Baltimore Climate Tech+ 2025 www.BCT2025.com This research examines the impact of indoor air quality, with a specific focus on radon exposure, and its effects on human health. Radon is the second leading cause of lung cancer after smoking, and its presence in indoor environments remains a significant public health concern. This study hypothesizes that certain vulnerabilities, including socioeconomic status, building condition, and geographical location (e.g., rural vs. urban environments), influence the level of radon exposure and subsequent health risks. Using a mixed-methods causal-comparative case study, data will be collected and analyzed from various monitoring technologies, such as radon monitors and air quality sensors, to assess how these factors contribute to indoor radon levels. The study aims to provide a clearer understanding of how different vulnerabilities affect susceptibility to radon and contribute to health disparities related to poor indoor air quality. Juliana Smith is a senior at Long Reach High School with a passion for environmental science and public health. As part of her school's GT Intern/Mentor program, she is conducting research on the vulnerabilities behind radon exposure. In addition to her research, Juliana is currently interning at Concairge, where she has gained hands-on experience in measuring and analyzing indoor air quality, both in school and at home, to better understand the impact these environmental factors have on health. Juliana is excited to share her findings on the importance of maintaining safe air quality and raise awareness about radon exposure.