Groundwater chemistry and occurrence of arsenic in the Meghna floodplain aquifer, southeastern Bangladesh

Abstract Dissolved major ions and important heavy metals including total arsenic and iron were measured in groundwater from shallow (25–33 m) and deep (191–318 m) tube-wells in southeastern Bangladesh. These analyses are intended to help describe geochemical processes active in the aquifers and the...
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Autor*in:	Zahid, Anwar [verfasserIn] Hassan, M. Qumrul Balke, K.-D. Flegr, Matthias Clark, David W.

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2007

Schlagwörter:	Salinization Iron-oxyhydroxides Adsorption Paddy soil Arsenic mobility

Anmerkung:	© Springer-Verlag 2007

Übergeordnetes Werk:	Enthalten in: Environmental geology - Berlin : Springer, 1975, 54(2007), 6 vom: 13. Juli, Seite 1247-1260
Übergeordnetes Werk:	volume:54 ; year:2007 ; number:6 ; day:13 ; month:07 ; pages:1247-1260

Links:	Volltext

DOI / URN:	10.1007/s00254-007-0907-3

Katalog-ID:	SPR003058816

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allfields	10.1007/s00254-007-0907-3 doi (DE-627)SPR003058816 (SPR)s00254-007-0907-3-e DE-627 ger DE-627 rakwb eng Zahid, Anwar verfasserin aut Groundwater chemistry and occurrence of arsenic in the Meghna floodplain aquifer, southeastern Bangladesh 2007 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Springer-Verlag 2007 Abstract Dissolved major ions and important heavy metals including total arsenic and iron were measured in groundwater from shallow (25–33 m) and deep (191–318 m) tube-wells in southeastern Bangladesh. These analyses are intended to help describe geochemical processes active in the aquifers and the source and release mechanism of arsenic in sediments for the Meghna Floodplain aquifer. The elevated $ Cl^{−} $ and higher proportions of $ Na^{+} $ relative to $ Ca^{2+} $, $ Mg^{2+} $, and $ K^{+} $ in groundwater suggest the influence by a source of $ Na^{+} $ and $ Cl^{−} $. Use of chemical fertilizers may cause higher concentrations of NH4+ and PO43− in shallow well samples. In general, most ions are positively correlated with $ Cl^{−} $, with $ Na^{+} $ showing an especially strong correlation with $ Cl^{−} $, indicating that these ions are derived from the same source of saline waters. The relationship between $ Cl^{−} $/HCO3− ratios and $ Cl^{−} $ also shows mixing of fresh groundwater and seawater. Concentrations of dissolved HCO3− reflect the degree of water–rock interaction in groundwater systems and integrated microbial degradation of organic matter. Mn and Fe-oxyhydroxides are prominent in the clayey subsurface sediment and well known to be strong adsorbents of heavy metals including arsenic. All five shallow well samples had high arsenic concentration that exceeded WHO recommended limit for drinking water. Very low concentrations of SO42− and NO3− and high concentrations of dissolved Fe and PO43− and NH4+ ions support the reducing condition of subsurface aquifer. Arsenic concentrations demonstrate negative co-relation with the concentrations of SO42− and NO3− but correlate weakly with Mo, Fe concentrations and positively with those of P, PO43− and NH4+ ions. Salinization (dpeaa)DE-He213 Iron-oxyhydroxides (dpeaa)DE-He213 Adsorption (dpeaa)DE-He213 Paddy soil (dpeaa)DE-He213 Arsenic mobility (dpeaa)DE-He213 Hassan, M. Qumrul aut Balke, K.-D. aut Flegr, Matthias aut Clark, David W. aut Enthalten in Environmental geology Berlin : Springer, 1975 54(2007), 6 vom: 13. Juli, Seite 1247-1260 (DE-627)253722586 (DE-600)1459034-7 1432-0495 nnns volume:54 year:2007 number:6 day:13 month:07 pages:1247-1260 https://dx.doi.org/10.1007/s00254-007-0907-3 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_20 GBV_ILN_24 GBV_ILN_31 GBV_ILN_40 GBV_ILN_63 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_110 GBV_ILN_120 GBV_ILN_150 GBV_ILN_151 GBV_ILN_161 GBV_ILN_267 GBV_ILN_285 GBV_ILN_293 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2018 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2055 GBV_ILN_2059 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2106 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4338 AR 54 2007 6 13 07 1247-1260
