TEMPORAL AND SPATIAL ASSESSMENT OF INDOOR AIR QUALITY (IAQ) ON PHYSICAL AND CHEMICAL PARAMETERS IN PRIMARY SCHOOLS

Abstract

Indoor air quality (IAQ) is very important for children's health and well-being since children are particularly vulnerable and sensitive to the presence of air pollutants. Poor indoor air quality brings negative health effects to young children especially primary school students. Data were measured using Dust TraxDRX Aerosol 8454, Kanomax IAQ and TSI IAQ 9545 for 3 days starting from 0700 hrs to 1400 hrs. The objective of this research was to analyze the chemical and physical parameters inside the classroom such as particulate matter less than 10 micron (PM10), carbon dioxide (CO2), air temperature, air movement, and relative humidity. Results shows that the concentration of carbon dioxide (635.5 – 756ppm) and (723 - 806.5ppm) for both institutional and residential area, respectively are within the limits. Result for PM10 (0.039 – 0.129mg/m3) and (0.061 – 0.109mg/m3), relative humidity (76.15% - 88.6%) and (60.9% - 86.75%), air movement (0.08m/s – 0.82m/s) and (0.08m/s – 0.88m/s), and temperature (27.25˚ C – 30.8˚C) and (26.75˚ C – 31.0˚ C) for institutional and residential area respectively, did not comply with the (ICOP-IAQ 2010) standard. Spatial mapping conducted by using Surfer® and Sketchup® that has been overlaid showing the critical points at the teacher’s desk, middle section of the classroom, and at the back of the classroom. Critical point was observed at the middle section of the class as most of the student resides and at the back of the classroom where there is furniture that contain particulates.