Alexander van Geen
Geochemistry Division, Palisades, NY
Activity
2020
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A CHANGING WORLD CAN ALSO INCREASE ACCESS TO SAFE DRINKING WATER: THE NOLKUP ANDROID APP FOR BANGLADESH
T192 Water, Health and Wealth in a Changing WorldThursday, 29 October 202010:00 AM - 12:00 PMMeeting Rooms
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CHARACTERIZING THE LONG-TERM VULNERABILITY OF INTERMEDIATE AND DEEP AQUIFERS TO ARSENIC CONTAMINATION IN BANGLADESH UNDER THE INFLUENCE OF URBAN PUMPING
T192 Water, Health and Wealth in a Changing WorldThursday, 29 October 202010:00 AM - 12:00 PMMeeting Rooms
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ARE PLEISTOCENE AQUIFERS IN BANGLADESH SEALED OR BEING RECHARGED? A COMBINED ANALYSIS OF RADIOCARBON SIGNATURES OF DIC, DOC, AND RNA WITH GEOCHEMICAL DATA
T148 Arsenic, Fluoride, Manganese, and Radiogenic Contaminants in Groundwater Systems—Scientific Knowledge, Public Health Concerns, and Removal Technology IIWednesday, 28 October 20201:30 PM - 5:30 PMMeeting Rooms
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PROBING POTENTIAL LINKS BETWEEN GROUNDWATER USE AND GEOCHEMICAL PROCESSES THAT AFFECT WATER QUALITY USING IRON K-EDGE X-RAY ABSORPTION SPECTROSCOPY
T151 Environmental Geochemistry and Health IIWednesday, 28 October 20201:30 PM - 5:30 PMMeeting Rooms
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COMBINED RADIOCARBON AND SEQUENCING ANALYSES TO UNDERSTAND CARBON SOURCES IN GROUNDWATER SYSTEMS
T89 Applications for DNA Sequencing and Microbial Analysis in Hydrogeology and Environmental GeosciencesTuesday, 27 October 20201:30 PM - 5:30 PMMeeting Rooms
2018
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FURTHER INVESTIGATION OF THE RELATIONSHIP BETWEEN POPULATION DENSITY, UNSEWERED WASTE INPUTS AND AS IN BANGLADESH GROUNDWATER
T281 Arsenic, Manganese, Chromium, and Other Geogenic Contaminants, Including Radionuclides in Hydrological Systems—Source, Biogeochemical Cycling, Toxicity, and Removal IIWednesday, 7 November 20181:30 PM - 5:30 PMRoom 133
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RADIOCARBON ANALYSIS OF MICROBIAL RNA TO DETERMINE CARBON SOURCES IN ARSENIC CONTAMINATED PLEISTOCENE AQUIFERS IN BANGLADESH
T231 Arsenic, Manganese, Chromium, and Other Geogenic Contaminants, Including Radionuclides in Hydrological Systems—Source, Biogeochemical Cycling, Toxicity, and Removal IWednesday, 7 November 20188:00 AM - 12:00 PMRoom 133
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TIME SERIES ANALYSIS OF ARSENIC CONCENTRATIONS IN 24 MONITORING WELLS IN ARAIHAZAR, BANGLADESH
T281 Arsenic, Manganese, Chromium, and Other Geogenic Contaminants, Including Radionuclides in Hydrological Systems—Source, Biogeochemical Cycling, Toxicity, and Removal IIWednesday, 7 November 20181:30 PM - 5:30 PMRoom 133
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HOW EARTH PROCESSES CAN POISON MILLIONS BUT ALSO PROVIDE A SOLUTION: THE CASE OF WELL-WATER ARSENIC IN SOUTH ASIA
T154 From Local to Global—Why Geology Matters for Human HealthTuesday, 6 November 20188:00 AM - 12:00 PMSagamore Ballroom 6