spelling	10.1007/s00254-007-0907-3 doi (DE-627)SPR003058816 (SPR)s00254-007-0907-3-e DE-627 ger DE-627 rakwb eng Zahid, Anwar verfasserin aut Groundwater chemistry and occurrence of arsenic in the Meghna floodplain aquifer, southeastern Bangladesh 2007 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Springer-Verlag 2007 Abstract Dissolved major ions and important heavy metals including total arsenic and iron were measured in groundwater from shallow (25–33 m) and deep (191–318 m) tube-wells in southeastern Bangladesh. These analyses are intended to help describe geochemical processes active in the aquifers and the source and release mechanism of arsenic in sediments for the Meghna Floodplain aquifer. The elevated $ Cl^{−} $ and higher proportions of $ Na^{+} $ relative to $ Ca^{2+} $, $ Mg^{2+} $, and $ K^{+} $ in groundwater suggest the influence by a source of $ Na^{+} $ and $ Cl^{−} $. Use of chemical fertilizers may cause higher concentrations of NH4+ and PO43− in shallow well samples. In general, most ions are positively correlated with $ Cl^{−} $, with $ Na^{+} $ showing an especially strong correlation with $ Cl^{−} $, indicating that these ions are derived from the same source of saline waters. The relationship between $ Cl^{−} $/HCO3− ratios and $ Cl^{−} $ also shows mixing of fresh groundwater and seawater. Concentrations of dissolved HCO3− reflect the degree of water–rock interaction in groundwater systems and integrated microbial degradation of organic matter. Mn and Fe-oxyhydroxides are prominent in the clayey subsurface sediment and well known to be strong adsorbents of heavy metals including arsenic. All five shallow well samples had high arsenic concentration that exceeded WHO recommended limit for drinking water. Very low concentrations of SO42− and NO3− and high concentrations of dissolved Fe and PO43− and NH4+ ions support the reducing condition of subsurface aquifer. Arsenic concentrations demonstrate negative co-relation with the concentrations of SO42− and NO3− but correlate weakly with Mo, Fe concentrations and positively with those of P, PO43− and NH4+ ions. Salinization (dpeaa)DE-He213 Iron-oxyhydroxides (dpeaa)DE-He213 Adsorption (dpeaa)DE-He213 Paddy soil (dpeaa)DE-He213 Arsenic mobility (dpeaa)DE-He213 Hassan, M. Qumrul aut Balke, K.-D. aut Flegr, Matthias aut Clark, David W. aut Enthalten in Environmental geology Berlin : Springer, 1975 54(2007), 6 vom: 13. Juli, Seite 1247-1260 (DE-627)253722586 (DE-600)1459034-7 1432-0495 nnns volume:54 year:2007 number:6 day:13 month:07 pages:1247-1260 https://dx.doi.org/10.1007/s00254-007-0907-3 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_20 GBV_ILN_24 GBV_ILN_31 GBV_ILN_40 GBV_ILN_63 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_110 GBV_ILN_120 GBV_ILN_150 GBV_ILN_151 GBV_ILN_161 GBV_ILN_267 GBV_ILN_285 GBV_ILN_293 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2018 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2055 GBV_ILN_2059 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2106 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4338 AR 54 2007 6 13 07 1247-1260
allfields_unstemmed	10.1007/s00254-007-0907-3 doi (DE-627)SPR003058816 (SPR)s00254-007-0907-3-e DE-627 ger DE-627 rakwb eng Zahid, Anwar verfasserin aut Groundwater chemistry and occurrence of arsenic in the Meghna floodplain aquifer, southeastern Bangladesh 2007 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Springer-Verlag 2007 Abstract Dissolved major ions and important heavy metals including total arsenic and iron were measured in groundwater from shallow (25–33 m) and deep (191–318 m) tube-wells in southeastern Bangladesh. These analyses are intended to help describe geochemical processes active in the aquifers and the source and release mechanism of arsenic in sediments for the Meghna Floodplain aquifer. The elevated $ Cl^{−} $ and higher proportions of $ Na^{+} $ relative to $ Ca^{2+} $, $ Mg^{2+} $, and $ K^{+} $ in groundwater suggest the influence by a source of $ Na^{+} $ and $ Cl^{−} $. Use of chemical fertilizers may cause higher concentrations of NH4+ and PO43− in shallow well samples. In general, most ions are positively correlated with $ Cl^{−} $, with $ Na^{+} $ showing an especially strong correlation with $ Cl^{−} $, indicating that these ions are derived from the same source of saline waters. The relationship between $ Cl^{−} $/HCO3− ratios and $ Cl^{−} $ also shows mixing of fresh groundwater and seawater. Concentrations of dissolved HCO3− reflect the degree of water–rock interaction in groundwater systems and integrated microbial degradation of organic matter. Mn and Fe-oxyhydroxides are prominent in the clayey subsurface sediment and well known to be strong adsorbents of heavy metals including arsenic. All five shallow well samples had high arsenic concentration that exceeded WHO recommended limit for drinking water. Very low concentrations of SO42− and NO3− and high concentrations of dissolved Fe and PO43− and NH4+ ions support the reducing condition of subsurface aquifer. Arsenic concentrations demonstrate negative co-relation with the concentrations of SO42− and NO3− but correlate weakly with Mo, Fe concentrations and positively with those of P, PO43− and NH4+ ions. Salinization (dpeaa)DE-He213 Iron-oxyhydroxides (dpeaa)DE-He213 Adsorption (dpeaa)DE-He213 Paddy soil (dpeaa)DE-He213 Arsenic mobility (dpeaa)DE-He213 Hassan, M. Qumrul aut Balke, K.-D. aut Flegr, Matthias aut Clark, David W. aut Enthalten in Environmental geology Berlin : Springer, 1975 54(2007), 6 vom: 13. Juli, Seite 1247-1260 (DE-627)253722586 (DE-600)1459034-7 1432-0495 nnns volume:54 year:2007 number:6 day:13 month:07 pages:1247-1260 https://dx.doi.org/10.1007/s00254-007-0907-3 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_20 GBV_ILN_24 GBV_ILN_31 GBV_ILN_40 GBV_ILN_63 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_110 GBV_ILN_120 GBV_ILN_150 GBV_ILN_151 GBV_ILN_161 GBV_ILN_267 GBV_ILN_285 GBV_ILN_293 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2018 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2055 GBV_ILN_2059 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2106 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4338 AR 54 2007 6 13 07 1247-1260
allfieldsGer	10.1007/s00254-007-0907-3 doi (DE-627)SPR003058816 (SPR)s00254-007-0907-3-e DE-627 ger DE-627 rakwb eng Zahid, Anwar verfasserin aut Groundwater chemistry and occurrence of arsenic in the Meghna floodplain aquifer, southeastern Bangladesh 2007 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Springer-Verlag 2007 Abstract Dissolved major ions and important heavy metals including total arsenic and iron were measured in groundwater from shallow (25–33 m) and deep (191–318 m) tube-wells in southeastern Bangladesh. These analyses are intended to help describe geochemical processes active in the aquifers and the source and release mechanism of arsenic in sediments for the Meghna Floodplain aquifer. The elevated $ Cl^{−} $ and higher proportions of $ Na^{+} $ relative to $ Ca^{2+} $, $ Mg^{2+} $, and $ K^{+} $ in groundwater suggest the influence by a source of $ Na^{+} $ and $ Cl^{−} $. Use of chemical fertilizers may cause higher concentrations of NH4+ and PO43− in shallow well samples. In general, most ions are positively correlated with $ Cl^{−} $, with $ Na^{+} $ showing an especially strong correlation with $ Cl^{−} $, indicating that these ions are derived from the same source of saline waters. The relationship between $ Cl^{−} $/HCO3− ratios and $ Cl^{−} $ also shows mixing of fresh groundwater and seawater. Concentrations of dissolved HCO3− reflect the degree of water–rock interaction in groundwater systems and integrated microbial degradation of organic matter. Mn and Fe-oxyhydroxides are prominent in the clayey subsurface sediment and well known to be strong adsorbents of heavy metals including arsenic. All five shallow well samples had high arsenic concentration that exceeded WHO recommended limit for drinking water. Very low concentrations of SO42− and NO3− and high concentrations of dissolved Fe and PO43− and NH4+ ions support the reducing condition of subsurface aquifer. Arsenic concentrations demonstrate negative co-relation with the concentrations of SO42− and NO3− but correlate weakly with Mo, Fe concentrations and positively with those of P, PO43− and NH4+ ions. Salinization (dpeaa)DE-He213 Iron-oxyhydroxides (dpeaa)DE-He213 Adsorption (dpeaa)DE-He213 Paddy soil (dpeaa)DE-He213 Arsenic mobility (dpeaa)DE-He213 Hassan, M. Qumrul aut Balke, K.