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An ex ante life cycle assessment of wheat with high biological nitrification inhibition capacity Texto completo
2022
Leon, Ai | Guntur Venkata Subbarao | Kishii, Masahiro | Naruo Matsumoto | Kruseman, Gideon K.
An ex ante life cycle assessment of wheat with high biological nitrification inhibition capacity Texto completo
2022
Leon, Ai | Guntur Venkata Subbarao | Kishii, Masahiro | Naruo Matsumoto | Kruseman, Gideon K.
It is essential to increase food production to meet the projected population increase while reducing environmental loads. Biological nitrification inhibition (BNI)-enabled wheat genetic stocks are under development through chromosome engineering by transferring chromosomal regions carrying the BNI trait from a wild relative (Leymus racemosus (Lam.) Tzvelev) into elite wheat varieties; field evaluation of these newly developed BNI-wheat varieties has started. Ten years from now, BNI-enabled elite wheat varieties are expected to be deployed in wheat production systems. This study aims to evaluate the impacts of introducing these novel genetic solutions on life cycle greenhouse gas (LC-GHG) emissions, nitrogen (N) fertilizer application rates and N-use efficiency (NUE). Scenarios were developed based on evidence of nitrification inhibition and nitrous oxide (N2O) emission reduction by BNI crops and by synthetic nitrification inhibitors (SNIs), as both BNI-wheat and SNIs slow the nitrification process. Scenarios including BNI-wheat will inhibit nitrification by 30% by 2030 and 40% by 2050. It was assumed that N fertilizer application rates can potentially be reduced, as N losses through N2O emissions, leaching and runoff are expected to be lower. The results show that the impacts from BNI-wheat with 40% nitrification inhibition by 2050 are assessed to be positive: a 15.0% reduction in N fertilization, a 15.9% reduction in LC-GHG emissions, and a 16.7% improvement in NUE at the farm level. An increase in ammonia volatilization had little influence on the reduction in LC-GHG emissions. The GHG emissions associated with N fertilizer production and soil N2O emissions can be reduced between 7.3 and 9.5% across the wheat-harvested area worldwide by BNI-wheat with 30% and 40% nitrification inhibition, respectively. However, the present study recommends further technological developments (e.g. further developments in BNI-wheat and the development of more powerful SNIs) to reduce environmental impacts while improving wheat production to meet the increasing worldwide demand.
Mostrar más [+] Menos [-]An ex ante life cycle assessment of wheat with high biological nitrification inhibition capacity Texto completo
2022
Leon, Ai | Guntur V., Subbarao | Kishii, Masahiro | Matsumoto, Naruo | Kruseman, Gideon
It is essential to increase food production to meet the projected population increase while reducing environmental loads. Biological nitrification inhibition (BNI)-enabled wheat genetic stocks are under development through chromosome engineering by transferring chromosomal regions carrying the BNI trait from a wild relative (Leymus racemosus (Lam.) Tzvelev) into elite wheat varieties; field evaluation of these newly developed BNI-wheat varieties has started. Ten years from now, BNI-enabled elite wheat varieties are expected to be deployed in wheat production systems. This study aims to evaluate the impacts of introducing these novel genetic solutions on life cycle greenhouse gas (LC-GHG) emissions, nitrogen (N) fertilizer application rates and N-use efficiency (NUE). Scenarios were developed based on evidence of nitrification inhibition and nitrous oxide (N₂O) emission reduction by BNI crops and by synthetic nitrification inhibitors (SNIs), as both BNI-wheat and SNIs slow the nitrification process. Scenarios including BNI-wheat will inhibit nitrification by 30% by 2030 and 40% by 2050. It was assumed that N fertilizer application rates can potentially be reduced, as N losses through N₂O emissions, leaching and runoff are expected to be lower. The results show that the impacts from BNI-wheat with 40% nitrification inhibition by 2050 are assessed to be positive: a 15.0% reduction in N fertilization, a 15.9% reduction in LC-GHG emissions, and a 16.7% improvement in NUE at the farm level. An increase in ammonia volatilization had little influence on the reduction in LC-GHG emissions. The GHG emissions associated with N fertilizer production and soil N₂O emissions can be reduced between 7.3 and 9.5% across the wheat-harvested area worldwide by BNI-wheat with 30% and 40% nitrification inhibition, respectively. However, the present study recommends further technological developments (e.g. further developments in BNI-wheat and the development of more powerful SNIs) to reduce environmental impacts while improving wheat production to meet the increasing worldwide demand.
Mostrar más [+] Menos [-]An ex ante life cycle assessment of wheat with high biological nitrification inhibition capacity Texto completo
2022
Leon, Ai | Guntur Venkata Subbarao | Kishii, Masahiro | Naruo Matsumoto | Kruseman, Gideon K.