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SCREENING HOMES FOR SOURCES OF LEAD EXPOSURE CONDUCTED BY HIGH SCHOOL STUDENTS IN NEW YORK AND NEW JERSEY: COMBINING CITIZEN SCIENCE WITH SCIENCE EDUCATION TO STUDY URBAN GEOCHEMISTRY
T149 Urban GeochemistryTuesday, 6 November 20188:00 AM - 12:00 PMRoom 135
2016
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DEVELOPING AND DEPLOYING A FIELD TEST KIT FOR BIOACCESSIBLE LEAD IN SOILS
T151 Interdisciplinary Approaches to Assessing Environmental Impact of Mining (Posters)Monday, 26 September 20169:00 AM - 6:30 PMExhibit Hall E/F
2015
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TRANSIENT ARSENIC CONCENTRATIONS IN A SHALLOW AQUIFER OF BANGLADESH INDUCED BY IRRIGATION PUMPING
T334 Arsenic: Source to Sustainability IIWednesday, 4 November 20151:30 PM - 5:30 PMRoom 337
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GROUNDWATER CHEMISTRY OF DEEP (>300 FEET) HIGH-AS AQUIFERS ACROSS THE INDIA-BANGLADESH BORDER
T334 Arsenic: Source to Sustainability IIWednesday, 4 November 20151:30 PM - 5:30 PMRoom 337
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REPLACEMENT OF ARSENIC-CONTAMINATED SOIL FOR IMPROVED RICE YIELDS IN BANGLADESH
T334 Arsenic: Source to Sustainability IIWednesday, 4 November 20151:30 PM - 5:30 PMRoom 337
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ORIGIN OF ARSENIC RICH, YOUNG GROUNDWATER IN DEEP TUBEWELLS IN THE CENTRAL SOUTHWESTERN BENGAL BASIN
T334 Arsenic: Source to Sustainability IIWednesday, 4 November 20151:30 PM - 5:30 PMRoom 337
2014
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EFFECT OF AQUIFER HETEROGENEITY ON THE SUSTAINABILITY OF DEEP GROUNDWATER RESOURCES IN THE BENGAL DELTA NEAR A MEGA-CITY PUMPING CENTER
T337 Groundwater and Surface-Water Arsenic: From Source to Sink IIWednesday, 22 October 20141:00 PM - 5:00 PM110
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IMPACT OF OVER-PUMPING FROM DEEP AQUIFER IN DHAKA CITY ON THE SAFE WATER SUPPLY FOR SURROUNDING RURAL POPULATION
T252 Water Contamination and Treatment in Developing CountriesTuesday, 21 October 20141:00 PM - 5:00 PM204
2013
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DEEP PUMPING IN DHAKA FAVORS DISTAL INTRUSION OF MEGHNA RIVER WATER INTO DRINKING WATER AQUIFERS
T169 Environmental Arsenic: The Nexus of Natural Occurrences and Human HealthMonday, 28 October 20131:00 PM - 5:00 PMRoom 205
2012
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MINERALOGICAL AND GEOCHEMICAL STUDY OF AQUIFER SEDIMENTS OF THE BENGAL BASIN, BANGLADESH
T99 Arsenic: Fate and Transport in Natural Waters and Aquifers from Basin to Pore-Space Scale (Posters)Monday, 5 November 20129:00 AM - 6:00 PMHall B
2011
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THE VALUE OF FIELD OCCURRENCE STUDIES OF FECAL CONTAMINATION IN AQUIFERS AND WELLS
T279 Pathogens and Fecal Indicators in Soil, Groundwater, and Surface WaterWednesday, 12 October 20111:30 PM - 5:30 PMRoom M100DE
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THE SURFACE AND SUBSURFACE CONTROLS ON GROUNDWATER ARSENIC: CAN SURFACE MORPHOLOGY ALWAYS HELP IN DETERMINING VULNERABILITY TO SHALLOW GROUNDWATER ARSENIC?
