Crowd watching fireworks (Courtesy of Adobe Stock)During this summer’s Independence Day celebration, Cal State Fullerton chemistry researchers will collect particle samples from dazzling fireworks displays in the nighttime sky to determine adverse health impacts. To collect data, air sensors will be placed on top of campus buildings, including Dan Black Hall and the College of Humanities and Social Sciences. Chemistry alums Esther Morales, left, and Danielle Rocco collected data on July Fourth in 2021 at the Biological Science Greenhouse Complex. This academic year, chemistry students, including Deflin, continued to work on the research with data from 2023 and 2024. Chemistry graduate student Zeinab Khalil, who plans to complete the degree program next year, is continuing work on the fireworks research by analyzing particle samples collected in 2024 and 2025.