Discuss each of the following categories of water pollutants and the problems they cause: pathogens, organic wastes, chemical pollutants, and sediments
What will be an ideal response?
Waterborne disease (pathogens) reaches water through animal (including human) wastes being discharged to land or water; the basic impact is disease. Human and animal wastes reach water by either direct discharge or runoff from land; the basic impact is the addition of nutrients (limiting factors) and disease to water. Chemicals pollute water by either direct discharge to water or runoff from land; the basic impacts are rendering "water unpalatable (or dangerous) for humans and dangerous for aquatic life." Sediments reach water as a result of erosion; the basic impact is to increase turbidity and increase the nutrient load.
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