-D. aut Flegr, Matthias aut Clark, David W. aut Enthalten in Environmental geology Berlin : Springer, 1975 54(2007), 6 vom: 13. Juli, Seite 1247-1260 (DE-627)253722586 (DE-600)1459034-7 1432-0495 nnns volume:54 year:2007 number:6 day:13 month:07 pages:1247-1260 https://dx.doi.org/10.1007/s00254-007-0907-3 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_20 GBV_ILN_24 GBV_ILN_31 GBV_ILN_40 GBV_ILN_63 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_110 GBV_ILN_120 GBV_ILN_150 GBV_ILN_151 GBV_ILN_161 GBV_ILN_267 GBV_ILN_285 GBV_ILN_293 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2018 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2055 GBV_ILN_2059 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2106 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4338 AR 54 2007 6 13 07 1247-1260
allfieldsSound	10.1007/s00254-007-0907-3 doi (DE-627)SPR003058816 (SPR)s00254-007-0907-3-e DE-627 ger DE-627 rakwb eng Zahid, Anwar verfasserin aut Groundwater chemistry and occurrence of arsenic in the Meghna floodplain aquifer, southeastern Bangladesh 2007 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Springer-Verlag 2007 Abstract Dissolved major ions and important heavy metals including total arsenic and iron were measured in groundwater from shallow (25–33 m) and deep (191–318 m) tube-wells in southeastern Bangladesh. These analyses are intended to help describe geochemical processes active in the aquifers and the source and release mechanism of arsenic in sediments for the Meghna Floodplain aquifer. The elevated $ Cl^{−} $ and higher proportions of $ Na^{+} $ relative to $ Ca^{2+} $, $ Mg^{2+} $, and $ K^{+} $ in groundwater suggest the influence by a source of $ Na^{+} $ and $ Cl^{−} $. Use of chemical fertilizers may cause higher concentrations of NH4+ and PO43− in shallow well samples. In general, most ions are positively correlated with $ Cl^{−} $, with $ Na^{+} $ showing an especially strong correlation with $ Cl^{−} $, indicating that these ions are derived from the same source of saline waters. The relationship between $ Cl^{−} $/HCO3− ratios and $ Cl^{−} $ also shows mixing of fresh groundwater and seawater. Concentrations of dissolved HCO3− reflect the degree of water–rock interaction in groundwater systems and integrated microbial degradation of organic matter. Mn and Fe-oxyhydroxides are prominent in the clayey subsurface sediment and well known to be strong adsorbents of heavy metals including arsenic. All five shallow well samples had high arsenic concentration that exceeded WHO recommended limit for drinking water. Very low concentrations of SO42− and NO3− and high concentrations of dissolved Fe and PO43− and NH4+ ions support the reducing condition of subsurface aquifer. Arsenic concentrations demonstrate negative co-relation with the concentrations of SO42− and NO3− but correlate weakly with Mo, Fe concentrations and positively with those of P, PO43− and NH4+ ions. Salinization (dpeaa)DE-He213 Iron-oxyhydroxides (dpeaa)DE-He213 Adsorption (dpeaa)DE-He213 Paddy soil (dpeaa)DE-He213 Arsenic mobility (dpeaa)DE-He213 Hassan, M. Qumrul aut Balke, K.-D. aut Flegr, Matthias aut Clark, David W. aut Enthalten in Environmental geology Berlin : Springer, 1975 54(2007), 6 vom: 13. Juli, Seite 1247-1260 (DE-627)253722586 (DE-600)1459034-7 1432-0495 nnns volume:54 year:2007 number:6 day:13 month:07 pages:1247-1260 https://dx.doi.org/10.1007/s00254-007-0907-3 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_20 GBV_ILN_24 GBV_ILN_31 GBV_ILN_40 GBV_ILN_63 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_110 GBV_ILN_120 GBV_ILN_150 GBV_ILN_151 GBV_ILN_161 GBV_ILN_267 GBV_ILN_285 GBV_ILN_293 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2018 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2055 GBV_ILN_2059 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2106 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4338 AR 54 2007 6 13 07 1247-1260
language	English
source	Enthalten in Environmental geology 54(2007), 6 vom: 13. Juli, Seite 1247-1260 volume:54 year:2007 number:6 day:13 month:07 pages:1247-1260
