Circumpolar transport and air-surface exchange of atmospheric mercury
نویسندگان
چکیده
J. Sommar, I. Wängberg, T. Berg, K. Gårdfeldt, J. Munthe, A. Richter, A. Urba, F. Wittrock, and W. H. Schroeder Department of Chemistry, Göteborg University, Kemivägen 4, 41296 Göteborg, Sweden IVL Swedish Environmental Research Institute, P.O. Box 47086, 40258 Göteborg, Sweden Norwegian Institute for Air Research (NILU), P.O. Box 100, 2027 Kjeller, Norway Institute of Environmental Physics, University of Bremen, NW1, Otto-Hahn-Allee 1, 28359 Bremen, Germany Ecological Spectroscopy Laboratory, Institute of Physics, Gostauto 12, 2600 Vilnius, Lithuania Environmental Canada: Meteorological Service of Canada, 4905 Dufferin Street, Toronto, Canada
منابع مشابه
Impacts of changes in climate, land use and land cover on atmospheric mercury
Mercury is an important pollutant that can be transported globally due to its long lifetime in the atmosphere. Atmosphere-surface exchange is a major process affecting the cycling of mercury in the global environment and its impacts on food webs. We investigate the sensitivities of the air-surface exchange, atmospheric transport, and budget of mercury to projected 2000e2050 changes in climate a...
متن کاملDynamic Surface Interface Exchanges of Mercury: A Review and Compartmentalized Modeling Framework
This paper presents a review of recent natural surface mercury exchange research in the context of a new modeling framework. The literature indicates that the mercury biogeochemical flux is more dynamic than the current models predict, with interacting multimedia storage and processes. Although several natural mercury emissions models have been created and incorporated into air quality models (...
متن کاملExchange of Mercury between the Atmosphere and Terrestrial Ecosystems
Once elemental mercury (Hg) enters the atmosphere, it may be globally distributed because of the fact that this form is relatively inert and recycled between terrestrial and aquatic surfaces. Terrestrial ecosystems may be sources, as well as shortand long-term sinks, for atmospheric Hg. Understanding whether an ecosystem is a source or sink and the magnitude of associated flux is critical for d...
متن کاملGlobal observations and modeling of atmosphere–surface exchange of elemental mercury: a critical review
Reliable quantification of air–surface fluxes of elemental Hg vapor (Hg) is crucial for understanding mercury (Hg) global biogeochemical cycles. There have been extensive measurements and modeling efforts devoted to estimating the exchange fluxes between the atmosphere and various surfaces (e.g., soil, canopies, water, snow, etc.) in the past three decades. However, large uncertainties remain d...
متن کاملIdentification of the Origins of Elevated Atmospheric Mercury Episodes Using a Lagrangian Modelling System
We report the application of a receptor-oriented transport model, the Stochastic Time-Inverted Lagrangian Transport (STILT) model, to the interpretation of hourly total gaseous mercury (TGM) concentrations at three monitoring sites in Southern Ontario during four episodes of high TGM. STILT is a Lagrangian modelling system (Lin, J.C. et al. 2003) that simulates the transport of ensembles of air...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2003