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Paul Andersen explains how water quality can be degraded by pollutants. Wastewater is the main source of water pollution and can be measured using the BOD (biochemical oxygen demand). Dead zones, cultural eutrophication, disease, and other pollutants are included. A 'Water Pollution Concept Map' is also available for download. [9:07]
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- Knovation Readability Score: 3 (1 low difficulty, 5 high difficulty)
- The intended use for this resource is Instructional