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An annual profile of the impacts of simulated oil spills on the Northeast Arctic cod and haddock fisherie | An annual profile of the impacts of simulated oil spills on the Northeast Arctic cod and haddock fisherie Texto completo
2022
Carroll, JoLynn | Frøysa, Håvard Guldbrandsen | Vikebø, Frode Bendiksen | Broch, Ole Jacob | Nepstad, Raymond | Augustine, Starrlight | Skeie, Geir Morten | Bockwoldt, Mathias
An annual profile of the impacts of simulated oil spills on the Northeast Arctic cod and haddock fisherie | An annual profile of the impacts of simulated oil spills on the Northeast Arctic cod and haddock fisherie Texto completo
2022
Carroll, JoLynn | Frøysa, Håvard Guldbrandsen | Vikebø, Frode Bendiksen | Broch, Ole Jacob | Nepstad, Raymond | Augustine, Starrlight | Skeie, Geir Morten | Bockwoldt, Mathias
We simulate the combined natural and pollutant-induced survival of early life stages of NEA cod and haddock, and the impact on the adult populations in response to the time of a major oil spill in a single year. Our simulations reveal how dynamic ocean processes, controlling both oil transport and fate and the frequency of interactions of oil with drifting fish eggs and larvae, mediate the magnitude of population losses due to an oil spill. The largest impacts on fish early life stages occurred for spills initiated in Feb–Mar, concomitant with the initial rise in marine productivity and the earliest phase of the spawning season. The reproductive health of the adult fish populations was maintained in all scenarios. The study demonstrates the application of a simulation system that provides managers with information for the planning of development activities and for the protection of fisheries resources from potential impacts. | An annual profile of the impacts of simulated oil spills on the Northeast Arctic cod and haddock fisherie | publishedVersion
Mostrar más [+] Menos [-]An annual profile of the impacts of simulated oil spills on the Northeast Arctic cod and haddock fisherie Texto completo
2022
Carroll, JoLynn | Frøysa, Håvard Guldbrandsen | Vikebø, Frode Bendiksen | Broch, Ole Jacob | Nepstad, Raymond | Augustine, Starrlight | Skeie, Geir Morten | Bockwoldt, Mathias | Howell, Daniel
We simulate the combined natural and pollutant-induced survival of early life stages of NEA cod and haddock, and the impact on the adult populations in response to the time of a major oil spill in a single year. Our simulations reveal how dynamic ocean processes, controlling both oil transport and fate and the frequency of interactions of oil with drifting fish eggs and larvae, mediate the magnitude of population losses due to an oil spill. The largest impacts on fish early life stages occurred for spills initiated in Feb–Mar, concomitant with the initial rise in marine productivity and the earliest phase of the spawning season. The reproductive health of the adult fish populations was maintained in all scenarios. The study demonstrates the application of a simulation system that provides managers with information for the planning of development activities and for the protection of fisheries resources from potential impacts.
Mostrar más [+] Menos [-]An annual profile of the impacts of simulated oil spills on the Northeast Arctic cod and haddock fisheries Texto completo
2022
Carroll, JoLynn | Frøysa, Håvard Guldbrandsen | Vikebø, Frode Bendiksen | Broch, Ole Jacob | Howell, Daniel | Nepstad, Raymond | Augustine, Starrlight | Skeie, Geir Morten | Bockwoldt, Mathias
We simulate the combined natural and pollutant-induced survival of early life stages of NEA cod and haddock, and the impact on the adult populations in response to the time of a major oil spill in a single year. Our simulations reveal how dynamic ocean processes, controlling both oil transport and fate and the frequency of interactions of oil with drifting fish eggs and larvae, mediate the magnitude of population losses due to an oil spill. The largest impacts on fish early life stages occurred for spills initiated in Feb–Mar, concomitant with the initial rise in marine productivity and the earliest phase of the spawning season. The reproductive health of the adult fish populations was maintained in all scenarios. The study demonstrates the application of a simulation system that provides managers with information for the planning of development activities and for the protection of fisheries resources from potential impacts.