It is essential to increase food production to meet the projected population increase while reducing environmental loads. Biological nitrification inhibition (BNI)-enabled wheat genetic stocks are under development through chromosome engineering by transferring chromosomal regions carrying the BNI trait from a wild relative (Leymus racemosus (Lam.) Tzvelev) into elite wheat varieties; field evaluation of these newly developed BNI-wheat varieties has started. Ten years from now, BNI-enabled elite wheat varieties are expected to be deployed in wheat production systems. This study aims to evaluate the impacts of introducing these novel genetic solutions on life cycle greenhouse gas (LC-GHG) emissions, nitrogen (N) fertilizer application rates and N-use efficiency (NUE). Scenarios were developed based on evidence of nitrification inhibition and nitrous oxide (N2O) emission reduction by BNI crops and by synthetic nitrification inhibitors (SNIs), as both BNI-wheat and SNIs slow the nitrification process. Scenarios including BNI-wheat will inhibit nitrification by 30% by 2030 and 40% by 2050. It was assumed that N fertilizer application rates can potentially be reduced, as N losses through N2O emissions, leaching and runoff are expected to be lower. The results show that the impacts from BNI-wheat with 40% nitrification inhibition by 2050 are assessed to be positive: a 15.0% reduction in N fertilization, a 15.9% reduction in LC-GHG emissions, and a 16.7% improvement in NUE at the farm level. An increase in ammonia volatilization had little influence on the reduction in LC-GHG emissions. The GHG emissions associated with N fertilizer production and soil N2O emissions can be reduced between 7.3 and 9.5% across the wheat-harvested area worldwide by BNI-wheat with 30% and 40% nitrification inhibition, respectively. However, the present study recommends further technological developments (e.g. further developments in BNI-wheat and the development of more powerful SNIs) to reduce environmental impacts while improving wheat production to meet the increasing worldwide demand.
Mostrar más [+] Menos [-]Microplastics in the insular marine environment of the Southwest Indian Ocean carry a microbiome including antimicrobial resistant (AMR) bacteria: A case study from Reunion Island Texto completo
2024
Sababadichetty, Loik | Miltgen, Guillaume | Vincent, Bryan | Guilhaumon, François | Lenoble, Véronique | Thibault, Margot | Bureau, Sophie | Tortosa, Pablo | Bouvier, Thierry | Jourand, Philippe
Microplastics in the insular marine environment of the Southwest Indian Ocean carry a microbiome including antimicrobial resistant (AMR) bacteria: A case study from Reunion Island Texto completo
2024
Sababadichetty, Loik | Miltgen, Guillaume | Vincent, Bryan | Guilhaumon, François | Lenoble, Véronique | Thibault, Margot | Bureau, Sophie | Tortosa, Pablo | Bouvier, Thierry | Jourand, Philippe
The increasing threats to ecosystems and humans from marine plastic pollution require a comprehensive assessment. We present a plastisphere case study from Reunion Island, a remote oceanic island located in the Southwest Indian Ocean, polluted by plastics. We characterized the plastic pollution on the island's coastal waters, described the associated microbiome, explored viable bacterial flora and the presence of antimicrobial resistant (AMR) bacteria. Reunion Island faces plastic pollution with up to 10,000 items/km2 in coastal water. These plastics host microbiomes dominated by Proteobacteria (80 %), including dominant genera such as Psychrobacter, Photobacterium, Pseudoalteromonas and Vibrio. Culturable microbiomes reach 107 CFU/g of microplastics, with dominance of Exiguobacterium and Pseudomonas. Plastics also carry AMR bacteria including β-lactam resistance. Thus, Southwest Indian Ocean islands are facing serious plastic pollution. This pollution requires vigilant monitoring as it harbors a plastisphere including AMR, that threatens pristine ecosystems and potentially human health through the marine food chain.
