1. BST 11524 Building
Environmental Science
We are the property manager of a centrally air-
conditioned office building located at Kwun tong
. One of our tenants made a complaint on the air
quality of the office space .Therefore we need
investigate and solve this problem.
Let apply the air-control team
to solve this problem!!
2. Background
• Office type:office maxing warehouse
• Place:between the road and sea
• The old of office:more than 30 years old
• The tenants:sell the clothers
Ps.the building always have the
new tenants decoration of the
office.
The background can help the team to
solve the problem
3. We are the air-control team.let me to introduce the factor
which affact the air quailty.
4. Parameter Unit Good Feature
Class class
Room °C 20 to < 18
Temperature 25.5 b
Relative % 40 to < 70 68
Humidity c
Air movement m/s < 0.3 0.3
Carbon Dioxide ppmv < 1,000 e 1146e
(CO2)
Carbon ppmv < 8.7 10.0
Monoxide (CO)
Respirable μg/m < 180 h 156h
Suspended 3
Particulates
(PM10)
Nitrogen ppbv < 80 89
It is the result!!
Dioxide (NO2)
Ozone (O3) ppbv < 61 75
Formaldehyde ppbv < 81 96
(HCHO)
5. We have a lot of solution to solve the problem!!
1 ventilation method
2 plants in addition to taste Method:
3 photocatalyst
4 Ozone
6 chemical method:
