The Master of Science in toxicology is a one- to two-year program designed to prepare students for professional school, pursuit of a Ph.D., or careers in industry, government, and consulting. It focuses on the effects of chemicals and other potentially harmful agents on the health of the environment, humans, and animals. Upon completion of coursework, students in this program have the option of either taking a comprehensive exam or completing a professional paper with the consent of a faculty member.<br>Students enrolled in the 1-year master's program can switch to the thesis option after their first semester in the program once they have secured a faculty sponsor.<br>The Department of Environmental and Radiological Health Sciences is home to one of the largest environmental health programs in the nation, and the only one that incorporates radiological health into its core curriculum. Students and researchers in environmental health investigate how natural and built environments affect human and animal health and seek solutions to minimize negative health consequences of environmental and workplace exposures. Radiological health has a long tradition at CSU focused on the biological effects of radiation, including laboratory studies of the damaging effects of radiation, and clinical uses of radiation in diagnostic imaging and cancer therapy.