FMT407 Indoor Environmental Quality Tutor-Marked Assignment 01, 2026
2 min read FMT407 Tutor-Marked Assignment 01
Question 1
As the designated IAQ manager for your facility, you have received numerous complaints of poor indoor air quality. The facility is a 15-storey office building of rectangular floor plate with 400 m2 per floor. Each floor is served by a central air-handling unit. It has the following amenities:
- Open-plan office
- Meeting rooms
(a) Prepare an indoor air quality audit specification for an invitation to quote (ITQ) from accredited laboratories. Discuss the specific components to be included such as (i) the IAQ parameters, (ii) the number of sampling points, and (iii) the height of the sampling point.
(20 marks)
(b) Justify the choice and number of sampling locations and the height of the sampling point specified in the ITQ.
(30 marks)
Question 2
Table Q2 shows the results of the measurements of total bacteria count, Formaldehyde and PM2.5 on the 9th Floor of your facility on a weekday. Separate psychrometric measurements have found that indoor air temperature and humidity are within acceptable ASHRAE limits.
(a) Examine and summarize the key findings in Table Q2.
(10 marks)
(b) Give your observations and suggested recommendations to the building owner.
(28 marks)
(c) Discuss the impact of selecting appropriate materials to reduce Formaldehyde levels.
(12 marks)
| Period | Sampling Location | Total Bacteria (CFU/m3) | Formaldehyde (ppb) | PM2.5 (mg/m3) |
| Occupied | open-plan office | 850 | 45 | 20 |
| meeting room | 1250 | 70 | 35 | |
| after AHU shutdown | open-plan office | 500 | 95 | 12 |
| meeting room | 600 | 140 | 20 |
Table Q2: Selected IAQ parameters of 9th Floor
—- End of Tutor-Marked Assignment 01 —-
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