Population growth rate Population-level

作者: Yaobin Meng Liangxia Shi Peijun Shi Bin-Le Lin

作者单位: Academy of Disaster Reduction and Emergency Management, Beijing Normal University, China Key Laborat National Institute for Advanced Industrial Science and Technology, Japan.

会议类型: 国际会议

会议名称: The 2nd International Conference on Risk Analysis and Crisis Response(第二届风险分析与危机反应国际学术研讨会)

会议地点: 北京

会议语种:英文

页码: 641-646

在线出版日期: 2009-10-19（万方平台首次上网日期，不代表论文的发表时间）