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Surface water quality, public health, and ecological risks in Bangladesh—a systematic review and meta-analysis over the last two decades Texte intégral
2023
Bilal, H. | Li, X. | Iqbal, Muhammad Shahid | Mu, Y. | Tulcan, R. X. S. | Ghufran, M. A.
Surface water quality, public health, and ecological risks in Bangladesh—a systematic review and meta-analysis over the last two decades Texte intégral
2023
Bilal, H. | Li, X. | Iqbal, Muhammad Shahid | Mu, Y. | Tulcan, R. X. S. | Ghufran, M. A.
Water quality has recently emerged as one of the utmost severe ecological problems being faced by the developing countries all over the world, and Bangladesh is no exception. Both surface and groundwater sources contain different contaminants, which lead to numerous deaths due to water-borne diseases, particularly among children. This study presents one of the most comprehensive reviews on the current status of water quality in Bangladesh with a special emphasis on both conventional pollutants and emerging contaminants. Data show that urban rivers in Bangladesh are in a critical condition, especially Korotoa, Teesta, Rupsha, Pashur, and Padma. The Buriganga River and few locations in the Turag, Balu, Sitalakhya, and Karnaphuli rivers have dissolvable oxygen (DO) levels of almost zero. Many waterways contain traces of NO3, NO2, and PO4-3 pollutants. The majority of the rivers in Bangladesh also have Zn, Cu, Fe, Pb, Cd, Ni, Mn, As, and Cr concentrations that exceed the WHO permissible limits for safe drinking water, while their metal concentrations exceed the safety threshold for irrigation. Mercury poses the greatest hazard with 90.91% of the samples falling into the highest risk category. Mercury is followed by zinc 57.53% and copper 29.16% in terms of the dangers they pose to public health and the ecosystem. Results show that a considerable percentage of the population is at risk, being exposed to contaminated water. Despite hundreds of cryptosporidiosis cases reported, fecal contamination, i.e., Cryptosporidium, is totally ignored and need serious considerations to be regularly monitored in source water.
Afficher plus [+] Moins [-]Surface water quality, public health, and ecological risks in Bangladesh—a systematic review and meta-analysis over the last two decades Texte intégral
How can magnetic resonance imaging (MRI) and particulate contrast agents with finely tuned interfacial properties help understanding particle transport in soil. Texte intégral
2012
Michel, E. | Faure, P. | Guillet, P. | Lafolie, Francois | Neveu, S. | Sammartino, Stéphane | Polidori, A. | Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC) ; Institut Ecologie et Environnement - CNRS Ecologie et Environnement (INEE-CNRS) ; Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Terre et Environnement de Lorraine (OTELo) ; Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS) | Environnement Méditerranéen et Modélisation des Agro-Hydrosystèmes (EMMAH) ; Avignon Université (AU)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)
International audience
Afficher plus [+] Moins [-]DNA damage in caged Gammarus fossarum amphipods: A tool for freshwater genotoxicity assessment | Dommages à l'ADN chez l'amphipode Gammarus fossarum encagés : un outil pour le suivi de la génotoxicité des milieux dulçaquicoles Texte intégral
2011
Lacaze, Emilie | Devaux, Alain | Mons, R. | Bony, Sylvie | Garric, Jeanne | Geffard, Adeline | Geffard, Olivier | Milieux aquatiques, écologie et pollutions (UR MALY) ; Centre national du machinisme agricole, du génie rural, des eaux et forêts (CEMAGREF) | Institut National de la Recherche Agronomique (INRA) | Université de Reims Champagne-Ardenne (URCA)
[Departement_IRSTEA]Eaux [TR1_IRSTEA]BELCA | International audience | The aim of this study was to propose a tool for freshwater environmental genotoxicity assessment using Gammarus fossarum, a high ecologically relevant species. In a first part, gammarids were caged upstream and downstream wastewater treatment plant effluent output. The sensitivity of genotoxic responses of haemocytes, oocytes and spermatozoa was compared using the Comet assay. Spermatozoa appeared to be the most sensitive, suitable and relevant cell type for genotoxicity risk assessment. In a second part, a watershed-scale study was conducted over 2 years to evaluate the applicability of our caging procedure. The genotoxic impact of a contamination was followed, taking into account seasonal variability. DNA damage in spermatozoa exhibited low basal level and low variability in control upstream sites, providing a reliable discrimination of polluted sites. Finally, DNA damage in caged G. fossarum has been proved to be a sensitive and reproducible tool for freshwater genotoxicity assessment.
