3. Lecture – 12

Try these first

1. 1.

   Define a sample in the context of environmental analysis.

   Hint

   Think about what it represents in a study.

2. 2.

   What is TSS?

   Hint

   Focus on the nature of the substance being measured.

3. 3.

   What is the primary goal of environmental sampling?

   • To collect samples
   • To measure concentrations
   • To analyze pollution

   Hint

   Think about what information we are trying to gather.

4. 4.

   True or False: Detection limits refer to the highest concentration measurable by an instrument.

   • True
   • False

   Hint

   Focus on the definition of detection limits.

5. 5.

   You need to measure TSS in a water body with suspected low concentrations. Describe how you would design your sampling plan, taking into consideration all relevant factors discussed.

   Hint

   Consider factors like volume, detection limits, and method of analysis in your design.

6. 6.

   Explain a scenario where precision might be high, but accuracy is low in the context of environmental sampling.

   Hint

   Think about how measurement reliability can misrepresent true values.