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Heredia C, Guédron S, Point D, Perrot V, Campillo S, Verin C, Espinoza ME, Fernandez P, Duwig C, Achá D. Anthropogenic eutrophication of Lake Titicaca (Bolivia) revealed by carbon and nitrogen stable isotopes fingerprinting. Sci Total Environ 2022; 845:157286. [PMID: 35835190 DOI: 10.1016/j.scitotenv.2022.157286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 06/16/2022] [Accepted: 07/07/2022] [Indexed: 06/15/2023]
Abstract
Cultural eutrophication is the leading cause of water quality degradation worldwide. The traditional monitoring of eutrophication is time-consuming and not integrative in space and time. Here, we examined the use of carbon (δ13C) and nitrogen (δ15N) isotopic composition to track the degree of eutrophication in a bay of Lake Titicaca impacted by anthropogenic (urban, industrial and agricultural wastewater) discharges. Our results show increasing δ13C and decreasing δ15N signatures in macrophytes and suspended particulate matter with distance to the wastewater source. In contrast to δ15N and δ13C signatures, in-between aquatic plants distributed along the slope were not only affected by anthropogenic discharges but also by the pathway of carbon uptake, i.e., atmospheric (emerged) vs aquatic (submerged). A binary mixing model elaborated from pristine and anthropogenic isotope end-members allowed the assessment of anthropogenically derived C and N incorporation in macrophytes with distance to the source. Higher anthropogenic contribution was observed during the wet season, attributed to enhanced wastewater discharges and leaching of agricultural areas. For both seasons, eutrophication was however found naturally attenuated within 6 to 8 km from the wastewater source. Here, we confirm that carbon and nitrogen stable isotopes are simple, integrative and time-saving tools to evaluate the degree of eutrophication (seasonally or annually) in anthropogenically impacted aquatic ecosystems.
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Affiliation(s)
- C Heredia
- Université Grenoble Alpes, Université Savoie Mont Blanc, CNRS, IRD, IFSTAR, ISTerre, 38000 Grenoble, France.; Instituto de Ecología, Unidad de Calidad Ambiental (UCA), Carrera de Biología, Universidad Mayor de San Andrés, Campus Universitario de Cota Cota, casilla 3161, La Paz, Bolivia..
| | - S Guédron
- Université Grenoble Alpes, Université Savoie Mont Blanc, CNRS, IRD, IFSTAR, ISTerre, 38000 Grenoble, France.; Laboratorio de Hidroquímica - Instituto de Investigaciones Químicas - Universidad Mayor de San Andrés, Campus Universitario de Cota-Cota, casilla 3161, La Paz, Bolivia
| | - D Point
- Instituto de Ecología, Unidad de Calidad Ambiental (UCA), Carrera de Biología, Universidad Mayor de San Andrés, Campus Universitario de Cota Cota, casilla 3161, La Paz, Bolivia.; Géosciences Environnement Toulouse (GET) - Institut de Recherche pour le Développement (IRD), CNRS, Université de Toulouse, France
| | - V Perrot
- Université Grenoble Alpes, Université Savoie Mont Blanc, CNRS, IRD, IFSTAR, ISTerre, 38000 Grenoble, France
| | - S Campillo
- Université Grenoble Alpes, Université Savoie Mont Blanc, CNRS, IRD, IFSTAR, ISTerre, 38000 Grenoble, France
| | - C Verin
- Université Grenoble Alpes, Université Savoie Mont Blanc, CNRS, IRD, IFSTAR, ISTerre, 38000 Grenoble, France
| | - M E Espinoza
- Instituto de Ecología, Unidad de Calidad Ambiental (UCA), Carrera de Biología, Universidad Mayor de San Andrés, Campus Universitario de Cota Cota, casilla 3161, La Paz, Bolivia
| | - P Fernandez
- Instituto de Ecología, Unidad de Calidad Ambiental (UCA), Carrera de Biología, Universidad Mayor de San Andrés, Campus Universitario de Cota Cota, casilla 3161, La Paz, Bolivia
| | - C Duwig
- Laboratorio de Hidroquímica - Instituto de Investigaciones Químicas - Universidad Mayor de San Andrés, Campus Universitario de Cota-Cota, casilla 3161, La Paz, Bolivia.; Univ. Grenoble Alpes, Univ. Savoie Mont Blanc, CNRS, IRD, IFSTTAR, IGE, 38000 Grenoble, France
| | - D Achá
- Instituto de Ecología, Unidad de Calidad Ambiental (UCA), Carrera de Biología, Universidad Mayor de San Andrés, Campus Universitario de Cota Cota, casilla 3161, La Paz, Bolivia
