It may complex with natural or synthetic ligands which will increase its solubility and reduce its adsorption to solids thus increasing its concentration in solution and thus its mobility. Complexation may also alter the metals toxicity. Finally, some metals may undergo redox reactions which will affect their solubility and toxicity. The two primary source of surface water acidity are acid rain and acid mine drainage. Define eutrophication and list the elements or compounds which contribute to eutrophicatin and their primary sources.
Eutrophication is the enrichment of plant nutrients such as phosphate and nitrate in a water body.
This in turn causes excessive plant growth. When the plant material dies and decays it uses up oxygen causing further deterioration in water quality. Phosphates and nitrates may enter the environment from laundries, municipal waste water treatment facilities, feed lots, meat packing, fertilizers, etc. 4. Describe the 4 zones of an oxygen sag curve. Zone of cleaner water the water returns to the conditions prior to pollutant input 5.