Physical discomfort in many workplaces is often not “tired”, but rather results from the presence of very low-frequency electromagnetic fields in the workplace, radio-frequency electromagnetic fields, infrared, ultraviolet and laser types of non-ionizing radiation, which are often despised. While they do not directly damage cell dna, short-term high-intensity exposure can cause acute damage and long-term low-dose exposure can lead to irreversible chronic injuries and even cause statutory occupational diseases in our country。
I. Intangible field effects — very low frequency electromagnetic field
The very low-frequency electromagnetic field is an electromagnetic field with a frequency of 0-300 hz, produced mostly by power transmission and industrial electrical equipment, which is low-intensity, non-ionizing radiation and prone to long-term exposure。
Hf contact positions: low-frequency high-voltage power-related positions, such as electrical transmission and electrical transport, utility station duty, metallurgical electrolytic workshop operations, orbital traffic power system maintenance。
Core hazards: short-term high-intensity exposure may cause headaches, dizziness, neurofunctional disorders, etc.; long-term low-dose exposure increases the risk of cardiovascular disease and may interfere with normal neuroendocrine regulation in humans。
High frequency signal infestation - radio frequency electromagnetic field
The radio-frequency electromagnetic field frequency is between 3khz-300ghz and is mostly produced by high-frequency induction heating, high-frequency media heating, etc., and its energy can be absorbed by human tissue to produce heat and non-thermal effects. Mobile phone signals that are exposed to daily life are part of the radio-frequency electromagnetic field, but because of low launch power, the strength of the field is far below the national occupational health limit, and exposure to humans is common exposure, it is not occupationally intense, long-term close contact, and therefore there is no need for undue concern about human health。
Hf contact positions: high frequency sensor surface fire, welding, heating equipment, microwave communications, industrial frequency detection, etc。
Core hazards: short-term exposure can result in dry eyes, dizziness, short-term loss of memory, high-intensity exposure resulting in local heat burns in the skin, eye crystal damage leading to cataracts, and long-term exposure may result in chronic damage to the nervous system with persistent insomnia, low concentration and potential effects on the blood-making system。
Invisible “hot injury” - infrared radiation
Infrared core characteristics are highly heat-intensive, invisible, and injuries can easily accumulate in intangible form。
Hf contact positions: metal metallurgical casting, ceramic household/building kiln operation, infrared drying/heating equipment transport, industrial hot furnace operation, etc。
Core hazards: short-term eye, skin acute heat burns, even heat stress, heat and heat; long-term exposure is typically induced by statutory occupational cataracts, which also results in accelerated skin ageing and increased cardiovascular burden。
Iv. More than "tan" - ultraviolet radiation
Artificial ultraviolet sources of light in the working scene can be tens of times as intense as solar light, which is a major area of occupational damage。
Hf contact positions: welding cutting, ultraviolet disinfection equipment transport, uv solidification/painting operations, long-term outdoor operations, medical phototherapy operations, etc。
Core hazards: statutory occupational pathologies can be triggered in the short term by electric eye disease, acute uv sunburning, photoexposure dermatitis; long-term exposure is a clear carcinogenic factor for skin cancer and causes chronic eye pathologies, loss of contusive tissue elasticity and irreversible skin aging。
“invisible killer” — laser radiation
The concentration of laser energy is such that category 3 and above equipment is clearly humanly injurious and category 4 lasers can directly cause irreversible tissue damage。
High frequency contact positions: laser cutting/welding/marking equipment operations, laser communications, laser ranging; medical beauty operations, laboratory-related positions。
Core hazard: irregular exposure may cause acute eye damage such as retina burns, permanent blindness, and deep skin burns; as the dose of exposure increases, water bubbles, skin bleaching, and ulcer formation can occur. When exposed to high-power laser radiation, deep organs can also be damaged by skin。
Prevention of radiation hazards and emergency response
The prevention of radiation damage is always greater than the treatment and requires the joint efforts of enterprises and individuals。
Core preventive measures
1. Engineering protection: enterprises are required to secure the containment of their areas of operation, to regulate the posting of warning signs, and to regularly overhaul equipment to ensure that ultraviolet equipment and laser radiation sources do not eject to other work areas。
Personal protection: the core is the wearing of specially designed protective glasses/faces, corresponding bands, compliance suits and gloves, and the strict prohibition of naked eye-to-eye visualization of radiation sources。
3. Management protection: implementation of pre-service training, standardization of operational processes and regular operational environment monitoring and practitionersOccupational healthInspections are carried out and persons with occupational taboos are transferred from their posts in a timely manner。
Emergency damage disposal
The acute damage is immediately removed from the radiation source, eye damage is strictly prohibited, skin burns are washed continuously with liquid cold water, no bias is used and all discomforts are regulated in a timely manner to avoid further damage。
Many of the radiation injuries have accumulated quietly, and irreversible damage is irreversible once it occurs. Enterprises are required to exercise their primary responsibility for occupational protection, and workers are required to acquire the knowledge to protect themselves and protect their health。
