Decoration dust should be carefully prevented

2022-07-22
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The air pollutants produced in the decoration process can be roughly divided into three categories: first, inhalable particles, such as dust; Second, microorganisms, such as bacteria and viruses; Third, organic and inorganic harmful gas pollutants, such as formaldehyde. Among them, the harmfulness of dust is not lower than that of formaldehyde we are familiar with at ordinary times

first, the harm of decoration dust

systemic damage: long-term inhalation of high concentration dust can cause systemic diseases dominated by diffuse and progressive fibrosis in the lungs; If toxic dust is inhaled, it can dissolve on the bronchial wall and be absorbed, which will be carried by the blood to all parts of the body, causing systemic poisoning and serious damage to the central nervous system, respiratory system and digestive system

local invasion: contact or inhalation of dust will first cause local irritation to the skin, cornea, mucosa, etc., and produce a series of lesions. If dust acts on the respiratory tract, it can form atrophic rhinitis, pharyngitis, laryngitis, trachea and bronchitis. Acting on the skin, it can form acne, folliculitis, pyoderma, etc

cancer risk: intensive exposure to dust such as nickel, chromium and chromate can cause lung cancer; Exposure to radioactive mineral dust, easy to produce lung cancer; Asbestos dust can cause skin cancer

on the surface, dust does not directly hurt people, but in fact, this substance is composed of various phenols and hydrocarbons, and contains substances with strong carcinogenicity, especially wood flour with light particles, which will directly enter human lung tissue and damage mucous membranes

second, the main source of decoration dust

home decoration mainly involves four types of work: Hydropower workers, bricklayers, carpenters and painters, and the corresponding dust types are cement dust, ceramic dust, wood dust and talc or gypsum dust

III. Prevention and removal methods of decoration dust

in addition to taking certain measures in personal protection, it is more important to take a multi pronged approach to governance by reducing the generation of dust at the source, avoiding diffusion after the generation of dust, and removing it in time

1. Reduce the generation of decoration dust

in the process of decoration, it is unlikely to completely avoid the generation of decoration dust. However, the source of dust can be eliminated through the selection of process and materials, which can greatly reduce the generation of dust. For example, do less carpentry on site and choose finished furniture; When cutting plates, choose dust-free cutting machine, etc. We will talk more about this later

2. Limit the diffusion of decoration dust

after the generation of decoration dust, semi enclosed, shielding and isolation facilities can be adopted without hindering the operation conditions to prevent the escape of dust or limit the dust to a local range to reduce the diffusion. For example, reduce the material drop and dust; For hydrophilic, weakly viscous materials and dust, measures such as humidification, spray and steam spraying should be taken as far as possible to reduce the dust diffusion in the cleaning process

3. Ventilation and dust removal

ventilation is to continuously send clean fresh air into the decoration site, dilute the dust concentration in the air, and discharge the polluted air out of the room, so that the harmful dust in the workplace is diluted to the corresponding maximum allowable concentration. When the dust concentration is not very high, ventilation equipment can be adopted to reduce the dust concentration in the decoration site

4. Use dust collection equipment

according to the nature, concentration, dispersion and occurrence of dust, adopt appropriate dust removal and purification equipment to eliminate and purify dust in the air and prevent secondary dust

IV. personal dust prevention measures

1. Respiratory prevention: cut off the way of dust entering the respiratory system, and carry different types of dust masks and respirators according to different types of dust

2. Skin prevention: prevent dust from contacting the skin, and correctly wear work clothes, helmet glasses, etc

3. Digestive tract prevention: it is forbidden to eat and drink on the construction site, and it is forbidden to eat, smoke, drink water, etc. on the dust operation site

during the decoration process, decoration workers and owners should take dust prevention measures. Targeted personal protection can be carried out according to the harmful ways and ways of dust to human body. There are three ways for dust to harm the human body: entering the human body through the respiratory tract, entering the body through the skin sweat glands, sebaceous glands and hair follicles on the surface of the human body, and entering the body through the digestive tract. Therefore, corresponding isolation and preventive measures can be taken

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