What are the occupational hazards?

1. What are the risk factors of occupational diseases?

(A) harmful factors produced in the production process

1. Chemical factors

(1) toxic substances, such as lead and mercury, and benzene, toluene, ethylbenzene, styrene and other poisons in ethylene production; There are dozens of butadiene, styrene, high aromatic oil, sodium nitrite and dicumyl peroxide in the production of styrene-butadiene rubber.

(2) Productive dust, such as petroleum coke dust in the process of petroleum refining, uses aluminum silicate powder as catalyst (dust), etc. In the process of catalyst production, there are metal dust, cement dust and so on. In addition, there are asbestos dust and coal dust.

2. Physical factors

(1) Abnormal meteorological conditions such as high temperature, high humidity and low temperature.

(2) Abnormal air pressure, such as high air pressure and low air pressure.

(3) Noise and vibration.

(4) Non-ionizing radiation, such as visible light, ultraviolet light, infrared light, radio frequency, microwave and laser.

(5) Ionizing radiation such as X-rays and γ-rays produced by radioisotope instruments.

3. Biological factors, such as Bacillus anthracis attached to fur and mold on bagasse. The petrochemical industry is rare.

(B) harmful factors in the process of labor

Labor process refers to the labor organization, operation posture and mode in the production process, and the ratio of manual labor to mental labor. In this process, the harmful factors are:

(1) During the overhaul or emergency repair, the labor organization and system are unreasonable, and the work and rest system is unreasonable. It is easy to happen;