WATER QUALITY IMPACTS ASSOCIATED WITH EUTROPHICATION

• Noxious algae (scums, blue-greens, taste and odor, visual)
• Excessive macrophyte growth (loss of open water)
• Loss of clarity (secchi depth goes down)
• Possible loss of macrophytes (via light limitation by algae and periphyton)
• Low dissolved oxygen (loss of habitat for fish and fish food)
• Excessive organic matter production (smothering eggs and bugs)
• Blue-green algae inedible by some zooplankton (reduced food chain efficiency)
• "Toxic" gases (ammonia, H₂S) in bottom water (more loss of fish habitat)
• Possible toxins from some species of blue-green algae
• Chemical treatment by lakeshore homeowners or managers may result (copper, diquat, 2,4-D, etc.)
• Drinking water degradation from treatment disinfection byproducts
• Carcinogens, such as chloroform (from increased organic matter reacting with disinfectants like chlorine)