Search for dissertations about: "Ecological risk assessment"
Showing result 1 - 5 of 32 swedish dissertations containing the words Ecological risk assessment.
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1. A Procedure for Ecological Tiered Assessment of Risks (PETAR)
Abstract : Institutions in developed countries have proposed several Ecological Risk Assessment (ERA) procedures, and the majority of study cases have been carried out there. The use of (often expensive) existing ERA procedures in developing countries is questionable given their limited resources and scarce background information of relevance for risk assessments. READ MORE
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2. A Deep Dive into Sediments : Exploring approaches to assess environmental risks and achieving environmental goals in management of contaminated sediments in Sweden
Abstract : Contaminated sediments are common, especially near urban and industrialized areas, and they can have negative ecological effects. In three studies, I explore the challenges for environmental management of contaminated sediments, focusing on environmental risk assessment (ERA) in Sweden. READ MORE
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3. Managing Complex Environmental Risks for Sustainable Development
Abstract : The thesis is concerned with the problematic question on how to manage complex environmental risks in a way that promotes sustainable development. While there are some positive signs on progressive and successful environmental policy, environmental change resulting from human activities still causes severe problems and risks worldwide. READ MORE
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4. Ecological effects of pesticides in freshwater model ecosystems
Abstract : In this thesis I have investigated the effects of pesticide exposure on the ecosystem level using various types of experimental ecosystems, i.e. microcosms. The direct effect of exposure to cyperemthrin, a pyretroid insecticide, was a rapid decrease of crustancean zooplankton in enclosures in a lake. READ MORE
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5. Radionuclides in the Baltic Sea : Ecosystem models and experiments on transport and fate
Abstract : Manmade radionuclides have been introduced to the environment for almost a century. The main source has been the nuclear weapons testing programmes, but accidental releases from the nuclear power production industries have also contributed. The risk to humans from potential releases from nuclear facilities is evaluated in safety assessments. READ MORE