VOC refers to volatile organic compounds (VOCs) in the air, VOCs refers to volatile organic compounds, and TVOC refers to a range of total volatile organic compounds.
VOCs mainly include benzenes, alkanes, aromatics, alkenes, halocarbons, esters, aldehydes, ketones, and others. The most common are formaldehyde, benzene, toluene, xylene, styrene, benzo[a]pyrene, trichloroethylene, chloroform, trichloroethane, diisocyanate, diisocytotoluene ester, and the like. The main sources of VOC in the air are:
1. Building materials, interior decoration materials, and living and office supplies. For example: organic solvents, paints, aqueous coatings, chemical carpets, clothing fabrics, detergents, etc.;
2. Incomplete combustion of domestic fuel and tobacco leaves, human excreta;
3, outdoor industrial exhaust, automobile exhaust, photochemical smog, etc.;
Our country's standard for TVOC content in the air is 0.6mg/m3. In case of excessive standards, eye discomfort, burning, dryness, foreign body sensation, edema, dry throat, itching, shortness of breath, asthma, headache, and anemia will occur. , dizziness, fatigue, irritability and other symptoms.
VOCs may have odor, irritant, and some compounds have a genotoxicity, can cause the body's immune level imbalance, affect the function of the central nervous system, dizziness, headache, drowsiness, weakness, chest tightness and other symptoms; may also affect the digestive system, appear Loss of appetite, nausea, etc., can severely damage the liver and hematopoietic system, allergic reactions occur.