Mostrar más [+] Menos [-]Microplastics in the insular marine environment of the Southwest Indian Ocean carry a microbiome including antimicrobial resistant (AMR) bacteria: A case study from Reunion Island Texto completo
2024
Sababadichetty, Loik | Miltgen, Guillaume | Vincent, Bryan | Guilhaumon, François | Lenoble, Véronique | Thibault, Margot | Bureau, Sophie | Tortosa, Pablo | Bouvier, Thierry | Jourand, Philippe | Ecologie marine tropicale dans les Océans Pacifique et Indien (ENTROPIE [Réunion]) ; Institut de Recherche pour le Développement (IRD)-Université de La Réunion (UR)-Centre National de la Recherche Scientifique (CNRS) | Centre Hospitalier Universitaire de La Réunion (CHU La Réunion) | Processus Infectieux en Milieu Insulaire Tropical (PIMIT) ; Université de La Réunion (UR)-Institut National de la Santé et de la Recherche Médicale (INSERM)-IRD-Centre National de la Recherche Scientifique (CNRS) | Laboratoire des symbioses tropicales et méditerranéennes (UMR LSTM) ; Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut de Recherche pour le Développement (IRD)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro Montpellier ; 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)-Université de Montpellier (UM) | Institut méditerranéen d'océanologie (MIO) ; Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS) | The Ocean Cleanup | Interactions moléculaires et réactivité chimique et photochimique (IMRCP) ; Institut de Chimie de Toulouse (ICT) ; Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) ; Université de Toulouse (UT)-Université de Toulouse (UT)-Institut de Chimie - CNRS Chimie (INC-CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP) ; Université de Toulouse (UT)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) ; Université de Toulouse (UT)-Université de Toulouse (UT)-Institut de Chimie - CNRS Chimie (INC-CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP) ; Université de Toulouse (UT)-Institut Ecologie et Environnement - CNRS Ecologie et Environnement (INEE-CNRS) ; Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Fédération de Recherche Fluides, Energie, Réacteurs, Matériaux et Transferts (FERMAT) ; Institut National des Sciences Appliquées - Toulouse (INSA Toulouse) ; Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3) ; Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP) ; Université de Toulouse (UT)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse) ; Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) | Cyclotron Réunion Océan Indien (CYROI) ; Université de La Réunion (UR)-Centre Hospitalier Universitaire de La Réunion (CHU La Réunion) | MARine Biodiversity Exploitation and Conservation - MARBEC (UMR MARBEC) ; Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM) | This study was supported by funds from the Structure Federative de Recherche Biosecurite en milieu Tropical (BIOST), Universite de la Reunion (France) and Institut de Recherche pour le Developpement (IRD). Project ID: BMRPLAST.
NGS raw data 16SrDNA sequences are deposited in zenodo data bank: https://doi.org/10.5281/zenodo.8063253. | International audience | Highlights: • Severe marine plastic pollution impacts Southwest Indian Ocean insular ecosystems. • Plastic debris from Southwest Indian Ocean host rich microbiomes. • Proteobacteria dominate such marine plastic microbiomes. • These debris carry a consequent culturable bacterial flora including potential pathogens. • AMR bacteria hitchhike on these plastics.Abstract: The increasing threats to ecosystems and humans from marine plastic pollution require a comprehensive assessment. We present a plastisphere case study from Reunion Island, a remote oceanic island located in the Southwest Indian Ocean, polluted by plastics. We characterized the plastic pollution on the island's coastal waters, described the associated microbiome, explored viable bacterial flora and the presence of antimicrobial resistant (AMR) bacteria. Reunion Island faces plastic pollution with up to 10,000 items/km 2 in coastal water. These plastics host microbiomes dominated by Proteobacteria (80 %), including dominant genera such as Psychrobacter, Photobacterium, Pseudoalteromonas and Vibrio. Culturable microbiomes reach 10 7 CFU/g of microplastics, with dominance of Exiguobacterium and Pseudomonas. Plastics also carry AMR bacteria including β-lactam resistance. Thus, Southwest Indian Ocean islands are facing serious plastic pollution. This pollution requires vigilant monitoring as it harbors a plastisphere including AMR, that threatens pristine ecosystems and potentially human health through the marine food chain.
Mostrar más [+] Menos [-]Microplastics in the insular marine environment of the Southwest Indian Ocean carry a microbiome including antimicrobial resistant (AMR) bacteria: A case study from Reunion Island Texto completo
2024
Sababadichetty, Loik | Miltgen, Guillaume | Vincent, Bryan | Guilhaumon, François | Lenoble, Veronique | Thibault, Margot | Bureau, Sophie | Tortosa, Pablo | Bouvier, Thierry | Jourand, Philippe
The increasing threats to ecosystems and humans from marine plastic pollution require a comprehensive assessment. We present a plastisphere case study from Reunion Island, a remote oceanic island located in the Southwest Indian Ocean, polluted by plastics. We characterized the plastic pollution on the island's coastal waters, described the associated microbiome, explored viable bacterial flora and the presence of antimicrobial resistant (AMR) bacteria. Reunion Island faces plastic pollution with up to 10,000 items/km2 in coastal water. These plastics host microbiomes dominated by Proteobacteria (80 %), including dominant genera such as Psychrobacter, Photobacterium, Pseudoalteromonas and Vibrio. Culturable microbiomes reach 107 CFU/g of microplastics, with dominance of Exiguobacterium and Pseudomonas. Plastics also carry AMR bacteria including β-lactam resistance. Thus, Southwest Indian Ocean islands are facing serious plastic pollution. This pollution requires vigilant monitoring as it harbors a plastisphere including AMR, that threatens pristine ecosystems and potentially human health through the marine food chain.
