Scholarly Technical Education Publication Series (STEPS) Vol. 5, 2023
Classroom Indoor Air Quality Monitoring at Politeknik Bagan Datuk
Authors:
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Saw Chun Lin
Choong Chee Guan
Aravinthan A/L Yelumalai
Jabatan Kejuruteraan Maritim, Politeknik Bagan Datuk, Hutan Melintang, Perak, Malaysia
Abstract
The purpose of this study is to investigate the air quality of the classroom in Politeknik Bagan Datuk in relation to risk of covid 19 virus spreading. There are two (2) classrooms that are Bilik Studio and Bilik Kuliah 1, one (1) Makmal Komputer has been used during the investigation period of three (3) months from October until December 2022. A device is built using Arduino and sensors to measure and monitor the air quality data from 9.00 AM to 4.00 PM for randomly selected three (3) days. The student’s occupation in the investigation area ranges from 14 students to 24 students for each class. The results show that the overall reading of the CO2 emission is in the range of 530 ppm – 723 ppm, the noise level ranged reading from 40 – 68 dB, dust particle is range from 9.2 -56.2μg/m3, humidity ranged from 25-62 % and the temperature of classroom is between 21-27 oC. In conclusions, the findings show that the air quality in the classrooms is in acceptable range in accordance to Malaysia Code of Practice to prevent the risk of post Covid 19 virus spreading. However, the suspended dust particulate can contribute to spreading of Covid 19 virus because of the dust particles level exceeding 35 μg/m3 for Makmal Komputer as recommended by New Malaysia Ambient Air Quality Standard (NMAAQS).
