Chapter 21 Reading Guideline

 

Identify the following. Be as specific as possible, and include names, dates, and relevant facts as appropriate. Be sure to explain the significance of the term.

 

Case Study: Using Nature to Purify Sewage

            -Summarize

            -Describe the Process

 

21.1 Types and Sources of Water Pollution

 

I.                    Water Pollution

II.                 Table 21-1 Types of Water Contamination

III.               Biological Oxygen Demand

IV.              Detection of Water Pollutants

V.                 Nonpoint vs Point Sources of Pollution

 

21.2 and 21.3 Pollution of Freshwater Streams and Lakes

 

I.                    Figure 21-4

II.                 How to Reduce Stream Pollution?

III.               Pollution Problems of Lakes

IV.              Case Study: India’s Ganges River

V.                 Eutrophication

VI.              Thermal Pollution

 

21.4 Groundwater Pollution and Its Prevention

            I.          Why is it a Problem?

            II.         Ways to Protect Groundwater?

 

 

21.5 Ocean Pollution

            I.          Pollution of Coastal Areas

            II.         Case Study: Chesapeake Bay

            III.       Ocean Oil Pollution

            IV.       Oil Spills and Cleanup

            V.        Methods to Protect Coastal Waters

 

21.6 Solutions: Preventing and Reducing Surface Water Pollution

            I.          Water Pollution from Nonpoint Surfaces

            II.         Clean Water Act of 1972

III.               Septic Tanks

IV.              Primary, Secondary, and Advanced Sewage Treatment