Mostrar más [+] Menos [-]Monitoring the occurrence of microplastic ingestion in otariids along the peruvian and chilean coasts Texto completo
2020
Pérez Venegas, Diego J. | Toro Valdivieso, Constanza | Ayala, Félix | Brito, Beatriz | Iturra, Lunna | Arriagada, Maite | Seguel, Mauricio | Barrios, Carmen | Sepúlveda, Maritza | Oliva, Doris | Cárdenas Alayza, Susana | Urbina, Mauricio A. | Jorquera, Alberto | Castro Nallar, Eduardo | Galbán Malagón, Cristóbal
Monitoring the occurrence of microplastic ingestion in otariids along the peruvian and chilean coasts Texto completo
2020
Pérez Venegas, Diego J. | Toro Valdivieso, Constanza | Ayala, Félix | Brito, Beatriz | Iturra, Lunna | Arriagada, Maite | Seguel, Mauricio | Barrios, Carmen | Sepúlveda, Maritza | Oliva, Doris | Cárdenas Alayza, Susana | Urbina, Mauricio A. | Jorquera, Alberto | Castro Nallar, Eduardo | Galbán Malagón, Cristóbal
Repeated reports of microplastic pollution in the marine pinniped diet have emerged in the last years. However, only few studies address the drivers of microplastics presence and the potential implications for monitoring microplastic pollution in the ocean. This study monitored their in the scats (N = 205) of four pinniped species/subspecies at five different locations in the southern Pacific Ocean (Peru and Chile). Samples from all rookeries contained microplastics, and overall, 68% of the examined scats contained fragments/fibers, mostly blue colored. We confirmed that 81.5% of the fragments/fibers were anthropogenic in origin , but only 30% were polymers. Scats from Juan Fernandez Archipelago presented higher microplastic concentrations than continental rookeries. Also, the common diet in each location may influence the levels found in the samples. This study presents a useful non-invasive technique to track plastic pollution in top predator diets as bioindicators for future surveillance/management plans applied to different location. | Rufford Foundation: N 18815-1. Dirección de Investigación y Doctorados, Universidad Andres Bello. Comisión Nacional de Investigación Científica y Tecnológica (CONICYT), CONICYT FONDECYT: 11150548, 116504, 111609059. Instituto Antártico Chileno Grant: INACh RT_12_17. Conicyt PCI: REDI 170292, REDI 170403. Ministerio de Economia, Fomento y Turismo through Iniciativa Científica Milenio (Núcleo Milenio INVASAL). Direccion de Investigación Universidad de Variarais: DIUV 38/2013. Morris Animal Foundation fellowship: N D16ZO-413. Saint Louis Zoo. Chicago Zoological Society. Kansas City Zoo. Woodland Park Zoo.
Mostrar más [+] Menos [-]Monitoring the occurrence of microplastic ingestion in Otariids along the Peruvian and Chilean coasts Texto completo
2020
Perez-Venegas, Diego J. | Toro-Valdivieso, Constanza | Ayala, Félix | Brito, Beatriz | Iturra, Lunna | Arriagada, Maite | Seguel, Mauricio | Barrios Corredera, Carmen | Sepúlveda, Maritza | Oliva, Doris | Cárdenas-Alayza, Susana | Urbina, Mauricio A. | Jorquera, Alberto | Castro-Nallar, Eduardo | Galbán-Malagón, Cristóbal
Repeated reports of microplastic pollution in the marine pinniped diet have emerged in the last years. However, only few studies address the drivers of microplastics presence and the potential implications for monitoring microplastic pollution in the ocean. This study monitored their in the scats (N = 205) of four pinniped species/subspecies at five different locations in the southern Pacific Ocean (Peru and Chile). Samples from all rookeries contained microplastics, and overall, 68% of the examined scats contained fragments/fibers, mostly blue colored. We confirmed that 81.5% of the fragments/fibers were anthropogenic in origin , but only 30% were polymers. Scats from Juan Fernández Archipelago presented higher microplastic concentrations than continental rookeries. Also, the common diet in each location may influence the levels found in the samples. This study presents a useful non-invasive technique to track plastic pollution in top predator diets as bioindicators for future surveillance/management plans applied to different location.
