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*Dr. Elsie Sunderland*, from the U.S. Environmental Protection Agency National Center for Environmental Research, will be giving a seminar on Thursday September 14, as a part of the NOAA/ University of Michigan Great Lakes and Human Health Seminar Series.

Please find details of her talk listed below.

Title: Progress made in the development of a multi-compartment mercury model for the Great Lakes Region

Speaker: *Dr. Elsie Sunderland*, U.S. Environmental Protection Agency National Center for Environmental Research

Date: Thursday, September 14

Time: 1030 AM

Location: NOAA/ GLERL
             2205 Commonwealth Blvd., Ann Arbor, MI, 48105

Over the past several years, the International Joint Commission, working with the USEPA, NOAA and Environment Canada, and with several interested state and provincial parties, in particular the Ontario Ministry of the Environment has tracked and supported the development of models simulating the behaviour of mercury in the environment. The first stage of this work was dedicated to the development and verification of the NOAA-HYSPLIT atmospheric deposition model. The results of this work can be seen in the International Air Quality Advisory Board segments of the 1999/2001 and 2001/2003 Great Lakes Priority Reports available on the International Joint Commission website. More recently, the focus of this work has moved toward an attempt to develop a linked sequence of models to track the fate of mercury from its initial release into the larger environment and its substantial distribution into waterbodies, sediments, subsequent bioaccumulation and ultimate uptake by humans. Results from an initial application using the HYSPLIT atmospheric fate and transport model integrated with coupled environmental fate and food-web bioaccumulation models for Lake Ontario will be presented. Probabilistic human exposure modeling using the MENTOR modeling system will also be discussed. This talk will focus on an overview of some of the key areas of uncertainty in the relationships between mercury emissions, deposition and concentrations in the sediments, water, fish and human exposure highlighted by the application of each sub-model to Lake Ontario. Finally, information on mercury fate and transport in the Great Lakes Regions compiled by the IJC through a series of technical meeting will be reviewed and ongoing research, data collection efforts, and model improvements will be discussed.
If you would like to go out for lunch with Dr. Sunderland after her talk, please RSVP by Wednesday, September 13.

If you have any questions or concerns, please email me at kanika.suri@noaa.gov; or call 734-741-2147.

For more information about the seminar series, please visit our website at http://www.glerl.noaa.gov/news/seminars/



Kanika Suri
Web Designer Associate

NOAA Great Lakes Environmental Research Laboratory
2205 Commonwealth Blvd.,
Ann Arbor, MI

Tel: (734) 741-2147
Fax: (734) 741-2055


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