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Coldwater bacteria threatens Great Lakes salmon
Charlevoix Courier (5/3)
A new study shows a bacterial disease that sickens fish whether raised in captivity or in the wild is imperiling popular salmon species in the Great Lakes Basin.

Central Michigan University opens interactive Great Lakes exhibit
WWTV-TV - Cadillac, MI (4/19)
The Great Lakes are the shining jewel of Michigan. And now there's a kid-friendly exhibit featuring the beautiful bodies of water.

60,000 trees and counting
Erie Times-News (4/17)
Sixty thousand and counting. That's how many trees and shrubs have been planted by Crawford County students in 16 years, in environmental projects sponsored by the Crawford County Conservation District and Pennsylvania state Bureau of Forestry.

Presque Isle an academic draw for Gannon students
Erie Times-News (4/10)
In Pennsylvania, Presque Isle State Park has long been a draw for tourists looking for the perfect place to swim and sunbathe. But the park, Presque Isle Bay and Lake Erie are also a draw for another group: science-minded students and their teachers.

TEACH Calendar of Events
What's going on in your neighborhood this month? Meet other people and learn together at recreational and educational events! Our new dynamic calendar is updated daily with current educational events.
TEACH Areas of Concern

table of contents
Click to see larger image. Introduction
Pollution and solutions
Lake Superior and its tributaries
Lake Michigan and its tributaries
Lake Huron and its tributaries
Lake Erie and its tributaries
Lake Ontario and its tributaries
Connecting Channels
References and more information

The Great Lakes Areas of Concern (AOCs) are environmentally degraded areas within the Great Lakes basin. The U.S.-Canada Water Quality Agreement, 1987 Protocol, defined 43 Great Lakes AOCs. As of July 2000, Collingwood Harbor on Lake Huron has been the only AOC to be delisted.

To qualify as an AOC, an area must contain one or more beneficial use impairments. An impaired beneficial use means a change in the chemical, physical or biological integrity of a water body sufficient to cause any of the following:

  • restrictions on fish and wildlife consumption
  • tainting of fish and wildlife flavor
  • degradation of fish and wildlife populations
  • fish tumors or other deformities
  • bird or animal deformities or reproduction problems
  • degradation of benthos
  • restrictions on dredging activities
  • eutrophication or undesirable algae
  • drinking water restrictions, or taste and odor problems
  • beach closings
  • degradation of aesthetics
  • added costs to agriculture or industry
  • degradation of phytoplankton and zooplankton
  • loss of fish and wildlife habitat

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