Christopher Blaszczak-Boxe, Ph.D., is a researcher in the Department of Earth, Environment and Equity at Howard University. His work connects atmospheric chemistry, air quality, environmental health, and planetary science through observations, computational modeling, machine learning, and multilevel statistical analysis. His research examines aerosol composition and classification, air-pollution exposure, atmospheric dynamics, and the chemical cycles of Earth and planetary atmospheres. He develops approaches for interpreting complex environmental datasets, with particular attention to measurement quality, uncertainty, reproducibility, and the physical meaning of patterns identified by statistical and machine-learning models. His current projects include single-particle mass spectrometry classification, urban–rural aerosol variability, community-based air-quality assessment, Martian atmospheric processes, and exploration concepts for icy worlds such as Enceladus. Across these areas, his goal is to turn complex observations into reliable scientific understanding that informs environmental health and planetary exploration.