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Oestreicher U, Samaga D, Ainsbury E, Antunes AC, Baeyens A, Barrios L, Beinke C, Beukes P, Blakely WF, Cucu A, De Amicis A, Depuydt J, De Sanctis S, Di Giorgio M, Dobos K, Dominguez I, Duy PN, Espinoza ME, Flegal FN, Figel M, Garcia O, Monteiro Gil O, Gregoire E, Guerrero-Carbajal C, Güçlü İ, Hadjidekova V, Hande P, Kulka U, Lemon J, Lindholm C, Lista F, Lumniczky K, Martinez-Lopez W, Maznyk N, Meschini R, M’kacher R, Montoro A, Moquet J, Moreno M, Noditi M, Pajic J, Radl A, Ricoul M, Romm H, Roy L, Sabatier L, Sebastià N, Slabbert J, Sommer S, Stuck Oliveira M, Subramanian U, Suto Y, Que T, Testa A, Terzoudi G, Vral A, Wilkins R, Yanti L, Zafiropoulos D, Wojcik A. RENEB intercomparisons applying the conventional Dicentric Chromosome Assay (DCA). Int J Radiat Biol 2016; 93:20-29. [DOI: 10.1080/09553002.2016.1233370] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Ursula Oestreicher
- Bundesamt fuer Strahlenschutz, Department Radiation Protection and Health, Oberschleissheim, Germany
| | - Daniel Samaga
- Bundesamt fuer Strahlenschutz, Department Radiation Protection and Health, Oberschleissheim, Germany
| | - Elizabeth Ainsbury
- Public Health England, Centre for Radiation Chemical and Environmental Hazards, Chilton, Oxfordshire, UK
| | - Ana Catarina Antunes
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Bobadela-LRS, Lisbon, Portugal
| | | | | | - Christina Beinke
- Bundeswehr Institute of Radiobiology affiliated to the University of Ulm, Munich, Germany
| | | | - William F. Blakely
- Armed Forces Radiobiology Research Institute, Uniformed Service University of the Health Sciences, Bethesda, USA
| | | | | | - Julie Depuydt
- Faculty of Medicine and Health Sciences, Universiteit Gent, Gent, Belgium
| | | | | | - Katalin Dobos
- National Research Institute for Radiobiology & Radiohygiene, Budapest, Hungary
| | | | - Pham Ngoc Duy
- Center of Biotechnology, Nuclear Research Institute, Dalat, Vietnam
| | | | - Farrah N. Flegal
- Canadian Nuclear Laboratories, Radiobiology & Health, Chalk River, Ontario, Canada
| | - Markus Figel
- Helmholtz Zentrum München, Auswertungsstelle für Strahlendosimeter
| | - Omar Garcia
- Centro de Protección e Higiene de las Radiaciones (CPHR), La Havana. Cuba
| | - Octávia Monteiro Gil
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Bobadela-LRS, Lisbon, Portugal
| | - Eric Gregoire
- Institut de Radioprotection et de Sûreté Nucléaire, Fontenay-aux-Roses, France
| | | | - İnci Güçlü
- Turkish Atomic Energy Authority, Cekmece Nuclear Research and Traning Center Radiobiology Unit Yarımburgaz, Istanbul, Turkey
| | | | - Prakash Hande
- Department of Physiology, Yong Loo Lin School of Medicine: National University of Singapore, Singapore
| | - Ulrike Kulka
- Bundesamt fuer Strahlenschutz, Department Radiation Protection and Health, Oberschleissheim, Germany
| | | | | | - Florigio Lista
- Army Medical and Veterinary Research Center, Rome, Italy
| | - Katalin Lumniczky
- National Research Institute for Radiobiology & Radiohygiene, Budapest, Hungary
| | | | - Nataliya Maznyk
- Institute for Medical Radiology of National Academy of Medical Science of Ukraine, Kharkiv, Ukraine
| | | | - Radia M’kacher
- PROCyTOX, Commissariat à l’Energie Atomique et aux Energies Alternatives, Fontenay-aux-Roses, France and Université Paris-Saclay, France
| | - Alegria Montoro
- Fundacion para la Investigation del Hospital Universitario la Fe de la Comunidad Valenciana, Valencia, Spain
| | - Jayne Moquet
- Public Health England, Centre for Radiation Chemical and Environmental Hazards, Chilton, Oxfordshire, UK
| | - Mercedes Moreno
- Servicio Madrileño de Salud – Hospital General Universitario Gregorio Marañón, Spain
| | | | - Jelena Pajic
- Serbian Institute of Occupational Health, Radiation Protection Center, Belgrade, Serbia
| | - Analía Radl
- Autoridad Regulatoria Nuclear (ARN), Buenos Aires, Argentina
| | - Michelle Ricoul
- PROCyTOX, Commissariat à l’Energie Atomique et aux Energies Alternatives, Fontenay-aux-Roses, France and Université Paris-Saclay, France
| | - Horst Romm
- Bundesamt fuer Strahlenschutz, Department Radiation Protection and Health, Oberschleissheim, Germany
| | - Laurence Roy
- Institut de Radioprotection et de Sûreté Nucléaire, Fontenay-aux-Roses, France
| | - Laure Sabatier
