title: Evaluation of small-scale constructed wetland for water quality and Hg transformation.
abstract: Elevated concentrations of nutrients and mercury (Hg) make Steamboat Creek (SBC) the most polluted tributary of the Truckee River. Since wetlands are considered cost-effective, reliable, and potential sites for methylmercury (MeHg) production, a small-scale wetland system was constructed and monitored for several years in order to quantify both nutrient removal and transformation of mercury. Results indicated seasonal variations in nutrient removal with 40-75% of total nitrogen and 30-60% of total phosphorus being removed with highest removals during summer and lowest removals during winter. The wetland system behaved as a sink for MeHg during the winter months and as a source for MeHg during summer months.
authors: Department of Civil and Environmental Engineering, University of Nevada, Reno, NV 89557, USA. chavanp@unr.nevada.edu
authors: Prithviraj V
authors: PV
authors: Chavan
authors: Keith E
authors: KE
authors: Dennett
authors: Eric A
authors: EA
authors: Marchand
mesh_terms: D004784:Environmental Monitoring / Q000379:methods*; D004867:Equipment Design; D008628:Mercury / Q000302:isolation & purification*; D008767:Methylmercury Compounds / Q000302:isolation & purification; D009584:Nitrogen / Q000302:isolation & purification; D010758:Phosphorus / Q000302:isolation & purification; D012621:Seasons; D014872:Water Movements; D014874:Water Pollutants, Chemical; D018508:Water Purification / Q000379:methods*; D053833:Wetlands
chemical_list: D008767:Methylmercury Compounds; D014874:Water Pollutants, Chemical; D010758:Phosphorus; D008628:Mercury; D009584:Nitrogen