职业卫生的根本任务是识别、评价和控制职业有害因素,预防职业病,并创造适合工人生理、心理要求的工作环境和作业条件。其目的是为了改善劳动条件,保护劳动者的健康,提高劳动生产率。职业卫生实际工作包括监督监测与服务,应遵循预防医学的三级预防原则。职业病三级预防是:一级预防为工程治理 The fundamental task of occupational health is to identify, evaluate and control occupational hazards, prevent occupational diseases, and create a working environment and working conditions suitable for the physical and psychological requirements of workers. Its purpose is to improve working conditions, protect the health of workers and increase labor productivity. The actual work of occupational health includes monitoring and monitoring services and should follow the three-pronged preventive medicine prevention principles. Occupational disease tertiary prevention is: a prevention for the project management