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Результаты 3011-3020 из 62,508
Increasing levels and biomagnification of persistent organic pollutants (POPs) in Antarctic biota Полный текст
2004
Goerke, Helmut | Weber, Kurt | Bornemann, Horst | Ramdohr, S. | Plötz, Joachim
Representatives of the Antarctic food web (krill, cephalopod, fish, penguin, seal) of the area around Elephant Island and from the Weddell Sea were analysed for the most recalcitrant organochlorine compounds. Due to sorption of the compounds to sinking particles and accumulation in sediments, two benthic fish species (Gobionotothen gibberifrons, Chaenocephalus aceratus) feeding on benthos invertebrates and fish reflected significantly increasing concentrations within a decade (1987-1996), while a benthopelagic species (Champsocephalus gunnari) feeding on krill did not. In the pelagic food chain, lipid normalised concentrations of all compounds increased from Antarctic krill to fish proving that biomagnification of highly lipophilic pollutants (log octanol-water partition coefficient > 5) occurs in water-breathing animals. As top predators Weddell and southern elephant seals (Leptonychotes weddellii, Mirounga leonina) biomagnified the POPs relative to krill 30 to 160 fold with the exception of hexachlorobenzene, the levels of which were lower than in fish indicating its intense specific elimination.
Показать больше [+] Меньше [-]Element removal in harvested tree biomass: scenarios for critical loads in Wallonia, south Belgium Полный текст
2001
Bosman, Bernard | Remacle, Jean | Carnol, Monique
peer reviewed | The critical load concept is now widely used as a tool for developing emission control policies in Europe. As a signatory country of the Convention of Long-Range Transboundary Air Pollution, critical loads for acidity, nutrient nitrogen, nitrogen and sulphur have been calculated for the Flemish and Walloon regions in Belgium. This paper describes the methodology used for estimating critical loads for forest soils in the Walloon region according to the Steady-State Mass Balance equations. As an example the methodology was applied to the catchment `Waroneu', situated in a sensitive area of the Haute Ardenne. Main input parameters to the equations were derived from precipitation and runoff data of the catchment study. Improved estimates of nitrogen uptake (Nu) and base cation uptake (BCu) were obtained by intensive sampling of Picea abies and Quercus robur trees. Nutrient contents (Ca, Mg, K, N) and nutrient to nitrogen ratios of Picea abies reflected the poor soil quality at a site with high N deposition. Quercus robur nutrient contents increased from stem to higher order branches with a high proportion of nutrients located in the bark. However the simulation of stem only harvesting had a minor effect on critical loads. Measured wood densities were lower than reported literature values with a main effect on Nu and BCu estimates. The use of recommended default values and/or data derived from the experimental site resulted in a wide range of critical loads, some of which were largely overestimated. Results demonstrated the importance of site specific data for critical load calculations.
Показать больше [+] Меньше [-]Utilisation en écotoxicologie des dérives adaptatives aux stress chimiques chez queques invertébrés modèles Полный текст
2000
Conrad, Claire | Tares, Sophie | Brun-Barale, Alexandra | Bergé, Jean Baptiste | BRIDE, Jean-Marc | Cuany, André | Amichot, Marcel
The ocean as part of the global carbon cycle Полный текст
1994
Wolf-Gladrow, Dieter
Role of Armillaria in the decline of silver fir Полный текст
1994
Delatour, Claude | Guillaumin, J.J.
Relation avec les conditions ecologiques dans les Vosges Полный текст
1993
Landmann, Guy | Becker, Michel | RIOM, J. | Michaux, Arnaud | Rameau, J.C. | Bonneau, M.
