Introduction to the special issue on health risk assessment

The main purpose of health risk assessment and prediction is to explore the potential risk factors and to assess and predict the possible risks of people and individuals. It can not only intervene the high-risk groups in advance, but also improve the medical process, which has great practical significance. Health risk assessment is mainly for regulatory purposes, which usually emphasizes specific health endpoints and specific exposure routes or pathways of hypothetical population. However, in real life, people are often affected by a variety of stressors, resulting in more and more health risk factors. The traditional narrow sense of risk assessment has been unable to adapt. This special issue will focus on new methods, models and theories that have been applied or are being developed to assess the cumulative health risks of various hazards exposed to the environment. Research theses, analytical reviews, case studies, conceptual framework and policy related articles will be collected.