What is the definition principle of occupational health monitoring population?

About occupational health monitoring:

1. According to GBZ 188-2007 Technical Specification for Occupational Health Surveillance:

Occupational health monitoring occupational health care

For the purpose of prevention, according to the workers' occupational contact history, through regular or irregular medical health examination and health-related data collection, the health status of workers is continuously monitored, and the relationship between workers' health changes and occupational hazards exposed to them is analyzed, and the results of health examination and data analysis are reported to employers and workers themselves in time, so as to take timely intervention measures to protect workers' health. Occupational health monitoring mainly includes occupational health examination and occupational health monitoring file management. Occupational health examination includes medical follow-up and emergency health examination before, during and after employment.

Second, the crowd, according to GBZ/T 225-20 10 "Guidelines for the Prevention and Control of Occupational Diseases in Employers"

Employers with occupational hazards, employers who produce and deal in products or raw materials with occupational hazards, units or institutions engaged in operations with occupational hazards, etc.