Afficher plus [+] Moins [-]A field method using microcosms to evaluate transfer of Cd, Cu, Ni, Pb and Zn from sewage sludge amended forest soils to Helix aspersa snails. Texte intégral
2002
Scheifler, R | Ben Brahim, M | Vaufleury, Annette Gomot-De | Carnus, J-M | Badot, P-M | Laboratoire Chrono-environnement (UMR 6249) (LCE) ; Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC) ; Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC) | Centre de Sfax ; Centre de Sfax | Institut National de la Recherche Agronomique (INRA)
International audience | Juvenile Helix aspersa snails exposed in field microcosms were used to assess the transfer of Cd, Cu, Ni, Pb and Zn from forest soils amended with liquid and composted sewage sludge. Zn concentrations and contents were significantly higher in snails exposed to liquid and composted sludge after 5 and 7 weeks of exposure, when compared with control. Trends were less clear for the other metals. Present results show that Zn, among the cocktail of metallic trace elements (MTE) coming from sewage sludge disposal, represents the principal concern for food chain transfer and secondary poisoning risks. The microcosm design used in this experiment was well suited for relatively long-term (about 2 months) active biomonitoring with H. aspersa snails. The snails quickly indicated the variations of MTE concentrations in their immediate environment. Therefore, the present study provides a simple but efficient field tool to evaluate MTE bioavailability and transfer.
Afficher plus [+] Moins [-]The mass budget of atmospheric ammonia in woodland within 1 km of livestock buildings Texte intégral
1998
Fowler, D. | Pitcairn, C.E.R. | Sutton, Mark | Flechard, C. | Loubet, Benjamin | Coyle, M. | Munro, R.C. | Unité de recherches en bioclimatologie ; Institut National de la Recherche Agronomique (INRA)
International audience
Afficher plus [+] Moins [-]Thallium in french agrosystems. 1. Thallium contents in arable soils Texte intégral
1997
Tremel, Anne | Masson, P. | Sterckeman, Thibault | Baize, Denis | Mench, Michel | Institut francilien recherche, innovation et société (IFRIS) ; Institut National de la Recherche Agronomique (INRA)-École des hautes études en sciences sociales (EHESS)-OST-Université Paris-Est Marne-la-Vallée (UPEM)-Ministère de l'Education nationale, de l’Enseignement supérieur et de la Recherche (M.E.N.E.S.R.)-ESIEE Paris-Centre National de la Recherche Scientifique (CNRS) | Laboratoire d'Analyses des Sols (LAS) ; Institut National de la Recherche Agronomique (INRA) | Unité de recherche Science du Sol (USS) ; Institut National de la Recherche Agronomique (INRA)
International audience
Afficher plus [+] Moins [-]Cadmium availability to wheat in five soil series from the Yonne district, Burgundy, France Texte intégral
1997
Mench, Michel | Baize, Denis | Mocquot, B. | Unité d'agronomie ; Institut National de la Recherche Agronomique (INRA) | Unité de recherche Science du Sol (USS) ; Institut National de la Recherche Agronomique (INRA)
International audience
Afficher plus [+] Moins [-]Effects of the phenylurea herbicide isoproturon on periphytic diatom communities in freshwater indoor microcosms | Effets de l'herbicide phenylurea isoproturon sur les communautés de diatomées périphytiques des microcosmes internes d'eau douce Texte intégral
1996
Pérès, F. | Florin, D. | Grollier, T. | Feurtet Mazel, A. | Coste, Michel | Ribeyre, Francis | Ricard, M. | Boudou, A. | Qualité des eaux (UR QEBX) ; Centre national du machinisme agricole, du génie rural, des eaux et forêts (CEMAGREF) | Université de Bordeaux (UB)