Mostrar más [+] Menos [-]An annual profile of the impacts of simulated oil spills on the Northeast Arctic cod and haddock fisherie | An annual profile of the impacts of simulated oil spills on the Northeast Arctic cod and haddock fisherie Texto completo
2022
Carroll, JoLynn | Frøysa, Håvard Guldbrandsen | Vikebø, Frode Bendiksen | Broch, Ole Jacob | Howell, Daniel | Nepstad, Raymond | Augustine, Starrlight | Skeie, Geir Morten | Bockwoldt, Mathias
We simulate the combined natural and pollutant-induced survival of early life stages of NEA cod and haddock, and the impact on the adult populations in response to the time of a major oil spill in a single year. Our simulations reveal how dynamic ocean processes, controlling both oil transport and fate and the frequency of interactions of oil with drifting fish eggs and larvae, mediate the magnitude of population losses due to an oil spill. The largest impacts on fish early life stages occurred for spills initiated in Feb–Mar, concomitant with the initial rise in marine productivity and the earliest phase of the spawning season. The reproductive health of the adult fish populations was maintained in all scenarios. The study demonstrates the application of a simulation system that provides managers with information for the planning of development activities and for the protection of fisheries resources from potential impacts. | publishedVersion
Mostrar más [+] Menos [-]An annual profile of the impacts of simulated oil spills on the Northeast Arctic cod and haddock fisheries | An annual profile of the impacts of simulated oil spills on the Northeast Arctic cod and haddock fisheries Texto completo
2022
Carroll, JoLynn | Frøysa, Håvard Guldbrandsen | Vikebø, Frode Bendiksen | Broch, Ole Jacob | Howell, Daniel | Nepstad, Raymond | Augustine, Starrlight | Skeie, Geir Morten | Bockwoldt, Mathias
We simulate the combined natural and pollutant-induced survival of early life stages of NEA cod and haddock, and the impact on the adult populations in response to the time of a major oil spill in a single year. Our simulations reveal how dynamic ocean processes, controlling both oil transport and fate and the frequency of interactions of oil with drifting fish eggs and larvae, mediate the magnitude of population losses due to an oil spill. The largest impacts on fish early life stages occurred for spills initiated in Feb–Mar, concomitant with the initial rise in marine productivity and the earliest phase of the spawning season. The reproductive health of the adult fish populations was maintained in all scenarios. The study demonstrates the application of a simulation system that provides managers with information for the planning of development activities and for the protection of fisheries resources from potential impacts | An annual profile of the impacts of simulated oil spills on the Northeast Arctic cod and haddock fisheries | publishedVersion
Mostrar más [+] Menos [-]An annual profile of the impacts of simulated oil spills on the Northeast Arctic cod and haddock fisheries | An annual profile of the impacts of simulated oil spills on the Northeast Arctic cod and haddock fisheries Texto completo
2022
Carroll, JoLynn | Frøysa, Håvard Guldbrandsen | Vikebø, Frode Bendiksen | Broch, Ole Jacob | Howell, Daniel | Nepstad, Raymond | Augustine, Starrlight | Skeie, Geir Morten | Bockwoldt, Mathias
We simulate the combined natural and pollutant-induced survival of early life stages of NEA cod and haddock, and the impact on the adult populations in response to the time of a major oil spill in a single year. Our simulations reveal how dynamic ocean processes, controlling both oil transport and fate and the frequency of interactions of oil with drifting fish eggs and larvae, mediate the magnitude of population losses due to an oil spill. The largest impacts on fish early life stages occurred for spills initiated in Feb–Mar, concomitant with the initial rise in marine productivity and the earliest phase of the spawning season. The reproductive health of the adult fish populations was maintained in all scenarios. The study demonstrates the application of a simulation system that provides managers with information for the planning of development activities and for the protection of fisheries resources from potential impacts | publishedVersion
Mostrar más [+] Menos [-]Distribution of pesticides and some of their transformation products in a small lentic waterbody: Fish, water, and sediment contamination in an agricultural watershed Texto completo
2021
Slaby, Sylvain | Le Cor, François | Dufour, Vincent | Auger, Lucile | Pasquini, Laure | Cardoso, Olivier | Curtet, Laurence | Baudoin, Jean-Marc | Wiest, Laure | Vulliet, Emmanuelle | Feidt, Cyril | Dauchy, Xavier | BANAS, Damien
Cadmium distribution in mature durum wheat grains using dissection, laser ablation-ICP-MS and synchrotron techniques * Texto completo
2020
Yan, Bofang | Isaure, Marie-Pierre | Mounicou, Sandra | Castillo-Michel, Hiram | De Nolf, Wout | Nguyen, Christophe | Cornu, Jean-Yves
Understanding how essential and toxic elements are distributed in cereal grains is a key to improving the nutritional quality of cereal-based products. The main objective of this work was to characterize the distribution of Cd and of nutrients (notably Cu, Fe, Mn, P, S and Zn) in the durum wheat grain. Laser ablation inductively coupled mass spectrometry and synchrotron micro X-ray fluorescence were used for micro-scale mapping of Cd and nutrients. A dissection approach was used to quantitatively assess the distribution of Cd and nutrients among grain tissues. Micro X-ray absorption near-edge spectroscopy was used to identify the Cd chemical environment in the crease. Cadmium distribution was characterized by strong accumulation in the crease and by non-negligible dissemination in the endosperm. Inside the crease, Cd accumulated most in the pigment strand where it was mainly associated with sulfur ligands. High-resolution maps highlighted very specific accumulation areas of some nutrients in the germ, for instance Mo in the root cortex primordia and Cu in the scutellum. Cadmium loading into the grain appears to be highly restricted. In the grain, Cd co-localized with several nutrients, notably Mn and Zn, which challenges the idea of selectively removing Cd-enriched fractions by dedicated milling process.