Relevance of flounder caging and proteomics to explore the impact of a major industrial accident caused by fire on the Seine estuarine water quality Полный текст
2024
Laurent, Jennifer | Diop, Mamadou | Amara, Rachid | Fisson, Cédric | Armengaud, Jean | Labadie, Pierre | Budzinski, Hélène | Couteau, Jérôme | Maillet, Géraldine | Le Floch, Stéphane | Laroche, Jean | Pichereau, Vianney | Laboratoire des Sciences de l'Environnement Marin (LEMAR) (LEMAR) ; Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS) | Laboratoire d’Océanologie et de Géosciences (LOG) - UMR 8187 (LOG) ; Institut national des sciences de l'Univers (INSU - CNRS)-Université du Littoral Côte d'Opale (ULCO)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [Ile-de-France]) | Université du Littoral Côte d'Opale (ULCO) | Groupement d’Intérêt Public Seine-Aval (GIP-Seine-Aval) | Médicaments et Technologies pour la Santé (MTS) ; Université Paris-Saclay-Institut des Sciences du Vivant Frédéric JOLIOT (JOLIOT) ; Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) | Service de Pharmacologie et Immunoanalyse (SPI) ; Médicaments et Technologies pour la Santé (MTS) ; Université Paris-Saclay-Institut des Sciences du Vivant Frédéric JOLIOT (JOLIOT) ; Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université Paris-Saclay-Institut des Sciences du Vivant Frédéric JOLIOT (JOLIOT) ; Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) | Laboratoire Innovations technologiques pour la Détection et le Diagnostic (LI2D) ; Service de Pharmacologie et Immunoanalyse (SPI) ; Médicaments et Technologies pour la Santé (MTS) ; Université Paris-Saclay-Institut des Sciences du Vivant Frédéric JOLIOT (JOLIOT) ; Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université Paris-Saclay-Institut des Sciences du Vivant Frédéric JOLIOT (JOLIOT) ; Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Médicaments et Technologies pour la Santé (MTS) ; Université Paris-Saclay-Institut des Sciences du Vivant Frédéric JOLIOT (JOLIOT) ; Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université Paris-Saclay-Institut des Sciences du Vivant Frédéric JOLIOT (JOLIOT) ; Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) | Environnements et Paléoenvironnements OCéaniques (EPOC) ; École Pratique des Hautes Études (EPHE) ; Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Bordeaux (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) | TOXEM | Centre de documentation de recherche et d'expérimentations sur les pollutions accidentelles des eaux (Cedre) ; Cedre | ANR-17-EURE-0015,ISBlue,Interdisciplinary Graduate School for the Blue planet(2017)
International audience | On September 26th 2019, a major fire occurred in the Lubrizol factory located near the Seine estuary, in RouenFrance. Juvenile flounders were captured in the Canche estuary (a reference system) and caged one month in the Canche and in the Seine downstream the accident site. No significant increases of PAHs, PCBs and PFAS was detected in Seine vs Canche sediments after the accident, but a significant increase of dioxins and furans was observed in water and sewage sludge in the Rouen wastewater treatment plant. The proteomics approach highlighted a dysregulation of proteins associated with cholesterol synthesis and lipid metabolism, in fish caged in the Seine. The overall results suggested that the fire produced air borne dioxins and furans that got deposited on soil and subsequently entered in the Seine estuarine waters via runoff; thus contaminating fish preys and caged flounders in the Seine estuary.
Показать больше [+] Меньше [-]Microbial contamination in the coastal aquaculture zone of the Ba Lat river mouth, Vietnam Полный текст
2023
Le, Nhu Da | Hoang, Thi Thu Ha | Nguyen, Thi Mai Huong | Rochelle-Newall, Emma | Pham, Thi Minh Hanh | Phung, Thi Xuan Binh | Duong, Thi Thuy | Nguyen, Thi Anh Huong | Dinh, Le Minh | Duong, Thanh Nghi | Nguyen, Tien Dat | Le, Thi Phuong Quynh | University of Science and Technology of Hanoi (USTH) | Vietnam Academy of Science and Technology (VAST) | Institut d'écologie et des sciences de l'environnement de Paris (iEES Paris) ; Institut de Recherche pour le Développement (IRD)-Sorbonne Université (SU)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)
International audience | Contamination of aquaculture products by pathogenic organisms is a major concern in areas where this activity is of high economic importance. The abundances of total coliforms (TC), Escherichia coli (EC) and faecal strepto-cocci (FS) (in CFU.100 mL-1) in seawater in the Red River coastal aquaculture zone were determined. The results showed TC numbers (200 to 9100; average 1822), EC (<100 to 3400; average 469) and FS (<100 to 2100; average 384), of which TC exceeded the allowable threshold of the Vietnam regulation for coastal aquaculture water. TC and EC numbers in 4 wastewater types (domestic, livestock farming sewage, agricultural runoff, and mixed sewage canals) were investigated and revealed the importance of point sources of faecal contamination in seawater. These results underline the need to reduce the release of untreated wastewater and to put into place seawater microbial quality monitoring in areas where the development of sustainable aquaculture is an objective.