[Departement_IRSTEA]GMA [TR1_IRSTEA]GMA3-Altérations physico-chimiques et biologiques des écosystèmes d'eau courante | International audience | The toxic effects of the phenylurea herbicide Isoproturon were studied on the colonization of periphytic diatom communities, within indoor microcosms consisting of a mixed biotope and two biological species-rooted macrophyte cuttings. The periphyton, essentially composed of diatoms, was collected on artificial substrata in the upper layers of the water column, after two periods of exposure. Data treatment based on factorial discriminant analysis enabled us to distinguish the different contamination conditions, with only 11 species from the 130 taxa identified. | Les effets toxiques de l'herbicide à base de phénylurée Isoproturon ont été étudiés sur la colonisation de communautés de diatomées périphytiques dans des microcosmes intérieurs consistant en un biotope mixte et deux boutures macrophytes à racines d'espèce biologique. Le périphyton, essentiellement composé de diatomées, a été collecté sur des substrats artificiels dans les couches supérieures de la colonne d'eau après deux périodes d'exposition. Le traitement des données basé sur l'analyse des facteurs discriminants nous a permis de distinguer les différentes conditions de contamination avec uniquement 11 espèces parmi les 130 classes identifiées.
Afficher plus [+] Moins [-]The arbuscular mycorrhizal fungus Rhizophagus irregularis uses the copper exporting ATPase RiCRD1 as a major strategy for copper detoxification Texte intégral
2023
Gómez-Gallego, Tamara | Molina-Luzón, Ma, Jesús | Conéjéro, Genevieve | Berthomieu, Pierre | Ferrol, Nuria | Department of Physiology and Biochemistry of Animal Nutrition, Estación Experimental del Zaidín, Spanish National Research Council (CSIC), Granada, Spain | Institut des Sciences des Plantes de Montpellier (IPSIM) ; Centre National de la Recherche Scientifique (CNRS)-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) | CSIC, Estn Expt Zaidin, Dept Microbiol Suelo & Sistemas Simbiot, Granada, Spain
Arbuscular mycorrhizal (AM) fungi establish a mutualistic symbiosis with most land plants. AM fungi regulate plant copper (Cu) acquisition both in Cu deficient and polluted soils. Here, we report characterization of RiCRD1, a Rhizophagus irregularis gene putatively encoding a Cu transporting ATPase. Based on its sequence analysis, RiCRD1 was identified as a plasma membrane Cu (+) efflux protein of the P(1B1)-ATPase subfamily. As revealed by heterologous complementation assays in yeast, RiCRD1 encodes a functional protein capable of conferring increased tolerance against Cu. In the extraradical mycelium, RiCRD1 expression was highly up-regulated in response to high concentrations of Cu in the medium. Comparison of the expression patterns of different players of metal tolerance in R. irregularis under high Cu levels suggests that this fungus could mainly use a metal efflux based-strategy to cope with Cu toxicity. RiCRD1 was also expressed in the intraradical fungal structures and, more specifically, in the arbuscules, which suggests a role for RiCRD1 in Cu release from the fungus to the symbiotic interface. Overall, our results show that RiCRD1 encodes a protein which could have a pivotal dual role in Cu homeostasis in R. irregularis, playing a role in Cu detoxification in the extraradical mycelium and in Cu transfer to the apoplast of the symbiotic interface in the arbuscules.
