A variety of indoor environmental pollution affect people's health

It is about 60~70% of their time indoors, indoor air quality and human health are closely related, but in the outdoor environmental pollution has attracted widespread attention today, people on the indoor environment pollution but often overlooked. U.S. Environmental Protection Agency on a variety of environmental testing results show that the most serious pollution is the indoor environment. According to statistics, due to indoor pollution caused by a variety of diseases, some of which even harm life.
Indoor air pollution, indoor air pollution is harmful gases (such as formaldehyde, benzene, ammonia, TVOC, etc.), physical factor and biological factor (or) into the indoor air and has reached directly or indirectly on human health, recent or long-term, or potentially harmful effect on the extent of the situation.
Mites pollution: 10 years ago, the Japanese children appeared in a doctors puzzled disease. Later identified, the mortality rate as high as 3% of the "disease", the disease no evil was actually composed of exfoliated cells were human biological mite. The mite is a small life length of about 1/3000 mm, which is transparent, not only rely on "eat" people a day off for scaling of skin. The foreign protein with the breath into the bronchial and alveolar, about 48%~80% of the asthma patients react to asthma, hay fever, eczema symptoms, and even death.
Building materials pollution: just completed houses, a number of building materials contain a certain amount of toxic substances harmful to human health, such as vinyl chloride, formaldehyde, phenols, etc.. Due to the general high temperature new room, easy to toxic substances and dust particles trapped in the room, living in this environment, causing headaches, dizziness, insomnia and other "housing syndrome".
Olefin pollution: in winter, with fire as the main heating mode of family, indoor air pollution than other seasons serious.
Flower pollution: indoor flowers can beautify the environment, edify taste, rich spiritual life. But some flowers are harmful to health. If the liquid contact with the body in the evergreen foliage, can make the skin itchy. The white milk method in stems and leaves of Poinsettia will make people's skin redness, eating its stems and leaves can cause poisoning. Mimosa containing potash is a highly toxic substances, excessive body contact may cause hair loss. The Tuberose fragrance, but easy to suffer from hypertension and heart disease who feel depressed.
On the modern residential health requirements, scientists put forward the following criteria:
Sunshine: sunlight can kill pathogenic microorganisms in the indoor air, but also to give people omitted, improve the body's immune capacity. Living room 2 hours a day is to maintain human health and development of the minimum needs.
Lighting: refers to the housing within the natural light. The effective transmittance of the window and the floor area of the room should not be less than 1:15.
Height: generally refers to the floor to ceiling height. People living in a certain space, due to breathing caused by a certain height range of air composition changes, medically known as breathing belt. The content of carbon dioxide and other harmful gases in the respiratory zone was much higher than that in other places. Therefore, in the south, the residential storey should not be less than 2.8 meters, in the north to 2.6 meters to the most suitable for 3 meters.
Microclimate: refers to the indoor environment of small temperature, relative temperature and wind speed. Room temperature should not be less than 12 degrees Celsius in winter, relative humidity should not be greater than 65%.
Air cleanliness: indoor air some harmful gases can not exceed certain content, for which to take some appropriate measures.
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