Using the INCA-Hg model of mercury cycling to simulate total and methyl mercury concentrations in forest streams and catchments

We present a new, catchment-scale, process-based dynamic model for simulating mercury (Hg) in soils and surface waters. The Integrated Catchments Model for Mercury (INCA-Hg) simulates transport of gaseous, dissolved and solid Hg and transformations between elemental (Hg0), ionic (Hg(II)) and methyl...

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Veröffentlicht in:	The Science of the total environment 2012-05, Vol.424, p.219-231
Hauptverfasser:	Futter, M.N., Poste, A.E., Butterfield, D., Dillon, P.J., Whitehead, P.G., Dastoor, A.P., Lean, D.R.S.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Biological and physicochemical properties of pollutants. Interaction in the soil boreal forests Catchment model Catchments Computer simulation Continental surface waters Dorset dynamic models Earth sciences Earth, ocean, space Engineering and environment geology. Geothermics Environment Environmental Monitoring - methods Environmental Sciences Exact sciences and technology Forest stream biogeochemistry Hydrology INCA Mathematical models Mercury Mercury - analysis Mercury - chemistry Methylmercury methylmercury compounds Methylmercury Compounds - analysis Methylmercury Compounds - chemistry Miljövetenskap model validation Models, Chemical Monte Carlo Method Monte Carlo methods Natural water pollution Oceanografi, hydrologi, vattenresurser Oceanography, Hydrology, Water Resources Ontario Pollution Pollution, environment geology Rivers - chemistry Seasons Sensitivity and Specificity simulation models Soil and sediments pollution soil water Soils Streams surface water time series analysis Water Pollutants, Chemical - analysis Water Pollutants, Chemical - chemistry Water treatment and pollution watersheds
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Beschreibung
Zusammenfassung:	We present a new, catchment-scale, process-based dynamic model for simulating mercury (Hg) in soils and surface waters. The Integrated Catchments Model for Mercury (INCA-Hg) simulates transport of gaseous, dissolved and solid Hg and transformations between elemental (Hg0), ionic (Hg(II)) and methyl (MeHg) Hg in natural and semi-natural landscapes. The mathematical description represents the model as a series of linked, first-order differential equations describing chemical and hydrological processes in catchment soils and waters which we believe control surface water Hg dynamics. The model simulates daily time series between one and 100years long and can be applied to catchments ranging in size from
ISSN:	0048-9697 1879-1026 1879-1026
DOI:	10.1016/j.scitotenv.2012.02.048