Assessment of Indoor Air Quality in an Academic Laboratory: A Comparative Study with a Controlled Room

Introduction

University laboratories are complex environments characterized by confined spaces, high occupant density, and the frequent use of potentially hazardous chemicals. These factors contribute to elevated concentrations of airborne pollutants, which may pose health risks to students and laboratory personnel. Ensuring adequate indoor air quality (IAQ) is therefore crucial for safeguarding well-being and maintaining operational efficiency. This study aims to quantitatively assess IAQ in an analytical chemistry laboratory by comparing it with a controlled room under similar baseline conditions.

Methodology

Air quality was assessed using a DustTrak aerosol monitor for real-time measurements of particulate matter (PM) concentrations, specifically PM₁₀, PM_2.5, PM₁, and total PM. Measurements were conducted in both the laboratory and the controlled room to facilitate a direct comparison of environmental conditions.

Results

The findings indicate that PM_2.5 concentrations within the laboratory consistently exceeded the recommended exposure threshold of 15 µg/m³. This increase was particularly evident during student activities, suggesting that occupant presence and experimental procedures contributed to the emission and resuspension of particulate matter.

Conclusion

The elevated levels of particulate matter observed in the laboratory highlight the need for improved ventilation strategies and pollution mitigation measures. Maintaining optimal IAQ in laboratory environments is essential to protect the health and productivity of students and academic staff.