sourceStr	Enthalten in Environmental geology 54(2007), 6 vom: 13. Juli, Seite 1247-1260 volume:54 year:2007 number:6 day:13 month:07 pages:1247-1260
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	Salinization Iron-oxyhydroxides Adsorption Paddy soil Arsenic mobility
isfreeaccess_bool	false
container_title	Environmental geology
authorswithroles_txt_mv	Zahid, Anwar @@aut@@ Hassan, M. Qumrul @@aut@@ Balke, K.-D. @@aut@@ Flegr, Matthias @@aut@@ Clark, David W. @@aut@@
publishDateDaySort_date	2007-07-13T00:00:00Z
hierarchy_top_id	253722586
id	SPR003058816
language_de	englisch
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author	Zahid, Anwar
spellingShingle	Zahid, Anwar misc Salinization misc Iron-oxyhydroxides misc Adsorption misc Paddy soil misc Arsenic mobility Groundwater chemistry and occurrence of arsenic in the Meghna floodplain aquifer, southeastern Bangladesh
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topic_title	Groundwater chemistry and occurrence of arsenic in the Meghna floodplain aquifer, southeastern Bangladesh Salinization (dpeaa)DE-He213 Iron-oxyhydroxides (dpeaa)DE-He213 Adsorption (dpeaa)DE-He213 Paddy soil (dpeaa)DE-He213 Arsenic mobility (dpeaa)DE-He213
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title	Groundwater chemistry and occurrence of arsenic in the Meghna floodplain aquifer, southeastern Bangladesh
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title_full	Groundwater chemistry and occurrence of arsenic in the Meghna floodplain aquifer, southeastern Bangladesh
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author_browse	Zahid, Anwar Hassan, M. Qumrul Balke, K.-D. Flegr, Matthias Clark, David W.
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title_sort	groundwater chemistry and occurrence of arsenic in the meghna floodplain aquifer, southeastern bangladesh
title_auth	Groundwater chemistry and occurrence of arsenic in the Meghna floodplain aquifer, southeastern Bangladesh
abstract	Abstract Dissolved major ions and important heavy metals including total arsenic and iron were measured in groundwater from shallow (25–33 m) and deep (191–318 m) tube-wells in southeastern Bangladesh. These analyses are intended to help describe geochemical processes active in the aquifers and the source and release mechanism of arsenic in sediments for the Meghna Floodplain aquifer. The elevated $ Cl^{−} $ and higher proportions of $ Na^{+} $ relative to $ Ca^{2+} $, $ Mg^{2+} $, and $ K^{+} $ in groundwater suggest the influence by a source of $ Na^{+} $ and $ Cl^{−} $. Use of chemical fertilizers may cause higher concentrations of NH4+ and PO43− in shallow well samples. In general, most ions are positively correlated with $ Cl^{−} $, with $ Na^{+} $ showing an especially strong correlation with $ Cl^{−} $, indicating that these ions are derived from the same source of saline waters. The relationship between $ Cl^{−} $/HCO3− ratios and $ Cl^{−} $ also shows mixing of fresh groundwater and seawater. Concentrations of dissolved HCO3− reflect the degree of water–rock interaction in groundwater systems and integrated microbial degradation of organic matter. Mn and Fe-oxyhydroxides are prominent in the clayey subsurface sediment and well known to be strong adsorbents of heavy metals including arsenic. All five shallow well samples had high arsenic concentration that exceeded WHO recommended limit for drinking water. Very low concentrations of SO42− and NO3− and high concentrations of dissolved Fe and PO43− and NH4+ ions support the reducing condition of subsurface aquifer. Arsenic concentrations demonstrate negative co-relation with the concentrations of SO42− and NO3− but correlate weakly with Mo, Fe concentrations and positively with those of P, PO43− and NH4+ ions. © Springer-Verlag 2007