- PROCyTOX, Commissariat à l’Energie Atomique et aux Energies Alternatives, Fontenay-aux-Roses, France and Université Paris-Saclay, France
| | - Natividad Sebastià
- Fundacion para la Investigation del Hospital Universitario la Fe de la Comunidad Valenciana, Valencia, Spain
| | | | | | | | - Uma Subramanian
- Armed Forces Radiobiology Research Institute, Uniformed Service University of the Health Sciences, Bethesda, USA
| | - Yumiko Suto
- National Institute of Radiological Sciences, Chiba, Japan
| | - Tran Que
- Center of Biotechnology, Nuclear Research Institute, Dalat, Vietnam
| | - Antonella Testa
- Agenzia Nazionale per le Nuove Tecnologie, ĹEnergia e lo Sviluppo Economico Sostenibile, Rome, Italy
| | - Georgia Terzoudi
- National Center for Scientific Research “Demokritos”, NCSR”D”, Greece
| | - Anne Vral
- Faculty of Medicine and Health Sciences, Universiteit Gent, Gent, Belgium
| | | | - LusiYanti Yanti
- Center for Technology of Radiation Safety and Metrology, National Nuclear Energy Agency, Batan, Indonesia
| | | | - Andrzej Wojcik
- Stockholm University, Institute Molecular Biosciences, Stockholm, Sweden
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Di Giorgio M, Barquinero JF, Vallerga MB, Radl A, Taja MR, Seoane A, De Luca J, Oliveira MS, Valdivia P, Lima OG, Lamadrid A, Mesa JG, Aguilera IR, Cardoso TM, Carvajal YCG, Maldonado CA, Espinoza ME, Martínez-López W, Méndez-Acuña L, Di Tomaso MV, Roy L, Lindholm C, Romm H, Güçlü I, Lloyd DC. Biological dosimetry intercomparison exercise: an evaluation of triage and routine mode results by robust methods. Radiat Res 2011; 175:638-49. [PMID: 21306200 DOI: 10.1667/rr2425.1] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Well-defined protocols and quality management standards are indispensable for biological dosimetry laboratories. Participation in periodic proficiency testing by interlaboratory comparisons is also required. This harmonization is essential if a cooperative network is used to respond to a mass casualty event. Here we present an international intercomparison based on dicentric chromosome analysis for dose assessment performed in the framework of the IAEA Regional Latin American RLA/9/054 Project. The exercise involved 14 laboratories, 8 from Latin America and 6 from Europe. The performance of each laboratory and the reproducibility of the exercise were evaluated using robust methods described in ISO standards. The study was based on the analysis of slides from samples irradiated with 0.75 (DI) and 2.5 Gy (DII). Laboratories were required to score the frequency of dicentrics and convert them to estimated doses, using their own dose-effect curves, after the analysis of 50 or 100 cells (triage mode) and after conventional scoring of 500 cells or 100 dicentrics. In the conntional scoring, at both doses, all reported frequencies were considered as satisfactory, and two reported doses were considered as questionable. The analysis of the data dispersion among the dicentric frequencies and among doses indicated a better reproducibility for estimated doses (15.6% for DI and 8.8% for DII) than for frequencies (24.4% for DI and 11.4% for DII), expressed by the coefficient of variation. In the two triage modes, although robust analysis classified some reported frequencies or doses as unsatisfactory or questionable, all estimated doses were in agreement with the accepted error of ±0.5 Gy. However, at the DI dose and for 50 scored cells, 5 out of the 14 reported confidence intervals that included zero dose and could be interpreted as false negatives. This improved with 100 cells, where only one confidence interval included zero dose. At the DII dose, all estimations fell within ±0.5 Gy of the reference dose interval. The results obtained in this triage exercise indicated that it is better to report doses than frequencies. Overall, in both triage and conventional scoring modes, the laboratory performances were satisfactory for mutual cooperation purposes. These data reinforce the view that collaborative networking in the case of a mass casualty event can be successful.
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Affiliation(s)
- M Di Giorgio
- Autoridad Regulatoria Nuclear (ARN), Av. Del Libertador 8250, C1429BNP, Buenos Aires, Argentina.
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