Case 11

BuildingCommon area at office tower
LocationCeiling board
Ventilation ModeAir-conditioning
Sampling MethodTape sampling, Culturing
No. of Tape Samples1
No. of Cultured Samples (from tape)4
Medium UsedPotato Dextrose Agar (PDA)

Temperature (°C): 26.8
Relative Humidity (RH): 58.3
Wind Speed (m/s): 0.16

11-1

Building

11-2

Mould was found on the false ceiling at the upper storey of offices at this part-office, part-shopping complex air-conditioned development.

Observation

Indoor readings show no extraordinary signs of heat and humidity. However past leakages soaked the ceiling boards to form brown water stains at the exposed surface.

Identified Fungus

11-5