Expert studies show that there are more than 500 kinds of volatile organic compounds in indoor air, where there are more than 20 kinds of carcinogens formaldehyde detection Dang CMA certification, more than 200 kinds of pathogenic viruses. Harmful are: formaldehyde, benzene, radon, ammonia and esters, such as trichlorethylene. Now the national standard "civil engineering indoor environmental pollution control norms" (GB-50325-2001) in the five control pollutants on human health hazards as outlined below: Formaldehyde is a colorless soluble irritant gases. Particleboard, MDF, plywood and other artificial board, adhesives and wallpaper are the main source of formaldehyde in the air, the release of up to 3 to 15 years. Can be absorbed through the respiratory tract, the health hazards of formaldehyde on a long-term, latent, hidden features. Long-term inhalation of formaldehyde can cause nasopharyngeal, laryngeal cancer and other serious illnesses. Ammonia is a colorless gas with a strong pungent odor. Mainly from the concrete admixtures such as antifreeze, fire board of flame retardants. Eye, throat, upper respiratory tract have a strong stimulating effect Dang addition to formaldehyde, which can cause poisoning through the skin and the respiratory tract, the light caused by congestion, increased secretions, pulmonary edema, bronchitis, dermatitis, severe laryngeal edema can occur, larynx spasm, it can cause breathing difficulties, coma, shock, high levels of ammonia can cause even stop breathing reflex. TVOC volatile organic compounds (VOC) in indoor air pollutants as a heterogeneous, due to their low concentrations alone, but many kinds, generally not one by one, respectively, to represent the total amount of TVOC. TVOC include formaldehyde, benzene, (m-) (o) xylene, styrene, ethylbenzene, butyl acetate, trichlorethylene, chloroform, undecane. Interior architecture and decoration materials is the main source of air TVOC. Studies have shown that formaldehyde detection Dang treatment method, even in indoor air concentrations are less than its individual VOC content limit, but a variety of mixed VOC and their interactions, it is so harmful intensity increases. TVOC exhibit toxicity, irritation, can cause the level of immune disorders affecting the central nervous system function, dizziness, headache, drowsiness, weakness, chest tightness and other symptoms, may also affect the digestive system, loss of appetite, nausea, severe cases can damage the liver and hematopoietic systems, and even cause death. Dang Dang formaldehyde detection governance institutions _ _ formaldehyde detection governance and environmental protection provided by Chuzhou Green Ribbon Green Ribbon Indoor Environmental Services Limited. Chuzhou Green Ribbon Indoor Environmental Services Ltd. (www.lsd5188.com) strong, credible, Chuzhou, Anhui environmental projects in collaboration industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the green ribbon into the brilliant green and you work for a better future!