Session: 17-01: Poster Presentations

Paper Number: 170027

170027 - Indoor Air Quality Findings for a Rural Manufactured Home Park in Colorado 

Abstract: 

In this study, we assessed IAQ in 15 rural homes in Lake County, Colorado, from November 2023 to February 2025, PM₂.₅, CO2, volatile organic compounds (VOCs), and temperature at ten-minute intervals. A deeper understanding of the factors influencing indoor air quality was made possible by using a clustering strategy to group homes based on key IAQ characteristics. We also investigated the relationship between indoor and outdoor air pollution to help residents determine when to naturally ventilate. Spearman's rank correlation revealed that the link between indoor and outdoor environments was stronger during the summer than in winter. Spearman's rank correlation indicated stronger indoor-outdoor links in summer than in winter. We identified two different housing groups by analyzing PM₂.₅ Indoor/Outdoor (I/O) ratios: one group had tighter building envelopes and higher occupancy, while the other group had lower occupancy and higher air leakage. We categorized homes by era of Housing and Urban Development (HUD) building codes: Pre-1976, 1976–1994, and post-1994 to study how construction standards affect indoor air quality. In addition to a 10.43% drop in CO₂ levels, homes built after 1994 showed 14.35% lower PM₂.5 concentrations than those built before 1976.

Presenting Author: Reza Saeidi colorado school of mines

Presenting Author Biography: Reza Saeidi is a Ph.D. student in Mechanical Engineering at the Colorado School of Mines. He holds a master’s from the University of Tehran, where he focused on improving heat transfer in ground-source heat pumps. His current research involves battery storage systems for residential buildings and analyzing indoor air quality data. Reza’s interests include Building energy, net-zero energy systems, HVAC design and renewable energy. Outside of research, he enjoys reading, playing chess, solving puzzles, and swimming.