Libri di Lars Carlsen - libri Vita e Pensiero

Lars Carlsen

Titoli dell'autore

Qualification of the DPSIR approach by partial order ranking digital Qualification of the DPSIR approach by partial order ranking
Anno: 2011
The DPSIR (Driving forces, Pressures, State, Impacts, Responses) framework takes into account a chain of past and present situations as well as suggests future activities as responses aiming at improving the environmental health. Thus, DPSIR constitutes an advantageous directive for integrated environmental assessments. The driving forces are centered on economic sectors and human activities, i.e. activities in the society that directly or indirectly are causing the pressures on the environment. The pressures on the environment develop from the human activities that are associated with the above mentioned ‘needs’ (driving forces). The state refers to the environmental and human health as a result of the pressures. The impacts refer to environmental and economic factors changing the physical, chemical or biological states of the environment as well as impacts on human health. The responses comprise a priori the reactions by authorities, regulators or society in general to the changes induced through the other element in the DPSIR chain. The paper will discuss the qualification of the DPSIR approach by applying partial order ranking (POR) to the single stages of the assessment, eventually applying the hierarchical partial ranking (HPOR) methodology in order to select the more appropriate responses. Further the paper will describe the possible involvement of expert groups in the assessment process applying a partial order based DPSIR approach. Keywords: DPSIR, Integrated Environmental Assessment, Partial Order Ranking, Hasse Diagrams.
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Risk assessment of chemicals in the river Main (Germany): application of selected partial order ranking tools digital Risk assessment of chemicals in the river Main (Germany): application of selected partial order ranking tools
Anno: 2011
Assessments of the behavior and impact of chemicals in the environment typically require a multicriteria approach as a multitude of parameters has to be taken into account in order to disclose the full picture. In the present paper we demonstrate how selected partial order ranking tools can be applied as decision support. As an illustrative example a series of 14 chemicals, belonging to 4 different classes of chemicals, found in the river Main (Germany) have been assessed based on 3 parameters, i.e. volatilization, sedimentation and advection, determinative for their exposure behavior. In addition to ordinary partial order ranking more advanced tools as average ranks and dominance analysis have been applied leading to conclusions as to which class of chemicals should receive primary attention. Further, the analyses suggest directions for risk management such as pointing to specific sources for the most problematic pollutants. Keywords: Partial Order Ranking, Hasse Diagram Technique, Average Rank, Dominance Analysis, Environmental Impact Assessment, EIA, River Main.
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