This study was conducted in 3 different areas of buildings at KL Sentral, namely outdoor, intermediate area (lobby) and indoor by testing the concentrations of dust particles with sizes 10 microns and 2.5 microns. Dust with the size of 10 microns and above is also known as inhalable dust which will deposit in our respiratory tract while dust with the size of 2.5 microns is also known as respirable dust which can reach the gas exchange area of our lungs, making it more hazardous.
Based on the 3 guidelines on air quality, namely: Guidance Notes for the Management of Indoor Air Quality in Offices and Public Places, Hong Kong (limit as 0.18 mg/m3), Industry Code of Practice on Indoor air Quality by the DOSH (limit as 0.15 mg/m3) and Malaysia Ambient Air Quality Standard by the Department of Environment (DOE) (limit as 0,15/m3), the level of both respirable and inhalable dust at KL Sentral is considered as very high. Building services divisions for each building at KL Sentral needs to overcome this problem and take action to raise awareness among staff about the safety and health in office buildings especially on airborne particulate matter, which is also known as dust
Source: S. A. Mohddin & N, M. Aminuddin. (2014). The exposure assessment of airborne particulates matter (PM10 & PM2.5) towards building occupants: A case study at KL Sentral, Kuala Lumpur, Malaysia. IOP Conference Series: Earth and Environmental Science, 18: 1 – 6
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