Mostrar más [+] Menos [-]The 2016 red tide crisis in southern Chile: Possible influence of the mass oceanic dumping of dead salmons Texto completo
2020
Armijo, Julien | Oerder, Vera | Auger, Pierre-Amaël | Bravo Lizana, Angela | Molina, Ernesto
The 2016 red tide crisis in southern Chile: Possible influence of the mass oceanic dumping of dead salmons Texto completo
2020
Armijo, Julien | Oerder, Vera | Auger, Pierre-Amaël | Bravo Lizana, Angela | Molina, Ernesto
In 2016, a massive harmful algal bloom (HAB) of Alexandrium catenella around Chiloe island caused one of the major socio-ecological crisis in Chilean history. This red tide occurred in two distinct pulses, the second, most anomalous, bursting with extreme toxicity on the Pacific coast, weeks after the highly controversial dumping off Chiloe of 4,700 t of rotting salmons, killed by a previous HAB of Pseudochattonella verruculosa. We study the transport of this pollution, analyzing the physical oceanographic conditions during and after the dumping. We find that a cyclonic gyre was present between the dumping site and the coast, visible in satellite altimetry and sea surface temperature data. Using Lagrangian simulations, we confirm that near-surface currents could have brought part of the pollution to the coast, and fueled the bloom. This scenario explains also the anomalous later finding of ammonium near Chiloe. Finally we discuss the mismanagement of risk throughout the events. | Comision Nacional de Investigacion Cientifica y Tecnologica (CONICYT) CONICYT FONDECYT 3150587
Mostrar más [+] Menos [-]The 2016 red tide crisis in southern Chile: Possible influence of the mass oceanic dumping of dead salmons Texto completo
2020
Armijo, Julien | Oerder, Vera | Auger, Pierre-Amaël | Bravo, Angela | Molina, Ernesto
In 2016, a massive harmful algal bloom (HAB) of Alexandrium catenella around Chiloé island caused one of the major socio-ecological crisis in Chilean history. This red tide occurred in two distinct pulses, the second, most anomalous, bursting with extreme toxicity on the Pacific coast, weeks after the highly controversial dumping off Chiloé of 4,700 t of rotting salmons, killed by a previous HAB of Pseudochattonella verruculosa. We study the transport of this pollution, analyzing the physical oceanographic conditions during and after the dumping. We find that a cyclonic gyre was present between the dumping site and the coast, visible in satellite altimetry and sea surface temperature data. Using Lagrangian simulations, we confirm that near-surface currents could have brought part of the pollution to the coast, and fueled the bloom. This scenario explains also the anomalous later finding of ammonium near Chiloé. Finally we discuss the mismanagement of risk throughout the events.
Mostrar más [+] Menos [-]The 2016 red tide crisis in southern Chile: Possible influence of the mass oceanic dumping of dead salmons Texto completo
2020
Armijo, Julien | Oerder, Vera | Auger, Pierre-amaël | Bravo, Angela | Molina, Ernesto
In 2016, a massive harmful algal bloom (HAB) of Alexandrium catenella around Chiloé island caused one of the major socio-ecological crisis in Chilean history. This red tide occurred in two distinct pulses, the second, most anomalous, bursting with extreme toxicity on the Pacific coast, weeks after the highly controversial dumping off Chiloé of 4,700 t of rotting salmons, killed by a previous HAB of Pseudochattonella verruculosa. We study the transport of this pollution, analyzing the physical oceanographic conditions during and after the dumping. We find that a cyclonic gyre was present between the dumping site and the coast, visible in satellite altimetry and sea surface temperature data. Using Lagrangian simulations, we confirm that near-surface currents could have brought part of the pollution to the coast, and fueled the bloom. This scenario explains also the anomalous later finding of ammonium near Chiloé. Finally we discuss the mismanagement of risk throughout the events.
