What are the main indoor pollutants and what are the main pollutants of indoor air pollution

Updated on home 2024-02-17
2 answers
  1. Anonymous users2024-02-06

    After the decoration of the new house, the odor we smell is not only formaldehyde, but also paints, coatings and other decoration products will also produce benzene, toluene, xylene, TVOC and other organic substances when used, and these organic substances have a special smell. If you want to quickly meet the safety standards of indoor air quality after decoration, the following methods are recommended for you to collect and use.

    1. Wise Stone.

    It is a very popular purification product on the market in recent years, the main reason is that it has the dual function of absorption and decomposition, can actively absorb free formaldehyde in the air, and does not have to worry about the influence of external factors such as temperature, humidity, light, etc. The adsorbed formaldehyde will also be decomposed into water and carbon dioxide and discharged from the body, without drying and no secondary pollution. When choosing, it is important to note that it is a gray ore with an irregular shape and is not a round particle.

    2. Open windows for ventilation.

    Opening windows for ventilation may be the easiest and fastest way to remove formaldehyde, but the most important premise of ventilation to remove formaldehyde is to maintain ventilation, where ventilation is not simply to open the window, the most important thing is to achieve indoor and outdoor air convection, so as to achieve the effect of removing formaldehyde. For example, in summer and winter, when the air conditioner is turned on, the doors and windows are closed or there is no wind outside, the effect of removing formaldehyde cannot be achieved.

    3. Plants.

    Putting some green plants at home can also effectively remove odors, especially pothos, spider plants, aloe vera, monstera, cactus, ivy, etc., which can effectively absorb harmful gases. In addition, large plants such as the Ping An tree and the camphor tree, which are more popular on the market, can release a fresh gas on their own, which makes people feel happy, and is also more suitable for removing the smell of new furniture

    Fourth, photocatalysts.

    Photocatalyst, as the name suggests, is a catalyst mentioned in our junior high school chemistry, which decomposes formaldehyde into carbon dioxide and water through light, reduces the formaldehyde content in the room, and achieves the purpose of removing formaldehyde.

    Fifth, the fresh air system.

    The fresh air system can introduce fresh air outside and discharge harmful substances from the indoor space through the system's filtration device during the period when the windows cannot be opened, which will reduce the concentration of free organic pollutants in the indoor space to a certain extent and speed up the release of pollutants. Through continuous circulation, the indoor decoration pollution is controlled.

    Formaldehyde, as a colorless and toxic gas, if exposed to it for a long time, will seriously affect people's health, and even suffer from respiratory diseases, and can also cause allergic rhinitis and pigmentation, so it is necessary to remove formaldehyde before moving into a new house, and it is recommended to carry out a variety of methods at the same time.

  2. Anonymous users2024-02-05

    1. Indoor gas pollutants:

    1. Inorganic compounds: carbon monoxide, carbon dioxide, sulfur dioxide, nitrogen oxides, ozone, ammonia, etc.;

    2. Categories of organic compounds:

    a. High volatile organic compounds (VOC - boiling point less than 0-50 100):

    Methane, ethylene, acetylene, freon, formaldehyde, vinyl chloride monomer, methylamine, butane, methyl mercaptan, acetaldehyde, pentane, dichloromethane, etc.;

    b. Volatile organic compounds (VOC - boiling point 50 100 to 240 260):

    n-hexane, ethyl acetate, ethanol, benzene, methyl ethyl ketone, toluene, trichloroethane, butanol, xylene, decane, limonene, p-dichlorobenzene, etc.;

    c. Semi-volatile organic compounds (svoc - boiling point 240 260 to 380 400):

    L-nicotine, tributyl phosphate, thiabendazole, dibutyl phthalate, dioctyl phthalate, etc.;

    d. Particulate organic matter (boiling point 380): benzopyrene.

    2. Indoor particulate pollutants:

    1. Abiotic particles: asbestos, glass fiber, condensed metal particles (arsenic, cadmium, etc.), etc.;

    Internationally, the HAPS-Hazardous Air Pollutants Clean Air Act Amendment proposes 189 priority air pollutants, most of which are also common air pollutants in the indoor environment. The classification method is divided according to organic matter and inorganic matter, and the boiling point is further subdivided into four categories of inorganic pollutants, with a total of 189 kinds of organic matter.

    Hope it helps.

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