Mostrar más [+] Menos [-]The effect of long-term use on the Catch efficiency of Biodegradable gillnets Texto completo
2020
Grimaldo, Eduardo | Herrmann, Bent | Jacques, Nadine | Kubowicz, Stephan | Cerbule, Kristine | Su, Biao | Larsen, Roger B. | Vollstad, Jørgen
The effect of long-term use on the Catch efficiency of Biodegradable gillnets Texto completo
2020
Grimaldo, Eduardo | Herrmann, Bent | Jacques, Nadine | Kubowicz, Stephan | Cerbule, Kristine | Su, Biao | Larsen, Roger B. | Vollstad, Jørgen
The effect of long-term use on the catch efficiency of biodegradable gillnets was investigated during commercial fishing trials and in controlled lab aging tests. The relative catch efficiency between biodegradable and nylon gillnets was evaluated over three consecutive fishing seasons for Atlantic cod (Gadus morhua) in Norway. The biodegradable gillnets progressively lost catch efficiency over time, as they caught 18.4%, 40.2%, and 47.4% fewer fish than the nylon gillnets during the first, second, and third season, respectively. A 1000-hour aging test revealed that both materials began to degrade after just 200 h and that biodegradable gillnets degraded faster than the nylon gillnets. Infrared spectroscopy revealed that the chemical structure of the biodegradable polymer changed more than the nylon. Although less catch efficient than nylon gillnets, biodegradable gillnets have great potential for reducing both capture in lost fishing gear and plastic pollution at sea, which are major problems in fisheries worldwide. | publishedVersion
Mostrar más [+] Menos [-]The effect of long-term use on the catch efficiency of biodegradable gillnets Texto completo
2020
Grimaldo, Eduardo | Herrmann, Bent | Jacques, Nadine | Kubowicz, Stephan | Cerbule, Kristine | Su, Biao | Larsen, Roger | Vollstad, Jørgen
The effect of long-term use on the catch efficiency of biodegradable gillnets was investigated during commercial fishing trials and in controlled lab aging tests. The relative catch efficiency between biodegradable and nylon gillnets was evaluated over three consecutive fishing seasons for Atlantic cod (Gadus morhua) in Norway. The biodegradable gillnets progressively lost catch efficiency over time, as they caught 18.4%, 40.2%, and 47.4% fewer fish than the nylon gillnets during the first, second, and third season, respectively. A 1000-hour aging test revealed that both materials began to degrade after just 200 h and that biodegradable gillnets degraded faster than the nylon gillnets. Infrared spectroscopy revealed that the chemical structure of the biodegradable polymer changed more than the nylon. Although less catch efficient than nylon gillnets, biodegradable gillnets have great potential for reducing both capture in lost fishing gear and plastic pollution at sea, which are major problems in fisheries worldwide.
Mostrar más [+] Menos [-]The effect of long-term use on the Catch efficiency of Biodegradable gillnets Texto completo
2020
Grimaldo, Eduardo | Herrmann, Bent | Jacques, Nadine | Kubowicz, Stephan | Cerbule, Kristine | Su, Biao | Larsen, Roger B. | Vollstad, Jørgen
The effect of long-term use on the catch efficiency of biodegradable gillnets was investigated during commercial fishing trials and in controlled lab aging tests. The relative catch efficiency between biodegradable and nylon gillnets was evaluated over three consecutive fishing seasons for Atlantic cod (Gadus morhua) in Norway. The biodegradable gillnets progressively lost catch efficiency over time, as they caught 18.4%, 40.2%, and 47.4% fewer fish than the nylon gillnets during the first, second, and third season, respectively. A 1000-hour aging test revealed that both materials began to degrade after just 200 h and that biodegradable gillnets degraded faster than the nylon gillnets. Infrared spectroscopy revealed that the chemical structure of the biodegradable polymer changed more than the nylon. Although less catch efficient than nylon gillnets, biodegradable gillnets have great potential for reducing both capture in lost fishing gear and plastic pollution at sea, which are major problems in fisheries worldwide.
Mostrar más [+] Menos [-]Measurements of underwater noise radiated by commercial ships at a cabled ocean observatory Texto completo
2020
Zhang, Guosong | Forland, Tonje Nesse | Johnsen, Espen | Pedersen, Geir | Dong, Hefeng
Measurements of underwater noise radiated by commercial ships at a cabled ocean observatory Texto completo
2020
Zhang, Guosong | Forland, Tonje Nesse | Johnsen, Espen | Pedersen, Geir | Dong, Hefeng
Measurements of underwater noise radiated under ship normal operations are presented. The acoustic data, from the cabled ocean observatory, are analyzed under each identified ship passage, which was obtained by the Automatic Identification System. Under each passage, sound pressure level is calculated to observe local noise variations due to shipping noise. This paper emphasizes the study of noise variations at the observatory, presents the noise measurements under identified ship passages in the last several years, and provides references for predictive models of underwater noise pollution from commercial ship traffic. From the passages of one ship to the passages of 26 ships, the measurements reveal similar variation patterns when the ships traveled at similar courses, but different patterns when they traveled at different courses. When evaluating the noise variations due to ship traffics, it is important to consider the shipping noise propagation as well as ship movement. | publishedVersion
Mostrar más [+] Menos [-]Measurements of underwater noise radiated by commercial ships at a cabled ocean observatory Texto completo
2020
Zhang, Guosong | Forland, Tonje Nesse | Johnsen, Espen | Pedersen, Geir | Dong, Hefeng
Measurements of underwater noise radiated under ship normal operations are presented. The acoustic data, from the cabled ocean observatory, are analyzed under each identified ship passage, which was obtained by the Automatic Identification System. Under each passage, sound pressure level is calculated to observe local noise variations due to shipping noise. This paper emphasizes the study of noise variations at the observatory, presents the noise measurements under identified ship passages in the last several years, and provides references for predictive models of underwater noise pollution from commercial ship traffic. From the passages of one ship to the passages of 26 ships, the measurements reveal similar variation patterns when the ships traveled at similar courses, but different patterns when they traveled at different courses. When evaluating the noise variations due to ship traffics, it is important to consider the shipping noise propagation as well as ship movement.