T283 Advances in Characterizing Sources and Release of Naturally Occurring Trace Elements to Aquatic Systems and GroundwaterWednesday, 12 October 20111:30 PM - 5:30 PMRoom M100FG
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TRANSPORT OF FECAL BACTERIA FROM PONDS TO AQUIFERS IN RURAL BANGLADESH: THE ROLE OF ADJACENT SEDIMENT GRAIN SIZE
32 Plenary: Geological Research for Our Health (2011 - Year of Science in Health Research)Tuesday, 6 September 20113:30 PM - 5:50 PMA 014
2009
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ARSENIC ADSORPTION ONTO AQUIFER SEDIMENTS: IMPLICATION FOR REMEDIATION AT THE VINELAND SUPERFUND SITE, NEW JERSEY
4 From Road Salt to Arsenic and Other Environmental Contaminants in Hydrologic Systems ISunday, 22 March 20098:10 AM - 12:00 PM
2008
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Local Parameters Influencing Groundwater Arsenic Concentration in Shallow Aquifers in Bangladesh
T297 Groundwater Arsenic: A Global Environmental Health Problem and Sustainable Mitigation IWednesday, 8 October 20088:00 AM - 12:00 PM
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The Hydrology of Shallow Aquifers in Araihazar, Bangladesh: A Potential Link to Temporal Variability in Dissolved Arsenic Concentrations
T297 Groundwater Arsenic: A Global Environmental Health Problem and Sustainable Mitigation IWednesday, 8 October 20088:00 AM - 12:00 PM
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14C Analysis of Microbial DNA from Bangladesh Groundwater: Implications for Deep Aquifer Sustainability
T327 Groundwater Arsenic: A Global Environmental Health Problem and Sustainable Mitigation IIWednesday, 8 October 20081:30 PM - 5:30 PM
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Sediment Age and Arsenic Availability: Leaching Experiments on Aquifer Sands and Implications for Arsenic Mobilization
T327 Groundwater Arsenic: A Global Environmental Health Problem and Sustainable Mitigation IIWednesday, 8 October 20081:30 PM - 5:30 PM
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Arsenic in Shallow Groundwater Adsorbed by Deeper Aquifer Sediments of Araihazar, Bangladesh
T297 Groundwater Arsenic: A Global Environmental Health Problem and Sustainable Mitigation IWednesday, 8 October 20088:00 AM - 12:00 PM
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Worldwide Diversity and Occurrence of Arsenite Transporter acr3(2) Suggests An Important and Overlooked Pathway
T327 Groundwater Arsenic: A Global Environmental Health Problem and Sustainable Mitigation IIWednesday, 8 October 20081:30 PM - 5:30 PM
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Microbial Mineral Weathering for Nutrient Acquisition Releases Arsenic
T272 Sources, Transport, Fate, and Toxicology of Trace Elements in the Environment IITuesday, 7 October 20081:30 PM - 5:30 PM
2006
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CHARACTERIZATION OF SHALLOW AND DEEP AQUIFERS IN BANGLADESH AND IMPLICATIONS FOR GROUNDWATER MANAGEMENT
T192 Geochemical and Hydrologic Linkages Between Shallow and Deep GroundwatersWednesday, 25 October 20068:00 AM - 12:00 PM
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MONITORING OF ARSENIC CONCENTRATIONS IN GROUNDWATER PUMPED FROM 50 COMMUNITY WELLS TAPPING PLEISTOCENE AQUIFERS IN ARAIHAZAR, BANGLADESH
T67 Distribution of Arsenic and Related Metalloids in Surface and Ground Waters: Controls and Challenges IMonday, 23 October 20068:00 AM - 12:00 PM
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ENVIRONMENTAL TRACER APPLICATIONS IN AQUIFERS IN AQUIFERS WITH ELEVATED AS CONCENTRATIONS IN BANGLADESH
T103 Ground Water Age Dating: Current Issues and ApplicationsMonday, 23 October 20061:30 PM - 5:30 PM
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FLUVIO-DELTAIC PROCESSES AND GEOMORPHIC DEVELOPMENT AT THE SCALE OF 100 TO 1000M: THEIR IMPORTANCE IN GOVERNING THE HETEROGENEITY OF GROUNDWATER ARSENIC IN ARAIHAZAR, BANGLADESH
T67 Distribution of Arsenic and Related Metalloids in Surface and Ground Waters: Controls and Challenges IMonday, 23 October 20068:00 AM - 12:00 PM
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LINKING BACTERIAL ACTIVITY AND DIVERSITY IN THE SHALLOW AQUIFERS OF BANGLADESH
T7 The Use of Molecular Techniques to Assess Microbial Community Structure and Function in Aquifer SystemsSunday, 22 October 20068:00 AM - 12:00 PM
2004
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SOLAR INFLUENCE ON THE SUBTROPICAL EASTERN PACIFIC OXYGEN MINIMUM ZONE DURING THE HOLOCENE
T144 Records of Late Quaternary Climatic Change From the Americas: Interhemispheric Synchroneity or NotTuesday, 9 November 20048:00 AM - 12:00 PM
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A COMPARISON OF SF6 AND 3H/3HE DERIVED GROUNDWATER AGES IN ARAIHAZAR, BANGLADESH
T136 Innovative Tracer Applications in Hydrogeology: New Techniques, Design and Interpretation Methods, and Case Studies ITuesday, 9 November 20048:00 AM - 12:00 PM
2003
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LOW LATITUDE CONTROL OF MARINE PRODUCTIVITY OFF THE WESTERN MARGIN OF NORTH AMERICAN DURING THE LAST 52 KA?