Afficher plus [+] Moins [-]Temporal dynamic of anthropogenic fibers in a tropical river-estuarine system Texte intégral
2020
Strady, Emilie | Kieu-Le, Thuy-Chung | Gasperi, Johnny | Tassin, Bruno | 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) | Centre Asiatique de Recherche sur l'Eau (CARE) ; Ho Chi Minh City University of Technology [Vietnam National University, HCM] (HCMUT) ; Vietnam National University, Ho Chi Minh City / Đại học Quốc gia TP. Hồ Chí Minh (VNU-HCM)-Vietnam National University, Ho Chi Minh City / Đại học Quốc gia TP. Hồ Chí Minh (VNU-HCM) | Institut des Géosciences de l’Environnement (IGE) ; Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Grenoble (Fédération OSUG)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP) ; Université Grenoble Alpes (UGA) | Ho Chi Minh City University of Technology [Vietnam National University, HCM] (HCMUT) ; Vietnam National University, Ho Chi Minh City / Đại học Quốc gia TP. Hồ Chí Minh (VNU-HCM) | Laboratoire Eau Environnement et Systèmes Urbains (LEESU) ; AgroParisTech-École nationale des ponts et chaussées (ENPC)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12) | Eau et Environnement (GERS-LEE) ; Université Gustave Eiffel
Temporal dynamic of anthropogenic fibers in a tropical river-estuarine system Texte intégral
2020
Strady, Emilie | Kieu-Le, Thuy-Chung | Gasperi, Johnny | Tassin, Bruno | 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) | Centre Asiatique de Recherche sur l'Eau (CARE) ; Ho Chi Minh City University of Technology [Vietnam National University, HCM] (HCMUT) ; Vietnam National University, Ho Chi Minh City / Đại học Quốc gia TP. Hồ Chí Minh (VNU-HCM)-Vietnam National University, Ho Chi Minh City / Đại học Quốc gia TP. Hồ Chí Minh (VNU-HCM) | Institut des Géosciences de l’Environnement (IGE) ; Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Grenoble (Fédération OSUG)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP) ; Université Grenoble Alpes (UGA) | Ho Chi Minh City University of Technology [Vietnam National University, HCM] (HCMUT) ; Vietnam National University, Ho Chi Minh City / Đại học Quốc gia TP. Hồ Chí Minh (VNU-HCM) | Laboratoire Eau Environnement et Systèmes Urbains (LEESU) ; AgroParisTech-École nationale des ponts et chaussées (ENPC)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12) | Eau et Environnement (GERS-LEE) ; Université Gustave Eiffel
International audience | Anthropogenic fibers, gathering synthetic fibers, artificial fibers and natural fibers are ubiquitous in the natural environment. Tremendous concentrations of anthropogenic fibers were previously measured in the tropical Saigon River (Vietnam), i.e. a river impacted by textile and apparel industries. In the present study, we want to examine the role of contrasted seasonal variation (e.g., dry and rainy seasons), via the rainfall and monthly water discharges, and of water's physico-chemical conditions on the concentrations of anthropogenic fibers in the surface water. The one year and half monthly survey evidenced that concentrations of anthropogenic fibers varied from 22 to 251 items L-1 and their variations were not related to rainfall, water discharge or abiotic factors. However, their color and length distribution varied monthly suggesting variations in sources and sinks. Based on the 2017 survey, we estimated an annual emission of anthropogenic fibers from the river to the downstream coastal zone of 115e164 × 10 12 items yr-1.
Afficher plus [+] Moins [-]Temporal dynamic of anthropogenic fibers in a tropical river-estuarine system Texte intégral
2020
Strady, Emilie | Kieu-Le, Thuy-Chung | Gasperi, Johnny | Tassin, Bruno
Anthropogenic fibers, gathering synthetic fibers, artificial fibers and natural fibers are ubiquitous in the natural environment. Tremendous concentrations of anthropogenic fibers were previously measured in the tropical Saigon River (Vietnam), i.e. a river impacted by textile and apparel industries. In the present study, we want to examine the role of contrasted seasonal variation (e.g., dry and rainy seasons), via the rainfall and monthly water discharges, and of water's physico-chemical conditions on the concentrations of anthropogenic fibers in the surface water. The one year and half monthly survey evidenced that concentrations of anthropogenic fibers varied from 22 to 251 items L⁻¹ and their variations were not related to rainfall, water discharge or abiotic factors. However, their color and length distribution varied monthly suggesting variations in sources and sinks. Based on the 2017 survey, we estimated an annual emission of anthropogenic fibers from the river to the downstream coastal zone of 115–164 × 10¹² items yr⁻¹.
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