Indoor Air Quality Assessment in an Entertainment Venue in Surat Thani Province

Abstract

This study aimed to assess indoor air quality in an entertainment venue in Surat Thani Province, focusing on environmental factors including temperature, relative humidity, carbon dioxide (CO₂), carbon monoxide (CO), and volatile organic compounds (VOCs). Measurements were conducted from January to March 2025, over a three-month period. The results indicated that indoor temperatures were consistently lower than the recommended standard (24–26°C) at all sampling points. Relative humidity levels exceeded the guideline range (50–65%), creating conditions that may promote the growth of mold and microorganisms hazardous to health. In addition, CO₂ levels were found to be above the standard limit, with some points recording values higher than 5,500 PPM, which may negatively affect the health of employees and patrons. By contrast, CO concentrations were within acceptable limits. However, VOC levels exceeded the recommended standard at all sampling locations. These findings highlight the need to improve the building’s ventilation system and establish effective measures for air quality management in order to reduce health risks for workers and visitors. Regular air quality monitoring should be implemented in similar entertainment facilities, along with policies that promote proper building ventilation and environmental control. Such efforts would help minimize the risk of respiratory illnesses and conditions related to Sick Building Syndrome. A key limitation of this research is that it was conducted in only one venue; therefore, the results may not represent all entertainment establishments in Surat Thani Province.