Stimulation of Microbially Mediated Arsenic Release in Bangladesh Aquifers by Young Carbon Indicated by Radiocarbon Analysis of Sedimentary Bacterial Lipids

The sources of reduced carbon driving the microbially mediated release of arsenic to shallow groundwater in Bangladesh remain poorly understood. Using radiocarbon analysis of phospholipid fatty acids (PLFAs) and potential carbon pools, the abundance and carbon sources of the active, sediment-associa...

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Bibliographic Details
Published in:Environmental science & technology 2016-07, Vol.50 (14), p.7353-7363
Main Authors: Whaley-Martin, K. J, Mailloux, B. J, van Geen, A, Bostick, B. C, Silvern, R. F, Kim, C, Ahmed, K. M, Choudhury, I, Slater, G. F
Format: Article
Language:English
Subjects:
Aquifers
Arsenic
Bacteria
bacterial communities
Bangladesh
Carbon
carbon sinks
dissolved inorganic carbon
DNA
Geologic Sediments - microbiology
groundwater
Groundwater - microbiology
iron
Lipids
metabolism
Microorganisms
phospholipid fatty acids
Phospholipids
Sediments
Water Pollutants, Chemical
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Summary:The sources of reduced carbon driving the microbially mediated release of arsenic to shallow groundwater in Bangladesh remain poorly understood. Using radiocarbon analysis of phospholipid fatty acids (PLFAs) and potential carbon pools, the abundance and carbon sources of the active, sediment-associated, in situ bacterial communities inhabiting shallow aquifers (
ISSN:0013-936X
1520-5851
1520-5851
DOI:10.1021/acs.est.6b00868