{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Sun Y"],"funding":["National Institute of Environmental Health Sciences","Shenzhen Science and Technology Innovation Program","NIEHS NIH HHS","National Natural Science Foundation of China","National Science Foundation"],"pagination":["124615"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC7937834"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["406"],"pubmed_abstract":["Sediment in fluvial-deltaic plains with high-As groundwater is heterogenous but its characterization of As and Fe oxidation states lacks resolution, and is rarely attempted for aqueous and solid phases simultaneously. Here, we pair high-resolution (> 1 sample/meter) Fe extended fine-structure spectroscopy (EXAFS, n = 40) and As X-ray absorption near-edge spectroscopy (XANES, n = 49) with groundwater composition and metagenomics measurements for two sediment cores and their associated wells (n = 8) from the Yinchuan Plain in northwest China. At shallower depths, nitrate and Mn/Fe reducing sediment zones are fine textured, contain 9.6 ± 5.6 mg kg<sup>-1</sup> of As(V) and 2.3 ± 2.7 mg kg<sup>-1</sup> of As(III) with 9.1 ± 8.1 g kg<sup>-1</sup> of Fe(III) (hydr)oxides, with bacterial genera c"],"journal":["Journal of hazardous materials"],"pubmed_title":["Reduction of iron (hydr)oxide-bound arsenate: Evidence from high depth resolution sampling of a reducing aquifer in Yinchuan Plain, China."],"pmcid":["PMC7937834"],"funding_grant_id":["P42 ES010349"],"pubmed_authors":["Xia Y","Zheng Y","Li Z","Han L","Nghiem AA","Bostick BC","Zhang M","Liu S","Han S","Sun Y","Sun J","Ellis T"],"additional_accession":[]},"is_claimable":false,"name":"Reduction of iron (hydr)oxide-bound arsenate: Evidence from high depth resolution sampling of a reducing aquifer in Yinchuan Plain, China.","description":"Sediment in fluvial-deltaic plains with high-As groundwater is heterogenous but its characterization of As and Fe oxidation states lacks resolution, and is rarely attempted for aqueous and solid phases simultaneously. Here, we pair high-resolution (> 1 sample/meter) Fe extended fine-structure spectroscopy (EXAFS, n = 40) and As X-ray absorption near-edge spectroscopy (XANES, n = 49) with groundwater composition and metagenomics measurements for two sediment cores and their associated wells (n = 8) from the Yinchuan Plain in northwest China. At shallower depths, nitrate and Mn/Fe reducing sediment zones are fine textured, contain 9.6 ± 5.6 mg kg<sup>-1</sup> of As(V) and 2.3 ± 2.7 mg kg<sup>-1</sup> of As(III) with 9.1 ± 8.1 g kg<sup>-1</sup> of Fe(III) (hydr)oxides, with bacterial genera c","dates":{"release":"2021-01-01T00:00:00Z","publication":"2021 Mar","modification":"2025-04-04T02:38:19.433Z","creation":"2024-11-15T21:04:19.193Z"},"accession":"S-EPMC7937834","cross_references":{"pubmed":["33310320"],"doi":["10.1016/j.jhazmat.2020.124615"]}}