Final answer:
Exposure to asbestos contamination is a Healthy People 2030 Social Determinant of Health that impacted the population of Libby, Montana, making it vulnerable to health risks.
Step-by-step explanation:
A Healthy People 2030 Social Determinant of Health that impacted the population of Libby, Montana causing it to be vulnerable is exposure to environmental hazards, specifically asbestos contamination. Libby, Montana is known for its long history of asbestos mining and processing, which has resulted in significant health risks for the population. Exposure to asbestos can lead to serious health conditions, such as lung cancer and mesothelioma.
Rationale: The presence of asbestos in the environment has put the population of Libby, Montana at a higher risk of developing asbestos-related diseases. This social determinant of health has made the population vulnerable to the negative health impacts associated with asbestos exposure.