Browsing by Autor "Prosun Bhattacharya"
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Item type: Item , ARSENIC AND OTHER GEOGENIC CONTAMINANTS IN THE HYDROLOGIC AND HYDROGEOLOGICAL SYSTEM OF THE BOLIVIAN ALTIPLANO(Geological Society of America, 2023) Prosun Bhattacharya; Lizángela Huallpara; Mauricio Ormachea; Oswaldo Eduardo Ramos RamosItem type: Item , Arsenic and other trace elements in thermal springs and in cold waters from drinking water wells on the Bolivian Altiplano(Elsevier BV, 2015) Mauricio Ormachea; Prosun Bhattacharya; Ondra Šráček; Oswaldo Ramos Ramos; Jorge Quintanilla Aguirre; Jochen Bundschuh; Jyoti Prakash MaityItem type: Item , Arsenic mobility in hydrogeologic system of Bolivian Altiplano: Status and comparison of the Lower Katari and Southern Poopó Basins(2024) Israel Quino Lima; Mauricio Ormachea; Oswaldo Eduardo Ramos Ramos; Javier Quintanilla; Jyoti Prakash Maity; Ahmad Arslan; Prosun BhattacharyaWater resource in LKB (Lower Katari Basin) and SPB (Southern Poopó Basin) [TDPS (Lake Titicaca – Desaguadero River – Lake Poopó – Salt Flat of Coipasa) system] the southeastern part of Lake Titicaca and Lake Poopó in Bolivian Altiplano are contaminated with high concentrations of arsenic (As) (>10 μg/L) compared to the WHO and NB-512 guideline. Studied regions are characterized by a semiarid climate, slow hydrological flow, with geological formations of volcanic origin including brines and mineral deposits. The investigation focused on evaluating the present status and comparison of the geochemical processes of As in relation to the sources and mobilization in groundwater (GW) in LKB and SPB. Groundwater (GW), surface water (SW) and sediment samples were collected from both basins. The elevated concentration of As (LKB: 0.8–288 μg/L and SPB: 2.6–207 μg/L), boron (B) (LKB: 96–2473 μg/L and SPB: 507–4359 μg/L), manganese (Mn) (LKB: 0.6–7259 μg/L) and salinity (LKB: 125–11740 μS/cm) were observed in water compared to the WHO limit and is a serious concern about the GW quality for human consumption. The mineralization of GW is governing by the dissolution and exchange process of bases and anthropogenic generated solids and liquids effects the surface water quality in LKB as well as river bank communities. The spatial distribution of As was attributed to the geology of both the basins and the heterogeneously distributed evaporites in the sediments. The concentrations of As are found in alluvial sediments in northern region of LKB and “PACK belt” (an approximately 25 km long belt stretching along the southern shores of the Lake Poopó, between the villages of Pampa Aullagas and Condo K) in SPB, where iron (Fe) and aluminum (Al) oxides as well as hydroxides are the most predominant mineral phases as potential sorbents of As.Item type: Item , CONTAMINACION GEOGENICA E HIDROGEOQUIMICA DE: ARSENICO, BORO, FLUORURO Y LITIO EN AGUAS SUBTERRANEAS Y SUPERFICIALES DEL ALTIPLANO BOLIVIANO(Geological Society of America, 2024) Lizangela Huallpara Lliully; Mauricio Ormachea; Prosun BhattacharyaItem type: Item , Contrasting controls on hydrogeochemistry of arsenic-enriched groundwater in the homologous tectonic settings of Andean and Himalayan basin aquifers, Latin America and South Asia(Elsevier BV, 2019) Poulomee Coomar; Abhijit Mukherjee; Prosun Bhattacharya; Jochen Bundschuh; Swati Verma; Alan E. Fryar; Oswaldo Eduardo Ramos Ramos; Mauricio Ormachea; Saibal Gupta; Chandan MahantaItem type: Item , Fractionation of heavy metals and assessment of contamination of the sediments of Lake Titicaca(Springer Science+Business Media, 2013) Luis Fernando Cáceres Choque; Oswaldo Eduardo Ramos Ramos; Sulema N. Valdez Castro; Rigoberto Rogelio Choque Aspiazu; Rocío