Different people have different criteria for choosing a house. Some pay attention to lots, some care about lighting, and some are very picky about floors. A few days ago, a new study by the University of Bern in Switzerland found that the higher you live, the better your health and the longer your life span.
"The height of urban housing does have a certain impact on health." Peng, a researcher at the National Urban Environmental Pollution Control Technology Research Center, said that urban low-rise residential buildings are first affected by commercial facilities near the ground, road traffic and sanitary conditions. On the contrary, high-rise residential buildings will be much less affected.
The air quality is high. Generally speaking, the higher the floor above the ground, the cleaner the air. Peng explained that gaseous pollutants such as sulfur dioxide, nitrogen oxides, carbon monoxide, and well-known particulate matter such as PM2.5 and PM 10 will all decrease with the increase of floor height. If the house is close to shopping malls, downtown areas, roadside barbecues, restaurants and other places, the air quality is relatively good if you live on a high floor.
The noise pollution is small. Generally, the noise decreases with the increase of distance. Every 1 floor, the noise will be reduced by about 10 dB. Moreover, the noise of air conditioners and cooling towers in high-rise residential buildings is very weak, and the traffic noise is relatively small. However, Peng also pointed out that if high-rise buildings are close to urban main roads, the noise in the middle 3~5 floors is often the biggest, while the noise above 8 floors is relatively small.
Relatively healthy physically and mentally. Zhang Xuexin, a professor of psychology at Fudan University, said that high-rise residential buildings with good lighting and adequate ventilation are relatively bright and quiet, and people will be more relaxed. What is more advantageous is that the humidity of high-rise residential buildings is low, and the risk of diseases such as osteoarthritis and rheumatism is small. Research shows that high-rise residential buildings can reduce the harm of radioactive pollutants-radon gas to human body. Because radon gas gradually decreases from low level to high level, the risk of lung cancer is effectively reduced.
At the same time, experts also pointed out that living too high may not be all benefits. Peng said that although high-rise buildings can avoid noise to a certain extent, the noise is reflected many times, even higher than that of low-rise buildings. Zhang Haicheng, chief physician of Cardiology Department of Peking University People's Hospital, also said that the higher the floor, the more people take the elevator, resulting in less exercise.
A survey report published by British military doctor Farning shows that people in high-rise houses are more likely to suffer from mental and nervous system diseases, which is more than twice as high as that in low-rise single-family houses. In addition, high-rise residential buildings are more prone to falling, elevator failure, suicide and other events.
Location and environment are the key.
Is it better to live low or high? Wu Xiaolan, deputy director of the Institute of Aging Health and Livable Environment of China Aging Research Center, believes that living height is only one of the factors that affect health, and there is no exact standard. When choosing a house, location and environment are the key, and she gave several specific suggestions.
Locate first. When choosing a house, we should consider the surrounding environment as much as possible, as far away from downtown and commercial areas as possible, and it is best to choose a residential building that is not facing the street; At the same time, we should also pay attention to whether the greening is up to standard, because the air quality of the community with good greening and pools is relatively higher. In addition, whether the transportation is convenient and whether the surrounding education and municipal infrastructure are supporting should also be taken into account.
The story height meets the standard. Peng suggested that the height of a single floor should be no less than 2.6 meters to ensure adequate air circulation.
There is plenty of light. Adequate light will not only bring people a good mood, but also help to sterilize and help people supplement vitamin D, so I suggest you choose an apartment with plenty of sunshine and transparent lighting.
Meet the demand. Lin Jing Yi, Ph.D., School of Architecture, Tsinghua University, said that if there are elderly people or people with mobility difficulties at home, it is best to choose a residential building with an elevator.
In addition, I can make some changes and adjust the "microenvironment" of the house. For example, to enhance the sealing of doors and windows, regardless of high and low floors, screens should be installed to avoid dust and pollen pollution; Do a good job in indoor cleaning, install fresh air system and sound insulation facilities; Open the window for ventilation in time, especially in winter when indoor radon and PM2.5 are high, so it is impossible to keep warm without opening the window.
(The above answers were published on 2016-11-08. Please refer to the actual situation for the current purchase policy. )
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