Occupancy Impact on Air Quality in Repurposed Museum Space

This study investigates the air quality and ventilation effectiveness in a repurposed museum space with a hybrid ventilation system in Ljubljana, Slovenia. Focusing on CO₂ and particulate matter concentrations, the aim is to determine the correlation between these parameters and the suitability of the ventilation system following a change in space use. Measurements were conducted over a four-month period, analyzing data during different occupancy and ventilation scenarios. The study compares observed values with World Health Organization (WHO) guidelines, specifically targeting PM_2.5, PM₁₀, and CO₂ concentrations. Findings reveal inadequate ventilation in the repurposed museum space, even with hybrid ventilation. CO₂ concentrations correlated with PM_2.5 and PM₁₀ levels, suggesting CO₂ monitoring as an indirect indicator of overall air quality. Recommendations include improving ventilation efficiency and limiting occupancy to ensure adherence to air quality standards.