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American Chemical Society's weekly PressPac -- April 29, 2009
Date:5/3/2009

The scientists analyzed the mercury content in muscle samples collected from ringed seals between 1973 and 2007. They then compared the levels to the length of the so-called "summer ice-free season," a warm period marked by vanishing sea ice in the seals' habitat. They found that the seals accumulated more mercury during both short (2 months) and long (5 months) ice-free seasons and postulate that this is related to the seals' food supplies. Higher seal mercury concentrations may follow relatively short ice-free seasons due to consumption of older, more highly contaminated Arctic cod while relatively long ice-free seasons may promote higher pelagic productivity and thus increased survival and abundance of Arctic cod with the overall result of more fish consumption and greater exposure to mercury. Longer ice-free seasons resulting from a warming Arctic may therefore result in higher mercury levels in ringed seal populations as well as their predators (polar bears and humans). MTS

ARTICLE #4 FOR IMMEDIATE RELEASE
"Mercury Trends in Ringed Seals (Phoca hispida) from the Western Canadian Arctic since 1973: Associations with Length of Ice-Free Season"

DOWNLOAD FULL TEXT ARTICLE: http://pubs.acs.org/stoken/presspac/presspac/full/10.1021/es803293z

CONTACT:
Gary A. Stern, Ph.D.
Senior Research Scientist, Arctic Ecosystem Health
Freshwater Institute, Department of Fisheries and Oceans
501 University Crescent, Winnipeg, MB, Canada, R3T 2N6
Phone: (204) 984-6761
Fax: (204) 984-2403
Cell: (204) 294-8523
Email (New): Gary.Stern@dfo-mpo.gc.ca


ARTICLE #5 EMBARGOED FOR 9 A.M., EASTERN TIME, May 4, 2009

"Stinky" drywall imported from China raises health and safety concerns
Chemical & Engineering News

Homeowners throughout the
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Contact: Michael Woods
m_woods@acs.org
202-872-6293
American Chemical Society
Source:Eurekalert  

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