To promote and maintain the highest happiness of workers engaged in all occupational activities in physical, mental and social activities; Prevent workers from losing their health due to working conditions; Protect workers from harmful health factors at work; Arrange and maintain workers to work in an environment where they can adapt both physically and mentally; In short, work adapts to workers, and workers adapt to them or their jobs.

National preventive safety and health culture refers to a culture that respects the right to a safe and healthy working environment at all levels. * * *, employers and workers actively participate in the system of defining rights, responsibilities and obligations to ensure a safe and healthy working environment, and the principle of prevention is listed as the top priority.

Through systematic occupational safety and health management, including formulating national policies according to the principles of Chapter II of the ILO Convention on Occupational Safety and Health, the continuous improvement of occupational safety and health should be promoted. 198 1).

Extended data:

Inorganic dust includes mineral dust, such as asbestos, talc, coal, etc. Metal dust, such as lead, manganese, iron, beryllium, tin, zinc and their compounds; Artificial inorganic dust, such as emery, cement, glass fiber, etc.

Organic dust includes animal dust, such as fur, silk, bones, etc. Plant dust, such as cotton, hemp, grain, flax, sugar cane, wood, tea and other dust; Artificial organic dust, such as organic dyes, pesticides, synthetic resin, rubber, fiber and other dust. ?

In the production environment, a single kind of dust is rare, and in most cases, two or more kinds of dust are mixed together, which is called mixed dust.