#2. Prepare the list of methods available to control trace metals found in indoor environment.

#3. Look at case studies 3 and 4 given in the class notes on Internet. Examine the IAQ solution in light of information given in your book.

#4. Examine the case studies 7 and 8 given on the course website. Do you agree with the proposed solutions? Discuss your findings.

#5. Discuss the deposition of particulates in the respiratory tract of your body.

#6. Discuss different devices for removing particles in order to maintain adequate indoor air quality controls.

#7. The indoor concentrations of a public transit bus were collected in real-world conditions. For data follow the LINK

• Draw a graph for CO, NO, SO₂,and CH₂O with respect to time

• Draw a graph showing relation between CO2 and temp. w.r.t time.

#8. Identify five possible sources of bioaerosols in any building on campus.

#9. Discuss a sampling method to collect bioaerosols in a large commercial building.
 
#10.The filter used in the duct supplying 100% outdoor air to a building is 65%. The average outdoor concentration of particulate is 10⁵ μg/cum and the volumetric flow of outdoor is 3000 cum/min. Calculate the indoor air quality for the following cases:

• The indoor generation of particulate matter is 10⁸ μg/s.
   
• The indoor generation rate of particulate matter is 5.5*10⁷ μg/s.
   
• The indoor generation rate same as (previous), but the outdoor air flow is doubled.
   
• The indoor generation rate is same as (the first), but the filter efficiency is increased to 90%.

Comment on the results.