Affiner votre recherche
Résultats 281-290 de 374
Distribution and abundance of meiofauna in a subtropical coastal lagoon in the south-eastern gulf of California, Mexico
1997
Noguera, S.E.G. | Hendrickx, M.E. (Estacion Mazatlan, Instituto de Ciencias del Mar y Limnologia, Universidad Nacional Autonoma de Mexico, Ap. Postal 811, 82000, Mazatlan, Sinaloa (Mexico))
Increase of organochlorines and mercury levels in common guillemots Uria aalge during winter in the southern North Sea
1997
Joiris, C.R. | Tapia, G. | Holsbeek, L. (Laboratory for Ecotoxicology and Polar Ecology, Free University of Brussels (VUB), Pleinlaan 2, B-1050 Brussels (Belgium))
Metals, petroleum hydrocarbons and organochlorines in inshore sediments and waters of Mombasa, Kenya
1997
Williams, T.M. | Rees, J.G. | Ferguson, A. | Herd, R.A. | Kairu, K.K. | Yobe, A.C. (British Geological Survey, Keyworth, Nottingham (United Kingdom))
Effects of storage conditions of biological materials on the contents of organochlorine compounds and mercury
1997
Boer, J. de | Smedes, F. (DLO-Netherlands Institute for Fisheries Research, P.O. Box 68, 1970 AB IJmuiden (Netherlands))
Concentrations of Cd, Pb, Zn and Cu in pristine wetlands of the Russian Arctic
1997
Zhulidov, A.V. | Headley, J.V. | Robarts, R.D. | Nikanorov, A.M. | Ischenko, A.A. | Champ, M.A. (Hydrochemical Institute, Federal Services of Russia for Hydrometeorology and Environmental Monitoring, Stachki Ave. 198, Rostov-on-Don 344104 (Russian Federation))
Concentrations of Cd, Pb, Zn and Cu in contaminated wetlands of the Russian Arctic
1997
Zhulidov, A.V. | Headley, J.V. | Robarts, R.D. | Nikanorov, A.M. | Ischenko, A.A. | Champ, M.A. (Hydrochemical Institute-Federal Services of Russia for Hydrometeorology and Environmental Monitoring, Stachki Ave. 198, Rostov-on-Don 344104 (Russian Federation))
Long term evolution of petroleum biomarkers in Mangrove soil (Guadeloupe)
1997
Munoz, D. | Guiliano, M. | Doumenq, P. | Jacquot, F. | Scherrer, P. | Mille, G. (Laboratoire de Chimie Analytique de l'Environnement, Case 312, Faculte des Sciences et Techniques de St Jerome, 13397 Marseille Cedex 20 (France))
The determination by HPLC of PCB and p,p'-DDE residues in marine mammals stranded on the Oregon coast, 1991-1995
1997
Hayteas, D.L. | Duffield, D.A. (Department of Biology, Portland State University, Portland, Oregon 97207 (USA))
Environmental and pollution condition of the Huizache-Caimanero Lagoon, in the north-west of Mexico
1997
Guillermo Galindo, R.J. | Alejandra Medina, J.M. | Cecilio Villagrana, L. | Leonardo Ibarra, C. (Escuela de Ciencias del Mar, Universidad Autonoma de Sinaloa, Paseo Claussen s/n Mazatlan, 82000 Sinaloa (Mexico))
Life cycle assessment : From the beginning to the current state Texte intégral
1997
Klöpffer, Walter
The basic idea of LCA is that all environmental burdens connected with a product or service have to be assessed, back to the raw materials and down to waste removal. Therefore, the term “Life Cycle Assessment” is more precise than the German “Ökobilanz” or the French “écobilan”. This basic idea is undoubtedly true, and LCA is the only environmental assessment tool which avoids positive ratings for measurements which only consists in the shifting of burdens.In the years from 1990 to 1993, SETAC and SETAC-Europe shaped the development of LCA in a series of important workshops culminating in the “Code of Practice” of 1993. The results of these workshops can be illustrated by the famous SETAC-triangle. It shows the basic structure which is now underlying the standardizing activities of ISO: 1. Goal definition and scoping, 2. Inventory analysis, 3. Impact assessment, 4. Improvement assessment.The structure recently defined by ISO differs from the SETAC structure only in the last element which is called “Interpretation” in the international standard 14040. According to ISO, “Improvement Assessment” is only one of the many activities which may follow LCA but is not part of the true analysis.The components of an LCA are described and interpreted in detail, SETAC vs. ISO. Recent developments and activities initiated by ISO, SPOLD and other organisations complete the review.
Afficher plus [+] Moins [-]