Jump to main content.

Open Lakes Trend Monitoring Program: Total Chlordane

Contact Information

For further information on the Great Lakes Fish Monitoring and Surveillance Program, please contact:

Elizabeth Murphy (murphy.elizabeth@epa.gov)
Environmental Scientist
EPA Great Lakes National Program Office
(312) 353-4227 or 1-800-621-8431 x34227

Access the Data

Data produced by the GLFMSP can be obtained through the Great Lakes Environmental Database Query System or through the University of Illinois Extension website Exit EPA Disclaimer

You can also contact the program manager, Elizabeth Murphy, for information regarding the GLFMSP and/or supporting data.

Peer reviewed journal articles published using GLFMSP data can also be found on the Reports & Links page.

Mean total chlordane concentration (ppb) in lake trout/walleye from 1999 through 2008.

Mean total chlordane concentration (ppb) in lake trout/walleye from 1999 through 2009. (Click to enlarge)

Chlordane is an organochlorine pesticide that was banned from use in the U.S. in 1983 with the exception of use for termite control. In 1988 chlordane was banned for all uses. Concentrations of α- + γ-chlordane in whole Lake Trout and Walleye have consistently declined since the chemical was banned by the U.S. EPA. In recent years, the concentrations in fish appear to have reached a steady state with no significant increases or decreases. The highest observed median concentrations are in Lake Trout from Lake Michigan (0.018 µg/g ww), followed by Lake Ontario (0.012 µg/g ww). Median concentration in Lakes Superior, Huron, and Erie are all below 0.01 µg/g ww.

GLFMSP chlordane publications:

Local Navigation

Jump to main content.