G. Choque Mamani; Samuel G. Fernández Alcazar; Ondra Šráček; Prosun BhattacharyaItem type: Item , Geochemical mechanisms of natural arsenic mobility in the hydrogeologic system of Lower Katari Basin, Bolivian Altiplano(Elsevier BV, 2020) Israel Quino Lima; Oswaldo Eduardo Ramos Ramos; Mauricio Ormachea; María Isabel Chambi Tapia; Jorge Quintanilla Aguirre; Ahmad Arslan; Jyoti Prakash Maity; Md. Tahmidul Islam; Prosun BhattacharyaItem type: Item , Geochemical processes controlling mobilization of arsenic and trace elements in shallow aquifers and surface waters in the Antequera and Poopó mining regions, Bolivian Altiplano(Elsevier BV, 2014) Oswaldo Eduardo Ramos Ramos; Tobías S. Rötting; Megan French; Ondra Šráček; Jochen Bundschuh; Jorge Quintanilla; Prosun BhattacharyaItem type: Item , Geochemistry of naturally occurring arsenic in groundwater and surface-water in the southern part of the Poopó Lake basin, Bolivian Altiplano(Elsevier BV, 2016) Mauricio Ormachea; J. L. García-Aróstegui; Prosun Bhattacharya; Ondra Šráček; María Eugenia García Moreno; Claus Kohfahl; Jorge Quintanilla Aguirre; Jorge Hornero Diaz; Jochen BundschuhItem type: Item , Geogenic arsenic and other trace elements in the shallow hydrogeologic system of Southern Poopó Basin, Bolivian Altiplano(Elsevier BV, 2013) Mauricio Ormachea; Hannes Wern; Fredrick Johnsson; Prosun Bhattacharya; Ondra Šráček; Roger Thunvik; Jorge Quintanilla; Jochen BundschuhItem type: Item , Hydrochemical assessment with respect to arsenic and other trace elements in the Lower Katari Basin, Bolivian Altiplano(Elsevier BV, 2018) Israel Quino Lima; Mauricio Ormachea; Oswaldo Eduardo Ramos Ramos; Prosun Bhattacharya; R. Choque; Jorge Quintanilla Aguirre; Ondra ŠráčekItem type: Item , HYDROCHEMISTRY AND SPATIAL VARIATION OF ARSENIC, BORON AND OTHER TRACE ELEMENTS IN WATER BODIES IN VOLCANIC ZONE OF THE SUD LIPEZ PROVINCE, BOLIVIAN ALTIPLANO(Geological Society of America, 2023) Maria Chambi Tapia; Israel Quino; Mauricio Ormachea; Oswaldo Eduardo Ramos Ramos; Prosun BhattacharyaItem type: Item , HYDROGEOCHEMICAL CHARACTERIZATION AND QUALITY ASSESSMENT OF GROUNDWATER AND SURFACE WATER WITHIN THE SAJAMA NATIONAL PARK AND ITS AREAS OF INFLUENCE, BOLIVIAN ALTIPLANO(Geological Society of America, 2024) Maria Chambi Tapia; Israel Quino; Israel Quino; Mauricio Ormachea; Mauricio Ormachea; Oswaldo Eduardo Ramos Ramos; Oswaldo Eduardo Ramos Ramos; Prosun Bhattacharya; Prosun BhattacharyaItem type: Item , Hydrogeochemical contrasts in the shallow aquifer systems of the Lower Katari Basin and Southern Poopó Basin, Bolivian Altiplano(Elsevier BV, 2020) Israel Quino Lima; Mauricio Ormachea; Oswaldo Eduardo Ramos Ramos; Jorge Quintanilla Aguirre; Jyoti Prakash Maity; Ahmad Arslan; Prosun BhattacharyaDrinking water sources in the southeastern part of Lake Titicaca (Lower Katari Basin: LKB) and the southern part of Lake Poopó (Southern Poopó Basin: SPB) have high concentrations of arsenic (As), >10 μg/L compared to the WHO and NB-512 guideline value. These regions belong to the Bolivian Altiplano and are characterized by a semiarid climate, slow hydrological flow, with geological formations of volcanic origin, in addition to brines and other mineral deposits. The present study is focused on comparing the geochemical processes of As in relation to the sources and mobilization in groundwater (GW) in LKB and SPB. Groundwater (GW), surface water (SW) and sediment samples were collected from both basins. The As (LKB: 0.8–288 μg/L and SPB: 2.6–207 μg/L), boron (B) (LKB: 96–2473 μg/L and SPB: 507–4359 μg/L), manganese (Mn) (LKB: 0.6–7259 μg/L) and salinity (LKB: 125–11740 μS/cm) were found to be higher than the WHO guideline values, which