Mostrar más [+] Menos [-]First measurement of human exposure to current use pesticides (CUPs) in the atmosphere of central Chile: The case study of Mauco cohort Texto completo
2020
Cortés, Sandra | Pozo, Karla | Llanos, Yasna | Martínez, Natalia | Foerster, Claudia | Leiva, Cinthya | Ustáriz, Javier | Přibylová, Petra | Klánová, Jana | Jorquera, Héctor
Chile is a leading agricultural producer and thus consumer of insecticides, herbicides, and fungicides. In Molina, Central Chile, a prospective cohort has been established for studying the incidence and risk factors of chronic diseases in the adult population. Our goals were to measure airborne current use pesticides (CUPs), assess their spatial distribution and potential sources, and estimate health risks for the population in Molina. CUPs were measured using passive air samplers (PAS), deployed on six sites from October 2015 to August 2016. Thirty-eight pesticides were analyzed using high performance liquid chromatography (HPLC), but only nine of them were detected. Chlorpyrifos (CPF) was detected with air concentrations ranging from 444 to 14 624 (pg m(-3)). Diazinon, atrazine, dimethoate, metolachlor, simazine, terbuthylazine and tebuconazole were also detected; only pendimethalin had concentrations as high as those of CPF, with a maximum of 14 927 (pg m(-3)). Backward wind trajectories were used to estimate locations of potential sources contributing to airborne CUPs concentrations. Most of the exposure to CUPs was associated with local sources, while regional sources southern/eastern/western of Molina appear to contribute as secondary sources (soil evaporation followed by atmospheric transport) in spring and summer seasons. A health risk assessment using US-EPA's methodology was carried out for inhalation exposure of detected pesticides. None of the measured CUPs were associated with a hazard quotient (HQ) greater than 1, indicating no significant risk due to inhalation of pesticides in Molina's population with the exception of the group of children below 12 years old. However, further investigations are needed to evaluate others CUPs exposure route such as food consumption and dermal exposure to improve our health risk estimations. | Comisión Nacional de Investigación Científica y Tecnológica (CONICYT) 15130011-15110020 180078 1161673 Vicerrectoria de Investigacion, Pontificia Universidad Catolica de Chile 9/2014 RECETOX Research Infrastructure LM2015051 CZ.02.1.01/0.0/0.0/16_013/0001761
Mostrar más [+] Menos [-]Occurrence of chlorpyrifos in the atmosphere of the Araucania Region in Chile using polyurethane foam-based passive air samplers Texto completo
2016
Pozo, Karla | Llanos, Yasna | Estellano, Victor H. | Cortes, Sandra | Jorquera, Hector | Gerli, Lorena | Pozo, Katerine | Encina Montoya, Francisco | Palma, Rodrigo | Focardi, Silvano
Little is known regarding the use and ambient levels of pesticides in Chilean agricultural regions. Chlorpyrifos (CPF) is one of the most used active ingredients in Chile and in the world. However, few investigations have been conducted to understand its environmental distribution and fate. In this study, PUF disk passive air samples were deployed during similar to one year in two areas, Angol (5 sites) and Villarrica (2 sites), in the Araucania Region. The concentration in air of CPF ranged from ten to thousands of pg m(-3) (similar to 20-14 600). The highest CPF concentrations were detected at the Angol sites (similar to 14 600 pg m(3)) during period 2 (August-December 2008). These results were higher by a factor of similar to 10-15 than those detected in Villarica sites (similar to 2000 pg m(3)) in period 1 (April-July 2008). Seasonal CPF variations were observed, at both sites, within the sampling periods. Air back trajectory analyses showed that air masses from nearby agricultural zones contributed most of the CPF detected in Angol sites when the wind speed was low and at Villarrica when those sources were likely located north of the VMA site. These results provide initial data for CPF in the Chilean atmosphere and contribute new information to understanding distribution of CPF in Chilean environments. Copyright (C) 2016 Turkish National Committee for Air Pollution Research and Control. Production and hosting by Elsevier B.V. All rights reserved.