Показать больше [+] Меньше [-]Floating marine macro litter: density reference values and monitoring protocol settings from coast to offshore. Results from the MEDSEALITTER project Полный текст
2020
David, Léa | Aguilar, Alex | Atzori, Fabrizio | Borrell, Asunción | Campana, Ilaria | Carosso, Lara | Crosti, Roberto | Darmon, Gaëlle | Gambaiani, Delphine | Di-Méglio, Nathalie | Di Vito, Stefania | Frau, Francesca | Garcia-Garin, Odei | Orasi, Arianna | Revuelta, Ohiana | Roul, Marine | Miaud, Claude | Vighi, Morgana | Arcangeli, Antonella | EcoOcéan Institut [France] | Universitat Autònoma de Barcelona = Autonomous University of Barcelona = Universidad Autónoma de Barcelona (UAB) | Auteur indépendant | Capo Carbonara MPA | Istituto Superiore per la Protezione e la Ricerca Ambientale (ISPRA) | Centre d’Ecologie Fonctionnelle et Evolutive (CEFE) ; Université Paul-Valéry - Montpellier 3 (UPVM)-École Pratique des Hautes Études (EPHE) ; Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [Occitanie])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro - Montpellier SupAgro ; Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro) | Legambiente ONLUS
International audience | Monitoring Floating Marine Macro Litter (FMML) is a global priority, stressed within international programs, and regulated for the European Seas by the Marine Strategy Framework Directive. Although some well-defined common protocols exist for the assessment of beach litter and ingested litter, methodologies for FMML monitoring still vary, leading to some inconsistent results and hampering the global assessment of this threat. Within the MEDSEALITTER project (2016–2019), field experiments were implemented to define optimal monitoring parameters for FMML visual monitoring at different spatial scales, by assessing the influence of platform speed, strip width, observers experience, weather conditions, and litter size on its detectability. Along with the results of these experiments, we present the FMML density ranges detected across the over 20,000 km surveyed, highlighting a decreasing gradient from river mouths to coastal areas and the open sea, and providing a valuable contribution to the assessment of FMML in the Mediterranean Sea.
Показать больше [+] Меньше [-]Microbial community structure and activity in trace element-contaminated soils phytomanaged by Gentle Remediation Options (GRO) Полный текст
2017
Touceda-González, M. | Renella, G. | Giagnoni, L. | Sessitsch, A. | Brader, G. | Kumpiene, J. | Dimitriou, I. | Eriksson, J. | Friesl-Hanl, W. | Galazka, R. | Janssen, J. | Mench, Michel | Muller, I. | Neu, S. | Puschenreiter, M. | Siebielec, G. | Vangronsveld, J. | Kidd, P.S. | Instituto de Investigaciones Agrobiológicas de Galicia (IIAG) ; Consejo Superior de Investigaciones Cientificas [España] = Spanish National Research Council [Spain] (CSIC) | Department of Agri-Food Production and Environmental Sciences ; Università degli Studi di Firenze = University of Florence = Université de Florence (UniFI) | Center for Health & Bioresources ; Austrian Institute of Technology (AIT) | Waste Science & Technology ; Luleå University of Technology = Luleå Tekniska Universitet (LUT) | Department of Crop Production Ecology ; Swedish University of Agricultural Sciences = Sveriges lantbruksuniversitet (SLU) | Departement of Soil and Environment ; Swedish University of Agricultural Sciences = Sveriges lantbruksuniversitet (SLU) | Austrian Institute of Technology (AIT) | Institute of Soil Science and Plant Cultivation (IUNG) | Centre for Environmental Sciences ; Hasselt University (UHasselt) | Biodiversité, Gènes & Communautés (BioGeCo) ; Institut National de la Recherche Agronomique (INRA)-Université de Bordeaux (UB) | Saxon State Office for Environment, Agriculture and Geology | Department of Forest and Soil Sciences ; Universität für Bodenkultur Wien = University of Natural Resources and Life Sciences [Vienne, Autriche] (BOKU)-Institute of Silviculture | ANR-13-CDII-0005,PHYTOCHEM,Développement de procédés chimiques éco-innovants pour valoriser les biomasses issues des phytotechnologies(2013)
International audience | Gentle remediation options (GRO) are based on the combined use of plants, associated microorganisms and soil amendments, which can potentially restore soil functions and quality. We studied the effects of three GRO (aided-phytostabilisation, in situ stabilisation and phytoexclusion, and aided-phytoextraction) on the soil microbial biomass and respiration, the activities of hydrolase enzymes involved in the biogeochemical cycles of C, N, P, and S, and bacterial community structure of trace element contaminated soils (TECS) from six field trials across Europe. Community structure was studied using denaturing gradient gel electrophoresis (DGGE) fingerprinting of Bacteria, α- and β-Proteobacteria, Actinobacteria and Streptomycetaceae, and sequencing of DGGE bands characteristic of specific treatments. The number of copies of genes involved in ammonia oxidation and denitrification were determined by qPCR. Phytomanagement increased soil microbial biomass at three sites and respiration at the Biogeco site (France). Enzyme activities were consistently higher in treated soils compared to untreated soils at the Biogeco site. At this site, microbial biomass increased from 696 to 2352 mg ATP kg-1 soil, respiration increased from 7.4 to 40.1 mg C-CO2 kg-1 soil d-1, and enzyme activities were 2-11-fold higher in treated soils compared to untreated soil. Phytomanagement induced shifts in the bacterial community structure at both, the total community and functional group levels, and generally increased the number of copies of genes involved in the N cycle (nirK, nirS, nosZ, and amoA). The influence of the main soil physico-chemical properties and trace element availability were assessed and eventual site-specific effects elucidated. Overall, our results demonstrate that phytomanagement of TECS influences soil biological activity in the long term.
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