Rosana Moraes,^* Sara Elfvendahl,^** Henrik Kylin,^*** Sverker Molander<sup>****


*</sup>Rosana Moraes has a PhD from the Environmental Systems Analysis Department, Chalmers University of Technology. Her research project is an ecological risk assessment of human settlements, agriculture, and mining on the Parque Estadual Turístico do Alto Ribeira (PETAR), Brazil, which includes the application of a relative risk model for multiple stressor and regional-scale risk assessment. Her address: Environmental Systems Analysis, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden. Rosana.Moraes@esa.chalmers.se.
^**Sara Elfvendahl is a doctoral student at the Department of Environmental Assessment, Swedish University of Agricultural Sciences. Her research focuses on contamination from obsolete stocks of pesticides in developing countries. Her address: Department of Environmental Assessment, Swedish University of Agricultural Sciences, PO Box 7050, SE-750 07 Uppsala, Sweden. Sara.Elfvendahl@ma.slu.se
^***Henrik Kylin is associate professor and senior scientist in organic environmental chemistry at the Department of Environmental Assessment, Swedish University of Agricultural Sciences. He works with global and regional distribution of organic contaminants, obsolete stocks of pesticides, and the development of low-tech/low-cost analytical methods of organic contaminants for developing countries. His address: Department of Environmental Assessment, Swedish University of Agricultural Sciences, PO Box 7050, SE-750 07 Uppsala, Sweden. Henrik.Kylin@ma.slu.se
^****Sverker Molander is lecturer at the Environmental Systems Analysis Department, Chalmers University of Technology. He works with ecological risk analysis and the development of simple assessment systems for chemical substances. His address: Environmental Systems Analysis, Chalmers University of Technology, SE-412 96, Gothenburg, Sweden. Sverker.Molander@esa.chalmers.se