What are the main indoor pollution

Formaldehyde. Mainly from man-made board, will stimulate people's respiratory system, causing throat inflammation, asthma and other diseases, is listed as a suspected carcinogen WHO. Our provisions, the concentration of formaldehyde in the room can not be more than 0.08 mg / cubic meter.
Benzene series. Including benzene, toluene and xylene, mainly in the paint, plastic and all kinds of interior wall paint. Benzene will harm the body's hematopoietic function, causing blood disease, can also cause cancer, has been identified as a carcinogen WHO. The Ministry of health in 2001 to develop the "indoor air quality and hygiene standards", indoor air benzene standard is less than 0.087 mg per cubic meter.
Ammonia. Indoor ammonia is mainly derived from concrete antifreeze. Ammonia mainly on the human body's respiratory tract, eye mucous membranes and skin damage caused by the appearance of tears, headaches, dizziness and other symptoms. In 2001, "civil building engineering indoor environmental pollution control norms", indoor air ammonia concentration of 0.2 mg per cubic meter.
Radon. Radon exists in building cement, slag brick, decorative stone and soil. Radon is a radioactive substance, it is the main harm to the human body is to lead to lung cancer. According to reports, radon is the second largest cause of lung cancer in addition to smoking. China's national standard of radon content is: less than 100BQ/ cubic meters of new houses; less than 200BQ/ cubic meters of existing homes.
In addition, the radiation of the building materials will produce radiation hazards to the human body. This is mainly the natural stone in the radium, thorium, potassium three radioactive elements produced in the decay of radioactive materials. According to the "interior decoration materials harmful substances limited" in accordance with the relevant provisions of the radioactive level of decoration materials, the natural stone products are divided into A, B, C three categories, interior decoration should choose a type of stone.
The mistake of living room decoration
Scientifically determine the decoration design. Even if it is a qualified product, it is best not to use a large area of material, especially in the room of the ground material. Must take into account the carrying capacity of the space, otherwise it may be due to excessive accumulation of some harmful substances and cause damage. Room decoration design do not be one-sided pursuit of color and a large number of use of color paint, to prevent lead pollution in the room.
Scientific selection and construction technology. In addition to the special requirements, generally do not in the composite floor decking Daxinban; choose the right wall sealing material; Daxinban dozen cabinet and heating cover, there must with formaldehyde sealant to seal, it is best not to have exposed areas; paint the best selection of film thick, good sealing property.
Scientific and reasonable check in. Newly renovated house do not rush to stay, should be as far as possible for indoor ventilation for some time, generally in a month or so, and other harmful gases after the release. The conditions should first please indoor environmental testing department for testing, listen to the views of experts, the problem of the emergence of scientific management methods, in order to determine the appropriate time to stay.
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