Mostrar más [+] Menos [-]A review on occurrence of emerging pollutants in waters of the MENA region Texto completo
2021
Haddaoui, I. | Mateo-Sagasta, Javier
A review on occurrence of emerging pollutants in waters of the MENA region Texto completo
2021
Haddaoui, I. | Mateo-Sagasta, Javier
Little is known about the occurrence of emerging pollutants (EPs) in waters in the Middle East and North Africa (MENA) region despite the extensive use of low-quality water there. Available data dealing with the sources, occurrence and removal of EPs within the MENA region in different categories of water is collected, presented and analyzed in this literature review. According to the collected database, the occurrence and removal efficiency of EPs in the water matrix in the MENA region is available, respectively, for 13 and six countries of the 18 in total; no available data is registered for the rest. Altogether, 290 EPs have been observed in different water matrices across the MENA countries, stemming mainly from industrial effluents, agricultural practices, and discharge or reuse of treated wastewater (TWW). Pharmaceutical compounds figure among the most frequently reported compounds in wastewater, TWW, surface water, and drinking water. Nevertheless, pesticides are the most frequently detected pollutants in groundwater. Worryingly, 57 cases of EPs have been reported in different fresh and drinking waters, exceeding World Health Organization (WHO) and European Commission (EC) thresholds. Overall, pharmaceuticals, organic compounds, and pesticides are the most concerning EP groups. The review revealed the ineffectiveness of treatment processes used in the region to remove EPs. Negative removals of some EPs such as carbamazepine, erythromycin, and sulfamethoxazole were recorded, suggesting their possible accumulation or release during treatment. This underlines the need to set in place and strengthen control measures, treatment procedures, standards, and policies for such pollutants in the region.
Mostrar más [+] Menos [-]A review on occurrence of emerging pollutants in waters of the MENA region Texto completo
2021
Haddaoui, Imen | Mateo-Sagasta, Javier
Little is known about the occurrence of emerging pollutants (EPs) in waters in the Middle East and North Africa (MENA) region despite the extensive use of low-quality water there. Available data dealing with the sources, occurrence and removal of EPs within the MENA region in different categories of water is collected, presented and analyzed in this literature review. According to the collected database, the occurrence and removal efficiency of EPs in the water matrix in the MENA region is available, respectively, for 13 and six countries of the 18 in total; no available data is registered for the rest. Altogether, 290 EPs have been observed in different water matrices across the MENA countries, stemming mainly from industrial effluents, agricultural practices, and discharge or reuse of treated wastewater (TWW). Pharmaceutical compounds figure among the most frequently reported compounds in wastewater, TWW, surface water, and drinking water. Nevertheless, pesticides are the most frequently detected pollutants in groundwater. Worryingly, 57 cases of EPs have been reported in different fresh and drinking waters, exceeding World Health Organization (WHO) and European Commission (EC) thresholds. Overall, pharmaceuticals, organic compounds, and pesticides are the most concerning EP groups. The review revealed the ineffectiveness of treatment processes used in the region to remove EPs. Negative removals of some EPs such as carbamazepine, erythromycin, and sulfamethoxazole were recorded, suggesting their possible accumulation or release during treatment. This underlines the need to set in place and strengthen control measures, treatment procedures, standards, and policies for such pollutants in the region.
Mostrar más [+] Menos [-]Fluoride in weathered rock aquifers of southern India: managed aquifer recharge for mitigation Texto completo
2016
Brindha, Karthikeyan | Jagadeshan, G. | Kalpana, L. | Elango, L.
Fluoride in weathered rock aquifers of southern India: managed aquifer recharge for mitigation Texto completo
2016
Brindha, Karthikeyan | Jagadeshan, G. | Kalpana, L. | Elango, L.