abstractGer	Abstract Dissolved major ions and important heavy metals including total arsenic and iron were measured in groundwater from shallow (25–33 m) and deep (191–318 m) tube-wells in southeastern Bangladesh. These analyses are intended to help describe geochemical processes active in the aquifers and the source and release mechanism of arsenic in sediments for the Meghna Floodplain aquifer. The elevated $ Cl^{−} $ and higher proportions of $ Na^{+} $ relative to $ Ca^{2+} $, $ Mg^{2+} $, and $ K^{+} $ in groundwater suggest the influence by a source of $ Na^{+} $ and $ Cl^{−} $. Use of chemical fertilizers may cause higher concentrations of NH4+ and PO43− in shallow well samples. In general, most ions are positively correlated with $ Cl^{−} $, with $ Na^{+} $ showing an especially strong correlation with $ Cl^{−} $, indicating that these ions are derived from the same source of saline waters. The relationship between $ Cl^{−} $/HCO3− ratios and $ Cl^{−} $ also shows mixing of fresh groundwater and seawater. Concentrations of dissolved HCO3− reflect the degree of water–rock interaction in groundwater systems and integrated microbial degradation of organic matter. Mn and Fe-oxyhydroxides are prominent in the clayey subsurface sediment and well known to be strong adsorbents of heavy metals including arsenic. All five shallow well samples had high arsenic concentration that exceeded WHO recommended limit for drinking water. Very low concentrations of SO42− and NO3− and high concentrations of dissolved Fe and PO43− and NH4+ ions support the reducing condition of subsurface aquifer. Arsenic concentrations demonstrate negative co-relation with the concentrations of SO42− and NO3− but correlate weakly with Mo, Fe concentrations and positively with those of P, PO43− and NH4+ ions. © Springer-Verlag 2007
abstract_unstemmed	Abstract Dissolved major ions and important heavy metals including total arsenic and iron were measured in groundwater from shallow (25–33 m) and deep (191–318 m) tube-wells in southeastern Bangladesh. These analyses are intended to help describe geochemical processes active in the aquifers and the source and release mechanism of arsenic in sediments for the Meghna Floodplain aquifer. The elevated $ Cl^{−} $ and higher proportions of $ Na^{+} $ relative to $ Ca^{2+} $, $ Mg^{2+} $, and $ K^{+} $ in groundwater suggest the influence by a source of $ Na^{+} $ and $ Cl^{−} $. Use of chemical fertilizers may cause higher concentrations of NH4+ and PO43− in shallow well samples. In general, most ions are positively correlated with $ Cl^{−} $, with $ Na^{+} $ showing an especially strong correlation with $ Cl^{−} $, indicating that these ions are derived from the same source of saline waters. The relationship between $ Cl^{−} $/HCO3− ratios and $ Cl^{−} $ also shows mixing of fresh groundwater and seawater. Concentrations of dissolved HCO3− reflect the degree of water–rock interaction in groundwater systems and integrated microbial degradation of organic matter. Mn and Fe-oxyhydroxides are prominent in the clayey subsurface sediment and well known to be strong adsorbents of heavy metals including arsenic. All five shallow well samples had high arsenic concentration that exceeded WHO recommended limit for drinking water. Very low concentrations of SO42− and NO3− and high concentrations of dissolved Fe and PO43− and NH4+ ions support the reducing condition of subsurface aquifer. Arsenic concentrations demonstrate negative co-relation with the concentrations of SO42− and NO3− but correlate weakly with Mo, Fe concentrations and positively with those of P, PO43− and NH4+ ions. © Springer-Verlag 2007
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title_short	Groundwater chemistry and occurrence of arsenic in the Meghna floodplain aquifer, southeastern Bangladesh
url	https://dx.doi.org/10.1007/s00254-007-0907-3
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Mn and Fe-oxyhydroxides are prominent in the clayey subsurface sediment and well known to be strong adsorbents of heavy metals including arsenic. All five shallow well samples had high arsenic concentration that exceeded WHO recommended limit for drinking water. Very low concentrations of SO42− and NO3− and high concentrations of dissolved Fe and PO43− and NH4+ ions support the reducing condition of subsurface aquifer. 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Groundwater chemistry and occurrence of arsenic in the Meghna floodplain aquifer, southeastern Bangladesh

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