CLASSROOM INDOOR AIR QUALITY MONITORING AT POLITEKNIK BAGAN DATUK

Saw Chun Lin1,*, Choong Chee Guan2, Aravinthan A/L Yelumalai3

 1,3Jabatan Kejuruteraan Maritim, Politeknik Bagan Datuk, 31650 Hutan Melintang, Perak

2Jabatan Kejuruteraan Mekanikal, Politeknik Tuanku Syed Sirajuddin, 02600 Pauh, Perlis





ABSTRACT

The purpose of this study is to investigate the air quality of the classroom in Politeknik Bagan Datuk about the risk of the COVID-19 virus spreading. Two (2) classrooms 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 from 40 – 68 dB, the dust particle range from 9.2-56.2 mg/m3, humidity ranged from 25-62 % and the temperature of the classroom is between 21-27 oC. In conclusion, the findings show that the air quality in the classrooms is within an acceptable range by the Malaysia Code of Practice to prevent the risk of the post-COVID-19 virus spreading. However, the suspended dust particulate can contribute to the spreading of the COVID-19 virus because of the dust particle level exceeding 35 mg/m3 for Makmal Komputer as recommended by the New Malaysia Ambient Air Quality Standard (NMAAQS).

  


Keywords:

  Indoor Air Quality (IAQ) Carbon Dioxide (CO2) Noise (dB) Temperature (oC) Particulate ((mg/cm3) Covid-19