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In life, we remove the smell of use or understand some of the products, for example, we are in the car (especially new cars), or the newly renovated rooms, the use of bamboo, pineapple, negative ion generator, photocatalyst,bamboo kitchen etc. These were to some extent, help us to some of the air pollutants in addition to reducing pollutants to the potential harm to our bodies. The diversity of sources of air pollution, harm to human body is sustained and cumulative, and here we are sources of air pollution, dangers and solutions to make a brief introduction:
U.S. Environmental Protection Agency, a research shows that indoor air than outdoor pollution levels were generally 2-5 times serious, in exceptional cases up to 100 times. If inhaled per day is the polluted air, then the body will cause great harm to health.
WHO survey of bamboo flooring Canada: 68% of the disease from indoor air pollution, 80% to 90% of the causes of cancer and living environment. Years of medical studies have shown that most of the diseases related to air pollution, especially cancer and respiratory diseases. China each year caused by indoor air pollution has reached 11 million deaths! In recent years, an upward trend in the incidence of leukemia, including home improvement for a variety of harmful gases is an important factor. Indoor air pollution has been reduced to endanger public health one of the 5 types of environmental factors.
A survey study showed that the indoor air of toxic and harmful substances are common to thousands of dozens. According to the nature of pollutants can be divided into:
Physical pollutants: dust, pollen and other particulates, and radioactive materials and electromagnetic radiation. Outdoor and indoor atmospheric environment from the daily activities and concrete workers released from the decay of radon and its daughters, as well as finished products made from the stones emit radiation, and electromagnetic radiation generated by household appliances.
Chemical pollutants: nitrogen oxides, sulfur oxides, carbon oxides and other inorganic pollutants and formaldehyde, benzene, xylene and other organic pollutants. From the decoration, furniture, toys, gas water heater (incomplete combustion), insecticide sprays, cosmetics, smoking, kitchen fumes, etc.
Biological sources: bacteria, viruses, dust mites, mold and so on. Mainly from the outdoor air, indoor staff metabolites and indoor heating or combustion equipment (bacteria, viruses and mites, etc.)
After the formation of air pollution, has its characteristics. We know that in newly renovated house, we will use windows to allow air circulation intensified, blowing outdoor pollutants, and that these pollutants, in the end will stay in the room how long? Here we make a description of the characteristics of pollutants:
Cumulative: the indoor environment is a relatively closed space, the formation of one of the characteristics of pollution is cumulative. Result from the concentration of pollutants into the interior to the outdoor concentration gradually to zero discharge, most need to go through a long time. Room a variety of items, including building decorative materials, furniture, carpet and so may release certain chemicals, they will gradually accumulate in the interior, resulting in increased concentration of pollutants, constitute the human body.
Long-term: As most people most of the time in the indoor environment, even in small concentrations of pollutants, in the long term effect on the human body, but also affect human health. :3-15 years of formaldehyde, benzene and benzene, TVOC, ammonia: 6 months -1 year, Radon: a long time.
Diversity: indoor air pollutants are biological pollutants such as bacteria; chemical pollutants, such as formaldehyde, ammonia, benzene, carbon monoxide, carbon dioxide, nitrogen oxides, sulfur dioxide, etc.; there are radioactive radon and its daughters pollutants body.
The treatment of air pollution, there are many solutions, different methods, and its relevance to the different pollutants, principles and effects are different.