PPE

What are occupational hazards?

There are various occupational hazards in poor working conditions, which can be divided into three categories according to their sources:

1. Chemical factors: toxic substances, such as lead, mercury, chlorine, carbon monoxide, organophosphorus pesticides, etc; Productive dust, such as silica dust, asbestos dust, coal dust, organic dust, etc< Physical factors: abnormal meteorological conditions, such as high temperature, high humidity, high pressure, low pressure, etc; Noise and vibration; Radio frequency, microwave, infrared, ultraviolet; X-ray, y-ray, etc< Biological factors: anthrax, Brucella, forest encephalitis virus, etc< Second, the harmful factors in the process of scientific research 1


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