1. Benzene is a colorless, yellowish, transparent oily liquid with strong aromatic gas, which is easily volatilized into steam, flammable and toxic, and is a strong carcinogen. Benzene, toluene and xylene are often collectively referred to as "triphenyl" in industry, of which benzene is the most toxic. The main hazards are strong carcinogens, leukemia and damage to the central nervous system; Irritating to eyes, respiratory tract and skin. Anemia, infection, subcutaneous hemorrhage; Headache, dizziness, fatigue!
2. Formaldehyde is a colorless and soluble irritating gas. All kinds of artificial boards, as well as adhesives, interior coatings, wallpapers and carpets are the main sources of formaldehyde. The harm of formaldehyde is long-term, latent and concealed, and its release period is often as long as 3~ 15 years. Formaldehyde can be absorbed through the respiratory tract, and long-term inhalation of formaldehyde can lead to serious diseases such as nasopharyngeal carcinoma and laryngeal cancer.
3.TVOC total volatile organic compounds
VOC is the abbreviation of English Votatile Organic Compound. The concentration of each component in VOC is low, but there are many kinds. At the same time, the mixed existence and interaction of various VOCs increase the hazard intensity. The main components of TVOC include benzene, toluene, butyl acetate, ethylbenzene, styrene and undecane. Indoor building and decoration materials are the main sources of TVOC in the air. TVOC can cause immune disorder, affect the function of the central nervous system, appear dizziness, headache, lethargy, fatigue, chest tightness and other symptoms, and may also affect the digestive system, such as loss of appetite and nausea. In severe cases, it will damage the liver and hematopoietic system, and even lead to death.
Extended data:
Skills of selecting coatings
1. Look: Check the relevant test reports of products, such as China environmental product certification and China environmental label product certification. In addition, better brand paint shops will show samples of wall paint. When buying wall paint, we should first observe the transparency and luster of the sample and judge the coating effect intuitively. Good wall topcoat coatings generally have high transparency and bright luster.
2. Smell: Does the environmentally friendly wall paint have a pungent smell? In the process of buying wall paint, you can ask to open the lid of the paint can and smell the sample paint to judge the strength of the smell.
3. Q: After entering the paint shop, you should not only listen to the explanation of the shopping guide, but also carefully ask about the price, warranty and service of the wall paint to be purchased in combination with the actual situation of your house.
4. Scratch: Scratch the paint film with hard objects such as toothpicks or nails. Good wall paint has high hardness, good scratch resistance and is not easy to scratch, while low hardness wall paint will have obvious small scratches, which will affect the beauty of the wall.
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