Arsenic mobilization in a seawater inundated acid sulfate soil

Scott Gregory Johnston; Annabelle F Keene; Edward Daniel Burton; Richard Bush; Leigh Albert Sullivan; Angus E Mcelnea; Col R Ahern; C Douglas Smith; Bernard Powell; Rosalie Katherine Hocking

doi:10.1021/es903114z

Arsenic mobilization in a seawater inundated acid sulfate soil

Scott Gregory Johnston, Annabelle F Keene, Edward Daniel Burton, Richard Bush, Leigh Albert Sullivan, Angus E Mcelnea, Col R Ahern, C Douglas Smith, Bernard Powell, Rosalie Katherine Hocking

School of Chemistry

Research output: Contribution to journal › Article › Research › peer-review

72 Citations (Scopus)

Abstract

Tidal seawater inundation of coastal acid sulfate soils can generate Fe- and SO4-reducing conditions in previously oxic-acidic sediments. This creates potential for mobilization of As during the redox transition. We explore the consequences for As by investigating the hydrology, porewater geochemistry, solid-phase speciation, and mineralogical partitioning of As across two tidal fringe toposequences. Seawater inundation induced a tidally controlled redox gradient. Maximum porewater As (400 i??g/L) occurred in the shallow (

Original language	English
Pages (from-to)	1968 - 1973
Number of pages	6
Journal	Environmental Science and Technology
Volume	44
Issue number	6
DOIs	https://doi.org/10.1021/es903114z
Publication status	Published - 2010

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10.1021/es903114z

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title = "Arsenic mobilization in a seawater inundated acid sulfate soil",

abstract = "Tidal seawater inundation of coastal acid sulfate soils can generate Fe- and SO4-reducing conditions in previously oxic-acidic sediments. This creates potential for mobilization of As during the redox transition. We explore the consequences for As by investigating the hydrology, porewater geochemistry, solid-phase speciation, and mineralogical partitioning of As across two tidal fringe toposequences. Seawater inundation induced a tidally controlled redox gradient. Maximum porewater As (400 i??g/L) occurred in the shallow (",

author = "Johnston, {Scott Gregory} and Keene, {Annabelle F} and Burton, {Edward Daniel} and Richard Bush and Sullivan, {Leigh Albert} and Mcelnea, {Angus E} and Ahern, {Col R} and Smith, {C Douglas} and Bernard Powell and Hocking, {Rosalie Katherine}",

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doi = "10.1021/es903114z",

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pages = "1968 -- 1973",

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T1 - Arsenic mobilization in a seawater inundated acid sulfate soil

AU - Johnston, Scott Gregory

AU - Keene, Annabelle F

AU - Burton, Edward Daniel

AU - Bush, Richard

AU - Sullivan, Leigh Albert

AU - Mcelnea, Angus E

AU - Ahern, Col R

AU - Smith, C Douglas

AU - Powell, Bernard

AU - Hocking, Rosalie Katherine

PY - 2010

Y1 - 2010

N2 - Tidal seawater inundation of coastal acid sulfate soils can generate Fe- and SO4-reducing conditions in previously oxic-acidic sediments. This creates potential for mobilization of As during the redox transition. We explore the consequences for As by investigating the hydrology, porewater geochemistry, solid-phase speciation, and mineralogical partitioning of As across two tidal fringe toposequences. Seawater inundation induced a tidally controlled redox gradient. Maximum porewater As (400 i??g/L) occurred in the shallow (

AB - Tidal seawater inundation of coastal acid sulfate soils can generate Fe- and SO4-reducing conditions in previously oxic-acidic sediments. This creates potential for mobilization of As during the redox transition. We explore the consequences for As by investigating the hydrology, porewater geochemistry, solid-phase speciation, and mineralogical partitioning of As across two tidal fringe toposequences. Seawater inundation induced a tidally controlled redox gradient. Maximum porewater As (400 i??g/L) occurred in the shallow (

UR - http://pubs.acs.org/doi/pdf/10.1021/es903114z

U2 - 10.1021/es903114z

DO - 10.1021/es903114z

M3 - Article

SN - 0013-936X

VL - 44

SP - 1968

EP - 1973

JO - Environmental Science and Technology

JF - Environmental Science and Technology

IS - 6

ER -

Arsenic mobilization in a seawater inundated acid sulfate soil

Abstract

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