is a serious concern about the GW quality for human consumption. The dissolution and exchange of bases are the processes that govern the mineralization of GW. Load of solids and liquids of anthropogenic origin in surface water (LKB) represents an environmental problem for communities on river banks. The spatial distribution of As was attributed to the geology of both the basins and the heterogeneously distributed evaporites in the sediments. The highest As concentrations are found in alluvial sediments of the northern region of LKB and “PACK belt” (an approximately 25 km long belt stretching along the southern shores of the Lake Poopó, between the villages of Pampa Aullagas and Condo K) in SPB. Sequential extraction of sediment and mineral saturation indices indicate that iron (Fe) and aluminum (Al) oxides as well as hydroxides are the most predominant mineral phases as potential sorbents of As.Item type: Item , Sources and behavior of arsenic and trace elements in groundwater and surface water in the Poopó Lake Basin, Bolivian Altiplano(Springer Science+Business Media, 2011) Oswaldo Eduardo Ramos Ramos; Luis Fernando Cáceres; Mauricio Ormachea; Prosun Bhattacharya; Israel Quino; Jorge Quintanilla; Ondra Šráček; Roger Thunvik; Jochen Bundschuh; M.E. GarcíaItem type: Item , Spatial dependency of arsenic, antimony, boron and other trace elements in the shallow groundwater systems of the Lower Katari Basin, Bolivian Altiplano(Elsevier BV, 2020) Israel Quino Lima; Oswaldo Ramos Ramos; Mauricio Ormachea; Jorge Quintanilla Aguirre; Céline Duwig; Jyoti Prakash Maity; Ondra Šráček; Prosun BhattacharyaItem type: Item , SPATIAL VARIABILITY AND HYDROGEOCHEMISTRY OF GEOGENIC: ARSENIC, BORON AND LITHIUM IN THE HYDROLOGICAL SYSTEM OF THE LAUCA RIVER BASIN IN BOLIVIA(Geological Society of America, 2024) Lizangela Huallpara Lliully; Mauricio Ormachea; Mauricio Ormachea; Oswaldo Eduardo Ramos Ramos; Oswaldo Eduardo Ramos Ramos; Prosun Bhattacharya; Prosun Bhattacharya; Prosun BhattacharyaItem type: Item , Spatial variability of trace elements with Moran’s I Analysis for shallow groundwater quality in the Lower Katari Basin, Bolivian Altiplano(2019) Israel Quino; Oswaldo Eduardo Ramos Ramos; Mauricio Ormachea; Javier Quintanilla; Prosun BhattacharyaThe southeastern part of the Titicaca Lake near the Cohana Bay in the Bolivian Altiplano, has environmental problems caused mainly by urban and industrial wastes upstream of the Katari Basin and by natural geological conditions. This environmental condition has generated an increase in the concentrations of some trace elements in the groundwater. The Moran’s I statistic was used with LISA (Local Indicators of Spatial Association) method to know the spatial autocorrelation and the spatial variability of As, Sb, B, Al, Mn and F. Arsenic and antimony are the main pollutants due to natural geological conditions and boron due to the anthropogenic activities. Almost half of all the shallow groundwater samples exceeded the WHO and NB-512 guideline values mainly for antimony, boron and arsenic, whereby the spatial distribution of these trace elements in groundwater raises a significant concern about drinking water quality.Item type: Item , The solid-state partitioning, distribution, and mineralogical associations of arsenic and antimony: Integrated findings from the Altiplano Puna, South America and international comparisons(Elsevier BV, 2022) Joseline Tapia; Stéphane Audry; Jésica Murray; Prosun Bhattacharya; Mauricio Ormachea; Israel Quino-Lima; D. Kirk NordstromItem type: Item , The Unique Altiplano-Puna Plateau: Environmental Perspectives(Elsevier BV, 2022) Joseline Tapia; Jésica Murray; Mauricio Ormachea; Prosun Bhattacharya