Abstract
This study presents findings of indoor environmental quality (IEQ) investigations conducted in elementary schools׳ classrooms in the United Arab Emirates (UAE). Average TVOC, CO2, O3, CO, and particle concentrations measured in the classrooms were 815µg/m3, 1605ppm, 0.05ppm, 1.16ppm, and 1730µg/m3, respectively. Whereas, local authority known as Dubai Municipality recommended 300µg/m3, 800ppm, 0.06ppm, 9ppm, and 150–300µg/m3 for TVOC, CO2, O3, CO, and particle, respectively. Dubai Municipality recommended temperature and relative humidity (RH) levels of 22.5°C to 25.5°C and 30%–60%, respectively. Average temperature and RH levels measured in the classrooms were 24.5°C and 40.4%, respectively. Average sound level in the classrooms was 24dB greater than recommended sound level limit of 35dB. Six (6) classrooms had average lux levels in the range of 400–800lux. Two (2) classrooms had average lux levels in the range of 100–200lux. The remaining classrooms had lux levels around the recommended 300lux. High occupancy density was observed in majority of the studied classrooms. Observations during walkthrough investigations could be used to explain measured IEQ data. Poor IEQ conditions in the studied classrooms highlight the need for further research investigation to understand how poor classrooms׳ IEQ condition could influence students׳ health, comfort, attendance rate, and academic performance.
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