2.5. Microorganisms in Water Quality

Try these first

1. 1.

   What does TDS stand for?

   Hint

   Think about the total things dissolved in water.

2. 2.

   How do microorganisms impact water quality?

   Hint

   Microorganisms like bacteria can be harmful.

3. 3.

   What does TDS measure?

   • Total number of microorganisms
   • Total concentration of dissolved substances
   • Total count of solid particles

   Hint

   Look at what TDS stands for.

4. 4.

   True or False: A high BOD level indicates a high level of oxygen in water.

   • True
   • False

   Hint

   Think about what BOD indicates.

5. 5.

   A municipality notices that its river has rising levels of TDS and TSS. Identify and justify five steps they should take to assess and improve water quality.

   Hint

   Consider local industries and urban runoff.

6. 6.

   Discuss the implications of high BOD and COD levels found in a local water source regarding aquatic life and water treatment strategies.

   Hint

   Link both parameters to health and ecosystem sustainability.