GLwater- quality

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GL / GL Water / Water Quality

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Last updated in September, 2000

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	After the early settlement in the late 1790s, transportation development and industrial revolution resulted in serious water quality problems around the Great Lakes region. Thanks to intensive recovery efforts for the last 25 years, the Great Lakes, especially Lake Erie, are believed to have come back. But many problems still exist and continuing efforts for monitoring, maintaining and improving water quality are needed. (for more information of historical background associated with Lake Erie's water quality, please refer to the book The Great Lake Erie, Chap.12. Effect of Human activities on the Ecology of Lake Erie.)

	1. Where do all the toxins come from and go? How do toxins move through the food chain? 2. How does the estuary serve as a nursery? What happens when nutrients enter an estuary? 3. To properly evaluate water quality, what factors should be considered and measured?

	FS-006 Reducing the "red worm" parasites in your Lake Erie yellow perch catch. FS-007 PCBs: Thier history and our health. FS-009 Lymphocytis and other virus-related skin diseases in walleye. FS-015 Lake Erie phosphorus and eutrophication. FS-040 Lake Erie water quality during the 1970s and early '80s. FS-041 Ohio's Areas of Concern. FS-046 Lake Erie water quality: Past, present and future. To request these materials, please visit OSG website.

	1. Lake-Aware Kids Engaged in Relevant Science How did it get here? What is the impact of beach debris? How does debris move in surface water? Shoreline Clean-Up Does trash come up for air? What will people see on a low-water beach? What can we find on a Lake Erie beach? How does Lake Erie beach debris compare to that found in other areas? How can beach finds be classified? How long does it take to disappear? How big is the solid waste problem? 2. The Great Lake Erie 12. Effect of Human Activities on the Ecology of Lake Erie 14. Recovering From Phosphorous Enrichment 15. Toxics in Lake Erie 3. Great Lakes Instructional Materials for the Changing Earth System What will people see on the long walk to the water’s edge? How does an increased amount of lake life affect dissolved oxygen levels? What happens when nutrients enter a lake? How big is the problem of airbone toxins? Where do all the toxins go? (internal view) Where do all the toxins go? (external view) 4. Earth Systems - Education Activities for Great Lakes Schools Great Lakes Environmental Issues Who owns the resources of the Great Lakes? How (environmentally) insulting can we get? How skillfully can you read science articles? How much is one part per million? Which fish can we eat? How should the public health be protected? How do toxins move through the food chain? Toxic Chemicals in the Great Lakes Could we live without chlorine in the Great Lakes? What can we learn about water quality in a river? What happens when nutrients enter an estuary? What is the status of the Great Lakes Areas of Concern? Where does oil pollution come from? How can an oil spill be cleaned up? How does an oil spill affect living things? What if...? (A Great Lakes investigation)
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	Sources and Pathways of Pollution. (From GL Environmental Atlas)

	1. Great Lakes Water Quality Concern http://www.epa.gov/glnpo/atlas/glat-ch4.html 2. Great Lakes Water Quality Program http://www.usace.army.mil/lrd/wq_gl.htm 3. Know Your Watershed http://www.ctic.purdue.edu/KYW/KYW.html 4. The Great Lakes Water Quality Agreement http://www.ijc.org/agree/quality.html 5. Great Lakes Water Quality Initiative of NWF http://www.nwf.org/greatlakes/gli/index.html

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