Mostrar más [+] Menos [-]Development of a flux DMT with integrated adsorptive stripping voltammetry for free metal ions detection in solution Texto completo
2018
Janot, Noemie | Rotureau, Elise | Pinheiro, Jose Paulo
Development of a flux DMT with integrated adsorptive stripping voltammetry for free metal ions detection in solution. Interfaces Against Pollution
Mostrar más [+] Menos [-]Solid-solution partitioning of Rare Earth Elements in mine-tailings and soils in China: experimental results and multi-surface modelling Texto completo
2018
Janot, Noemie | Huot, Hermine | Otero-Fariña, Alba | Leguédois, Sophie | Groenenberg, Jan E.
Solid-solution partitioning of Rare Earth Elements in mine-tailings and soils in China: experimental results and multi-surface modelling. Interfaces Against Pollution
Mostrar más [+] Menos [-]A comprehensive assessment of endocrine-disrupting chemicals in an Indian food basket: Levels, dietary intakes, and comparison with European data Texto completo
2021
Sharma, Brij Mohan | Bharat, Girija K. | Chakraborty, Paromita | Martiník, Jakub | Audy, Ondřej | Kukučka, Petr | Přibylová, Petra | Kukreti, Praveen Kumar | Sharma, Anežka | Kalina, Jiří | Steindal, Eirik Hovland | Nizzetto, Luca
A comprehensive assessment of endocrine-disrupting chemicals in an Indian food basket: Levels, dietary intakes, and comparison with European data Texto completo
2021
Sharma, Brij Mohan | Bharat, Girija K. | Chakraborty, Paromita | Martiník, Jakub | Audy, Ondřej | Kukučka, Petr | Přibylová, Petra | Kukreti, Praveen Kumar | Sharma, Anežka | Kalina, Jiří | Steindal, Eirik Hovland | Nizzetto, Luca
Endocrine-disrupting chemicals (EDCs) in diet are a health concern and their monitoring in food has been introduced in the European Union. In developing countries, EDC dietary exposure data are scarce, especially from areas perceived as pollution hotspots, including industrialized countries like India. Several persistent organic pollutants (POPs) act as EDCs and pose a pressure to human health mainly through dietary exposure. In the present study a range of organochlorine pesticides (OCPs), polychlorinated biphenyls (PCBs), polybrominated diphenyl ethers (PBDEs), dioxins and furans were measured in several food items collected in an Indian urban (Delhi) and a rural area (Dehradun). Food basket contamination data were used to estimate dietary exposure and compare it with that of the average European population estimated from available monitoring data. All targeted contaminants were found in most food items, especially in dairies and meat products. OCPs were the main contributors. Food supplied to Delhi's markets had higher contamination than that supplied to the peri-urban market in Dehradun. Despite looser control and restrictions, Indian dietary exposure of OCPs and PBDEs were comparable with that of Europe and were lower for PCBs and dioxins. Higher meat consumption in Europe only partly explained this pattern which was driven also by the higher residues in some European food items. A substantial part of endocrine disrupting potential in the diet derives from food and animal feeds internationally traded between developed and developing countries. With increasingly globalized food systems, internationally harmonized policies on EDC in food can lead to better protection of health in both these contexts. | publishedVersion
Mostrar más [+] Menos [-]A comprehensive assessment of endocrine-disrupting chemicals in an Indian food basket: Levels, dietary intakes, and comparison with European data Texto completo
2021
Sharma, Brij Mohan | Bharat, Girija K. | Chakraborty, Paromita | Martiník, Jakub | Audy, Ondřej | Kukučka, Petr | Přibylová, Petra | Kukreti, Praveen Kumar | Sharma, Anežka | Kalina, Jiří | Steindal, Eirik Hovland | Nizzetto, Luca
Endocrine-disrupting chemicals (EDCs) in diet are a health concern and their monitoring in food has been introduced in the European Union. In developing countries, EDC dietary exposure data are scarce, especially from areas perceived as pollution hotspots, including industrialized countries like India. Several persistent organic pollutants (POPs) act as EDCs and pose a pressure to human health mainly through dietary exposure. In the present study, a range of organochlorine pesticides (OCPs), polychlorinated biphenyls (PCBs), polybrominated diphenyl ethers (PBDEs), dioxins and furans were measured in several food items collected from Indian urban (Delhi) and peri-urban (Dehradun) areas. Food basket contamination data were used to estimate EDC dietary exposure and compare it with that of the average European population estimated from available monitoring data. All the target contaminants were found in most food items, especially in dairies and meat products. OCPs were the main contributers to the measured EDC contamination. Food supplied to Delhi's markets had higher EDC contamination than that supplied to the peri-urban market in Dehradun. Despite lax compliance and control measures, Indian dietary exposure of OCPs and PBDEs were comparable with that of Europe and were lower for PCBs and dioxins. Higher meat consumption in Europe only partly explained this pattern which was driven also by the higher EDC residues in some European food items. A substantial part of endocrine disrupting potential in the diet derives from food and animal feeds internationally traded between developed and developing countries. With increasingly globalized food systems, internationally harmonized policies on EDC content in food can lead to better protection of health in both these contexts.