Climatic condition, geology, and geochemical processes in an area play a major role on groundwater quality. Impact of these on the fluoride content of groundwater was studied in three regions-part of Nalgonda district in Telangana, Pambar River basin, and Vaniyar River basin in Tamil Nadu, southern India, which experience semi-arid climate and are predominantly made of Precambrian rocks. High concentration of fluoride in groundwater above 4 mg/l was recorded. Human exposure dose for fluoride through groundwater was higher in Nalgonda than the other areas. With evaporation and rainfall being one of the major contributors for high fluoride apart from the weathering of fluoride rich minerals from rocks, the effect of increase in groundwater level on fluoride concentration was studied. This study reveals that groundwater in shallow environment of all three regions shows dilution effect due to rainfall recharge. Suitable managed aquifer recharge (MAR) methods can be adopted to dilute the fluoride rich groundwater in such regions which is explained with two case studies. However, in deep groundwater, increase in fluoride concentration with increase in groundwater level due to leaching of fluoride rich salts from the unsaturated zone was observed. Occurrence of fluoride above 1.5 mg/l was more in areas with deeper groundwater environment. Hence, practicing MAR in these regions will increase the fluoride content in groundwater and so physica or chemical treatment has to be adopted. This study brought out the fact that MAR cannot be practiced in all regions for dilution of ions in groundwater and that it is essential to analyze the fluctuation in groundwater level and the fluoride content before suggesting it as a suitable solution. Also, this study emphasizes that long-term monitoring of these factors is an important criterion for choosing the recharge areas.
Mostrar más [+] Menos [-]Fluoride in weathered rock aquifers of southern India: Managed Aquifer Recharge for mitigation Texto completo
2016
Brindha, K. | Jagadeshan, G. | Kalpana, L. | Elango, L.
Climatic condition, geology, and geochemical processes in an area play a major role on groundwater quality. Impact of these on the fluoride content of groundwater was studied in three regions—part of Nalgonda district in Telangana, Pambar River basin, and Vaniyar River basin in Tamil Nadu, southern India, which experience semi-arid climate and are predominantly made of Precambrian rocks. High concentration of fluoride in groundwater above 4 mg/l was recorded. Human exposure dose for fluoride through groundwater was higher in Nalgonda than the other areas. With evaporation and rainfall being one of the major contributors for high fluoride apart from the weathering of fluoride rich minerals from rocks, the effect of increase in groundwater level on fluoride concentration was studied. This study reveals that groundwater in shallow environment of all three regions shows dilution effect due to rainfall recharge. Suitable managed aquifer recharge (MAR) methods can be adopted to dilute the fluoride rich groundwater in such regions which is explained with two case studies. However, in deep groundwater, increase in fluoride concentration with increase in groundwater level due to leaching of fluoride rich salts from the unsaturated zone was observed. Occurrence of fluoride above 1.5 mg/l was more in areas with deeper groundwater environment. Hence, practicing MAR in these regions will increase the fluoride content in groundwater and so physical or chemical treatment has to be adopted. This study brought out the fact that MAR cannot be practiced in all regions for dilution of ions in groundwater and that it is essential to analyze the fluctuation in groundwater level and the fluoride content before suggesting it as a suitable solution. Also, this study emphasizes that long-term monitoring of these factors is an important criterion for choosing the recharge areas.
Mostrar más [+] Menos [-]Fluoride in weathered rock aquifers of southern India: managed aquifer recharge for mitigation Texto completo
2016
Brindha, Karthikeyan | Jagadeshan, G. | Kalpana, L. | Elango, L.
Climatic condition, geology, and geochemical processes in an area play a major role on groundwater quality. Impact of these on the fluoride content of groundwater was studied in three regions-part of Nalgonda district in Telangana, Pambar River basin, and Vaniyar River basin in Tamil Nadu, southern India, which experience semi-arid climate and are predominantly made of Precambrian rocks. High concentration of fluoride in groundwater above 4 mg/l was recorded. Human exposure dose for fluoride through groundwater was higher in Nalgonda than the other areas. With evaporation and rainfall being one of the major contributors for high fluoride apart from the weathering of fluoride rich minerals from rocks, the effect of increase in groundwater level on fluoride concentration was studied. This study reveals that groundwater in shallow environment of all three regions shows dilution effect due to rainfall recharge. Suitable managed aquifer recharge (MAR) methods can be adopted to dilute the fluoride rich groundwater in such regions which is explained with two case studies. However, in deep groundwater, increase in fluoride concentration with increase in groundwater level due to leaching of fluoride rich salts from the unsaturated zone was observed. Occurrence of fluoride above 1.5 mg/l was more in areas with deeper groundwater environment. Hence, practicing MAR in these regions will increase the fluoride content in groundwater and so physica or chemical treatment has to be adopted. This study brought out the fact that MAR cannot be practiced in all regions for dilution of ions in groundwater and that it is essential to analyze the fluctuation in groundwater level and the fluoride content before suggesting it as a suitable solution. Also, this study emphasizes that long-term monitoring of these factors is an important criterion for choosing the recharge areas.
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
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