Dust on the human body have those hazards

The hazards of dust are manifold. Dust on the human body, the production process, product quality, economic efficiency, the environment and ecological balance and many other aspects of the adverse effects.

(1) the harm to the human body. Long-term exposure to productive dust operators, due to long-term inhalation of dust, so that the accumulation of dust in the lungs gradually increased, when it reaches a certain number of pneumoconiosis can be triggered. Pneumoconiosis is one of the most important hazards of productive dust on human body, long-term inhalation of free silica dust can trigger silicosis, long-term inhalation of metallic dust such as manganese dust, beryllium dust, etc., can trigger manganese lung, beryllium lung and other metal lungs; long-term inhalation of coal dust, such as coal lungs can be triggered, and so on. Long-term exposure to productive dust can also trigger rhinitis, pharyngitis, bronchitis and other respiratory diseases, as well as skin and mucous membrane damage, rashes, dermatitis, conjunctival damage. For example, inhalation of lime dust can cause nasal mucous membrane damage; inhalation of wool, hemp and other fibrous dust can cause bronchitis, bronchitis; contact with asphalt fumes in the sun, can cause photosensitive dermatitis, conjunctivitis and so on. Inhalation of hazardous substances dust can also cause acute or chronic poisoning, such as welding operations long-term inhalation of manganese dust, manganese poisoning can be triggered, lead smelting operators are prone to lead poisoning.

(2) the production of harm. Dust in the air at the workplace attached to high-level, precision instruments, meters, can make the accuracy of these devices decreased; attached to the transmission of machinery and equipment, running parts, so that the wear and tear of the strong drama, shorten the service life; dust can be made of certain chemical products, mechanical products, electronic products, such as paint, film, miniature bearings, motors, integrated circuits, capacitors

devices, televisions, VCRs, cameras and other quality degradation; so that the production of people, the quality of the workplace can be reduced. etc. The quality of these products will be reduced, and the vision of people in the production process will be affected, so that the working efficiency will be reduced.

(3) Harm to the environment. Dust floating in the air can make other harmful substances attached to it, the formation of serious air pollution. Organisms can cause various diseases by inhalation, cultural relics, monuments, building surfaces will be corroded and polluted. In addition, a large amount of dust suspended in the air, can reduce the visibility of the atmosphere, contributing to the formation of smog, so that the sun's heat radiation is affected.

(4) the impact on economic efficiency. Mainly in the product quality is reduced, product qualification rate is reduced, the product price is reduced; due to the shortening of the service life of machinery and equipment, so that the fixed asset investment increases, product costs rise, market competitiveness is weakened; due to the dust caused by occupational patients incapacitated, medical costs, nursing costs, health care and welfare expenses increase; work in a high concentration of dust workplaces, the operator is worried about their health, psychological burden is heavy, compared with normal conditions. Heavy burden, earlier than under normal circumstances to lose the ability to work, so that enterprises to train technicians to speed up the cycle, training costs invested in large, while causing instability in labor productivity.