Mostrar más [+] Menos [-]A comprehensive assessment of endocrine-disrupting chemicals in an Indian food basket: Levels, dietary intakes, and comparison with European data Texto completo
2021
Sharma, Brij Mohan | Bharat, Girija K. | Chakraborty, Paromita | Martiník, Jakub | Audy, Ondřej | Kukučka, Petr | Přibylová, Petra | Kukreti, Praveen Kumar | Sharma, Anežka | Kalina, Jiří | Steindal, Eirik Hovland | Nizzetto, Luca
Endocrine-disrupting chemicals (EDCs) in diet are a health concern and their monitoring in food has been introduced in the European Union. In developing countries, EDC dietary exposure data are scarce, especially from areas perceived as pollution hotspots, including industrialized countries like India. Several persistent organic pollutants (POPs) act as EDCs and pose a pressure to human health mainly through dietary exposure. In the present study a range of organochlorine pesticides (OCPs), polychlorinated biphenyls (PCBs), polybrominated diphenyl ethers (PBDEs), dioxins and furans were measured in several food items collected in an Indian urban (Delhi) and a rural area (Dehradun). Food basket contamination data were used to estimate dietary exposure and compare it with that of the average European population estimated from available monitoring data. All targeted contaminants were found in most food items, especially in dairies and meat products. OCPs were the main contributors. Food supplied to Delhi's markets had higher contamination than that supplied to the peri-urban market in Dehradun. Despite looser control and restrictions, Indian dietary exposure of OCPs and PBDEs were comparable with that of Europe and were lower for PCBs and dioxins. Higher meat consumption in Europe only partly explained this pattern which was driven also by the higher residues in some European food items. A substantial part of endocrine disrupting potential in the diet derives from food and animal feeds internationally traded between developed and developing countries. With increasingly globalized food systems, internationally harmonized policies on EDC in food can lead to better protection of health in both these contexts. | publishedVersion
Mostrar más [+] Menos [-]Ecotoxicoproteomic assessment of the functional alterations caused by chronic metallic exposures in gammarids Texto completo
2017
Gismondi, Eric | Thomé, Jean-Pierre | Urien, Nastassia | Uher, Emmanuelle | Baiwir, Dominique | Mazzucchelli, Gabriel | De Pauw, Edwin | Fechner, Lise | Lebrun, Jérémie | FOCUS - Freshwater and OCeanic science Unit of reSearch - ULiège
Ecotoxicoproteomic assessment of the functional alterations caused by chronic metallic exposures in gammarids Texto completo
2017
Gismondi, Eric | Thomé, Jean-Pierre | Urien, Nastassia | Uher, Emmanuelle | Baiwir, Dominique | Mazzucchelli, Gabriel | De Pauw, Edwin | Fechner, Lise | Lebrun, Jérémie | FOCUS - Freshwater and OCeanic science Unit of reSearch - ULiège
peer reviewed | Very few ecotoxicological studies have been performed on long-term exposure under controlled conditions, hence limiting the assessment of the impact of chronic and diffuse chemical pressures on the health of aquatic organisms. In this study, an ecotoxicoproteomic approach was used to assess the integrated response and possible acclimation mechanisms in Gammarus fossarum following chronic exposures to Cd, Cu or Pb, at environmentally realistic concentrations (i.e. 0.25, 1.5 and 5 µg/L respectively). After 10-week exposure, changes in protein expression were investigated in caeca of control and exposed males. Gel-free proteomic analyses allowed for the identification of 35 proteins involved in various biological functions, for which 23 were significantly deregulated by metal exposures. The protein deregulation profiles were specific to each metal, providing evidence for metal-specific action sites and responses of gammarids. Among the tested metals, Cu was the most toxic in terms of mortality, probably linked with persistent oxidative stress. Moulting and osmoregulation were the major biological functions affected by Cu in the long-term. In Pb-exposed gammarids, significant deregulations of proteins involved in immune response and cytoskeleton were observed. Reproduction appears to be strongly affected in gammarids chronically exposed to Cd or Pb. Besides, modified expressions of several proteins involved in energy transfer and metabolism highlighted important energetic reshuffling to cope with chronic metal exposures. These results support the fact that metallic pressures induce a functional and energetic cost for individuals of G. fossarum with potential repercussions on population dynamics. Furthermore, this ecotoxicoproteomic study offers promising lines of enquiry in the development of new biomarkers that could make evidence of long-term impacts of metals on the health of organisms.
Mostrar más [+] Menos [-]Ecotoxicoproteomic assessment of the functional alterations caused by chronic metallic exposures in gammarids Texto completo
2017
Gismondi, E. | Thomé, J.-P. | Urien, N. | Uher, E. | Baiwir, D. | Mazzucchelli, G. | De Pauw, E. | Fechner, L.C. | Lebrun, J.D.