T214 Interhemispheric Records of Paleoclimate Change: Low Latitude Influences on the High Latitudes, or the Other Way Around, in Pole-Equator-Pole SynthesesWednesday, 5 November 20038:00 AM - 12:00 PM
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MID-HOLOCENE CLIMATE RECONSTRUCTION IN THE SOLEDAD BASIN USING PLANKTIC FORAM ASSEMBLAGES
T89 Sigma Gamma Epsilon Student Research (Posters)Monday, 3 November 20038:00 AM - 12:00 PM
2002
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ARSENIC MOBILIZATION FROM FINE PARTICLES UNDER REDUCING CONDITIONS: IMPLICATIONS FOR GROUNDWATER REMEDIATION
27 Environmental Hydrogeochemistry: Natural and Anthropogenic SolutesTuesday, 26 March 20021:20 PM - 5:00 PM
2001
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RAPID CHANGES IN ORGANIC CARBON PRESERVATION IN SEDIMENTS FROM COASTAL BAJA CALIFORNIA ARE LINKED TO GLOBAL CLIMATIC CHANGES
T95 Geochemistry of Organic-Rich Sediments from Estuaries, Continental Shelves, Basins, and Upwelling ZonesTuesday, 6 November 20011:30 PM - 5:30 PM
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BENTHIC SULFUR CYCLING IN THE SEDIMENTS FROM THE OXYGEN MINIMUM ZONE OFF BAJA CALIFORNIA
T95 Geochemistry of Organic-Rich Sediments from Estuaries, Continental Shelves, Basins, and Upwelling ZonesTuesday, 6 November 20011:30 PM - 5:30 PM
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VARIABILITY OF ARSENIC CONCENTRATIONS IN TUBE WELLS FROM ONE VILLAGE IN ARAIHAZAR UPAZILA, NARAYANGANJ DISTRICT OF BANGLADESH
T47 Natural Arsenic in Groundwater: Science, Regulation, and Health ImplicationsMonday, 5 November 20011:30 PM - 5:30 PM
Date Unknown
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ENSO DYNAMICS AND BAJA CALIFORNIA OXYGEN MINIMUM ZONE STRENGTH SINCE THE LAST GLACIATION
T125 Frontier in Understanding the Geologic Record of Climate Change: A Session in Honor of William W. Hay (Posters)
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TEMPORAL VARIABILITY IN ARSENIC CONCENTRATIONS IN SHALLOW GROUNDWATER: THE ROLE OF LOCAL HYDROLOGY
T172 Distribution of Arsenic and Related Metalloids in Surface and Ground Waters: Controls and Challenges (Posters)
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EFFECTIVE STERILIZATION TECHNIQUES FOR LONG TERM INCUBATIONS OF BANGLADESH AQUIFER SANDS
T172 Distribution of Arsenic and Related Metalloids in Surface and Ground Waters: Controls and Challenges (Posters)
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A LIMITED ROLE OF ARSENIC REDUCTION FOR ITS MOBILIZATION IN DEEP BANGLADESH AQUIFER
T172 Distribution of Arsenic and Related Metalloids in Surface and Ground Waters: Controls and Challenges (Posters)
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MOBILIZATION OF ARSENIC DURING ONE-YEAR INCUBATIONS OF GREY AQUIFER SANDS FROM ARAIHAZAR, BANGLADESH
T172 Distribution of Arsenic and Related Metalloids in Surface and Ground Waters: Controls and Challenges (Posters)
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VENTILATION INFLUENCE ON BAJA CALIFORNIA OXYGEN MINIMUM ZONE STRENGTH SINCE THE LGM: CONSTRAINTS FROM BENTHIC FORAMINIFERAL MG/CA
18 Millenial-scale Correlation Between Ice-core and Marine Sediment Records (Posters)