Filters: Tags: Bemidji, Beltrami County, Minnesota (X) > partyWithName: Brady A. Ziegler (X)

Filters Date Range Past year (0) Past month (0) Past week (0) Past day (0) Custom range... To   Search Contacts Isabelle M. Cozzarelli National Research Program G.-H. Crystal Ng Madeline E. Schreiber ScienceBase U.S. Geological Survey Water Resources Categories Data (1) Tag Types Theme (1) Harvest Set (1) Place (1) Tag Schemes USGS Thesaurus (1) Geographic Names Information System (GNIS) (1) View Results as: JSON ATOM CSV

Arsenic and Iron data (2010-2015) for petroleum plume mass balance, Bemidji MN Natural attenuation of organic contaminants in groundwater can give rise to a series of complex biogeochemical reactions that release secondary contaminants to groundwater. In a crude oil contaminated aquifer, biodegradation of petroleum hydrocarbons is coupled with the reduction of ferric iron (Fe(III)) hydroxides in aquifer sediments. As a result, naturally occurring arsenic (As), adsorbed to Fe(III) hydroxides in the aquifer sediment, is mobilized from sediment into groundwater. However, Fe(III) in sediment of other zones of the aquifer has the capacity to attenuate dissolved As via re-sorption. To better evaluate how long-term biodegradation coupled with Fe-reduction and As mobilization can redistribute As mass... Categories: Data; Tags: Bemidji, Beltrami County, Minnesota, USGS Science Data Catalog (SDC), arsenic, biodegradation, biogeochemical cycling, All tags... sediment geochemistry, water chemistry, water quality, Fewer tags