Very few ecotoxicological studies have been performed on long-term exposure under controlled conditions, hence limiting the assessment of the impact of chronic and diffuse chemical pressures on the health of aquatic organisms. In this study, an ecotoxicoproteomic approach was used to assess the integrated response and possible acclimation mechanisms in Gammarus fossarum following chronic exposures to Cd, Cu or Pb, at environmentally realistic concentrations (i.e. 0.25, 1.5 and 5 μg/L respectively). After 10-week exposure, changes in protein expression were investigated in caeca of control and exposed males. Gel-free proteomic analyses allowed for the identification of 35 proteins involved in various biological functions, for which 23 were significantly deregulated by metal exposures. The protein deregulation profiles were specific to each metal, providing evidence for metal-specific action sites and responses of gammarids. Among the tested metals, Cu was the most toxic in terms of mortality, probably linked with persistent oxidative stress. Moulting and osmoregulation were the major biological functions affected by Cu in the long-term. In Pb-exposed gammarids, significant deregulations of proteins involved in immune response and cytoskeleton were observed. Reproduction appears to be strongly affected in gammarids chronically exposed to Cd or Pb. Besides, modified expressions of several proteins involved in energy transfer and metabolism highlighted important energetic reshuffling to cope with chronic metal exposures. These results support the fact that metallic pressures induce a functional and energetic cost for individuals of G. fossarum with potential repercussions on population dynamics. Furthermore, this ecotoxicoproteomic study offers promising lines of enquiry in the development of new biomarkers that could make evidence of long-term impacts of metals on the health of organisms.
Mostrar más [+] Menos [-]Ecotoxicoproteomic assessment of the functional alterations caused by chronic metallic exposures in gammarids Texto completo
2017
Gismondi, E. | Thomé, J.-P. | Urien, N. | Uher, E. | Baiwir, D. | Mazzucchelli, G. | de Pauw, E. | Fechner, L.C. | Lebrun, Jérémie, D. | Freshwater and Oceanic Sciences Unit of reSearch (FOCUS) ; Laboratory of Oceanology ; Université de Liège-Université de Liège | Laboratory of Animal Ecology and Ecotoxicity (LEAE-CART) ; Université de Liège | Université de Liège | Hydrosystèmes et Bioprocédés (UR HBAN) ; Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA) | Mass Spectrometry Laboratory (MS LAB) ; Université de Liège-Centre d'Analyse des Résidus en Traces-Groupe Interdisciplinaire de Génoprotéomique Appliquée
Ecotoxicoproteomic assessment of the functional alterations caused by chronic metallic exposures in gammarids Texto completo
2017
Gismondi, Éric | Thomé, Jean-Pierre | Urien, Nastassia | Uher, Emmanuelle | Baiwir, Dominique | Mazzucchelli, Gabriel | de Pauw, Edwin | Fechner, Lise, C. | Lebrun, Jérémie, D. | Laboratoire des Interactions Ecotoxicologie, Biodiversité, Ecosystèmes (LIEBE) ; Université Paul Verlaine - Metz (UPVM)-Centre National de la Recherche Scientifique (CNRS) | Hydrosystèmes et Bioprocédés (UR HBAN) ; Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA) | Institut National de la Recherche Scientifique [Québec] (INRS) | Fédération Île-de-France de Recherche sur l'Environnement (FIRE) ; Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-AgroParisTech-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) | Mass Spectrometry Laboratory (MS LAB) ; Université de Liège = University of Liège = Universiteit van Luik = Universität Lüttich (ULiège)-Centre d'Analyse des Résidus en Traces-Groupe Interdisciplinaire de Génoprotéomique Appliquée | Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) | ANR-12-ADAP-0003,SequAdapt,Conséquences et mécanismes de l'adaptation à la contamination chimique en Seine(2012)
International audience
Mostrar más [+] Menos [-]Computational toxicology: Physiologically based pharmacokinetic models (PBPK) for lifetime exposure and bioaccumulation of polybrominated dephenyl ethers (PBDEs) in marine mammals Texto completo
2012
Weijs, Liesbeth | Covaci, Adrian | Yang, Raymond S H | Das, Krishna | Blust, Ronny
peer reviewed | Due to migration of harbour porpoises towards more polluted areas like the North Sea and their sensitivity towards pollution, there is a need for proper conservation measures for this species. As a consequence, knowledge about the pollutant’s kinetics is required. The present study is the first to investigate the kinetics of PBDEs in marine mammals using PBPK modeling as a non-destructive tool for describing the chemical’s kinetics in a protected animal species. The models were developed and parameterized using data from the literature and Black Sea harbour porpoises through computer opti- mization. The predictability of these models in time was assessed by reverse dosimetry modeling using data from North Sea porpoises (1990e2008). From these predictions, PBDE 99 levels were found to decrease the fastest, followed by PBDE 153, 47 and 100. Results show that the PBPK models can be applied for harbour porpoises from different regions and also simulate time trends.
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