4USEPA. Clinch and Powell Valley Watershed Ecological Risk Assessment, EPA/600/R-01/050, 2002
5Sergeant A. Management Objectives for Ecological Risk Assessment Developments at US EPA. Environmental Science & Policy, 2000, 3: 295-298
6Power M, McCarty LS. Trends in the Development of Ecological Risk Assessment and Management Framework. Human and Ecological Risk Assessment, 2002, 8(1):7-18
7Claassen M. Ecological Risk Assessment as a Framework for Environmental Impact Assessment. Water Science Technology, 1999, 39(10-11): 151-154
8UKDOE. A Guide to Risk Assessment and Risk Management for Environmental Protection. Her Majesty's Stationery Office, London, UK, 1995
9MHPPE. Premises for Risk Management: Risk Limits in the Context of Environmental Policy. Directorate General for Environmental Protection. The Netherlands: The Hague, 1989
10Peter Calow. Ecological Risk Assessment: Risk for What How do We Decide Ecotoxicology and Environmental Safety, 1998(40):15-18
