In recent years, a large number of researches on indoor environmental pollution have been conducted at home and abroad. Hundreds of toxic and hazardous substances have been detected, and there are more than ten common ones. Monitoring shows that indoor environment pollution mainly includes chemical pollution, biological pollution, and radioactive pollution. There are four kinds of electromagnetic radiation pollution, of which chemical pollution is the most serious source of pollution. Chemical pollution mainly comes from building materials and decoration materials. These materials will release a variety of volatile toxic and harmful substances at room temperature, causing pollution of the living environment. What are the dangers of newly renovated houses ?
The sources and effects of indoor environmental pollution:
1. Formaldehyde is a stimulant gas with a strong gas and is a volatile organic compound. The impact of formaldehyde on human health is mainly manifested in irritating the eyes and respiratory tract, resulting in abnormal lung function, liver function, and immune function. According to foreign reports, children whose concentration is above 0.12mg/m3 are prone to asthma. Formaldehyde was identified as a suspected carcinogen by the International Agency for Research on Cancer (IARC 1995). The main sources are: wood-based panels and their products; carpets, carpet liners and carpet adhesives; interior wall paint; wood furniture;
2. The effects of volatile organic compounds (VOCs) on the human body mainly stimulate the eyes and respiratory tract, skin allergies, and cause the body to have headaches, sore throats, fatigue and other symptoms. The main sources are: Solvent wood coatings, wood-based panels and their products; carpets, carpet liners and carpet adhesives; interior wall coatings; wood furniture; wallpaper; adhesives.
3. Benzene, toluene and xylene, among which benzene was identified as a toxic carcinogen by the International Agency for Research on Cancer. Inhalation or absorption of a certain amount through the skin can cause poisoning. In severe cases, it can cause damage to the human hematopoietic system and nervous system. Toluene and xylene are colorless and transparent liquids. They are poisonous, have great irritation to the skin and mucous membranes, and have a stronger damage to the nervous system than benzene. Long-term exposure may cause bladder cancer. The main sources are: solvent wood coatings, adhesives.
4. Toluene diisocyanate (TDI) is an organic compound with a strong irritating gas. It has a strong irritant effect on the skin, eyes and respiratory tract. Long-term exposure or inhalation of high concentrations of TDI vapor can cause bronchitis, allergic asthma, pneumonia, and pulmonary edema. The main sources are: solvent wood coatings, solvent adhesives.
5, lead, cadmium, chromium, mercury, arsenic, etc. are common toxic pollutants, and their soluble substances have obvious harm to the human body. Prolonged exposure to chromium compounds on the skin can cause contact dermatitis or eczema. Excessive amounts of lead, cadmium, mercury, and arsenic cause harm to human nervous and visceral systems, especially children's growth and mental development. Therefore, it should be noted that these toxic contaminants are inadvertently imported. The main sources are: wallpaper; wood furniture; PVC sheet flooring; interior wall coating; solvent wood coating.
6. Radionuclide Radium-226, Gallium-232, and Potassium-40 are natural radioactive elements contained in the building's inorganic non-metallic materials. Its natural radioactivity emits gamma radiation or gamma rays, which is electromagnetic radiation emitted during the nuclear transition process or particle annihilation process. The gamma rays emitted from the nucleus can be seen as a photon stream. Its short wavelength and high energy have large penetrability. When radiation enters biological tissues, it may cause cell damage. Minor damage can be properly repaired, if not repaired, cell death. If the cell survives radiation exposure, but cell damage occurs due to damage, and the defense mechanism in the body does not work, and after a long delay, this mutant living cell may cause malignant lesions and turn into cancer cells. The chance of developing cancer increases with the dose, which is a random effect. The main sources are: stone, granite; architectural ceramics; gypsum products; ceiling materials; painting materials and other new materials, inorganic non-metallic building materials.
7. Ammonia is a gas with a strong irritating odor. When inhaled through the respiratory tract, it can cause contact loss, pharyngitis, vocal cord edema, cough, headache, sweating, snoring, chest pain, and severe bronchospasm and emphysema. . According to reports, long-term work in the perm office, due to the higher ammonia content in the air, chest tightness, throat, sore throat, taste and sense of smell, headache, dizziness, anorexia, fatigue and so on. The main sources are: industrial production, such as synthetic urea, fiber, plastics, concrete admixtures, metabolites, detergents.
Information on the harms of newly renovated houses was introduced here for everyone. I hope this article will be helpful to everyone. If you still have something you don't understand, you can leave a message to Xiaobian at the bottom. We will answer your questions as soon as possible.
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We all know that the indoor pollution is formaldehyde which is highly toxic and has a release period of 8 to 15 years. It is even more harmful to the elderly, children, pregnant women and immunocompromised people. It not only causes childhood leukemia, but also will affect the development of children`s intellectual and immune systems. Therefore, the floor is one of important house decorative materials. So the floor selection is a direct impact on the family's health. It is very important to their families with a true zero-formaldehyde floor. Let`s love our families from the beginning of floor.
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