Epidemiologists use various research methods to study the impact of hazardous chemicals on health. These include cohort studies, case-control studies, and cross-sectional studies. Cohort studies follow groups of people over time to assess the long-term effects of exposure, while case-control studies compare individuals with specific health conditions to those without to identify potential risk factors. Cross-sectional studies analyze data from a specific point in time to examine the prevalence of exposure and health outcomes.
