USGS - science for a changing world

Environmental Health - Toxic Substances

Science Features
Facebook share Twitter share Google Plus share Email share Add this share EH Headlines RSS Feed EH Headlines Email Signup

Glacial Ice Cores Reveal the History of Global Mercury Contamination

USGS Scientist in the field

U.S. Geological Survey scientists have unlocked historical patterns of atmospheric mercury deposition preserved in ice cores from a midlatitude glacier. For the first time, scientists have resolved historical mercury emission events such as major volcanic eruptions, the California Gold Rush, and industrialization associated with the past century. In addition, the comprehensive study has shown decreases in mercury deposition that correspond to the time period when the Clean Air Act and other emission reduction strategies became prominent.

References

Krabbenhoft, D.P. and Schuster, P.F., 2002 , Glacial Ice Cores Reveal A Record of Natural and Anthropogenic Atmospheric Mercury Deposition for the Last 270 Years: 2002 U.S. Geological Survey Fact Sheet FS-051-02, p. 2.

Schuster, P.F., Krabbenhoft, D.P., Naftz, D.L., Cecil, L.D., Olson, M.L., Dewild, J.F., Susong, D.D., and Green, J.R., 2002, Atmospheric mercury deposition during the last 270 years—A glacial ice core of natural and anthropogenic sources: Environmental Science and Technology, v. 36, no. 11, p. 2303-2310.

Related Science Features

USGS Information on Mercury

 

More Science Features

 

USGS Home Water Climate Change Science Systems Ecosystems Energy and Minerals Environmental Health Hazards

Accessibility FOIA Privacy Policies and Notices

USA.gov logo U.S. Department of the Interior | U.S. Geological Survey
URL: http://toxics.usgs.gov/highlights/ice_cores.html
Page Contact Information:
Page Last Modified: Tuesday, 04-Aug-2015 14:42:16 EDT