Florida Department of Environmental Protection
from the web site..."Air currents and rainfall
convey reactive, inorganic mercury from the atmosphere to the earth’s
surface. Some of the deposited mercury ends up in wetlands, lakes and
streams where bacteria convert a portion into methylmercury, a toxic
form that is accumulated and biomagnified at each link in the food
chain. In some circumstances, the result is sport fish that would be
toxic if eaten by humans and prey fish that may be toxic to wildlife
that eat them.
"This worldwide effect is particularly acute in
the marshes of the Florida Everglades. There, largemouth bass have been
found with five times the level of mercury safe for human consumption
and wading birds are ingesting amounts of mercury close to levels that
could reduce their populations.
"A private - public partnership is investigating
ways to alleviate this problem. A consortium of electric utility
interests, federal and state agencies is collaborating in the South
Florida Mercury Science Program or SFMSP. SFMSP Managers meet regularly
to apportion research responsibilities, correlate funding requests and
share scientific results on Everglades mercury issues. While the SFMSP
is focused on the Everglades and South Florida, virtually all of its
work has statewide and national application.
"This site describes SFMSP strategies, plans
activities and results. Links are given to the mercury related web sites
of SFMSP participants and to other useful web sites dealing with
mercury.
EPA
USGS
South
Florida Information Access
The U.S. Geological Survey has an extensive South Florida research
program which includes a very significant Everglades mercury
component.
Aquatic
Cycling of Mercury in the Everglades (ACME)
USGS biogeochemical research is discussed under Aquatic Cycling
of Mercury in the Everglades (ACME) which has been extended as Mercury
Cycling in the Everglades Nutrient Removal Areas.
More
ACME material
Mercury
in relation to Everglades restoration
Mercury
in relation to the Everglades food web
SFWMD
Methylmercury
risk to Everglades Wading Birds: A Probabilistic Risk Assessment, November
1, 1999.
Appendix to the Year 2000, Everglades Consolidated Report.
[Listed 1/13/00].
This is an assessment of the risk to Everglades wading birds from
eating mercury contaminated prey fish. Criticisms of this risk
assessment are also included in the Appendix. The risk assessment is
an appendix to, Chapter 7: The Everglades Mercury Problem, contained in
the Year 2000, Everglades Consolidated Report of the South Florida
Water Management District, which contains a broad-ranging discussion of
mercury in the Everglades and its relation to efforts to remedy nutrient
pollution by farm runoff and to restore more natural hydroperiods to the
Everglades.
Year
2000, Everglades Consolidated Report
South Florida Water Management District [Listed 1/13/00]
The entire Report, including Chapter 7, may be accessed from
U.S. Army Corps of Engineers
Florida State University
Florida’s
Mercury Menace
from Florida State University Research in Review. [ Listed11/99]
A discussion of the history of the Florida mercury problem and recent
atmospheric research.
SWIM
Depositions

Credit:
Everglades photograph courtesy Collection
Archives through Su Jewel (1997).