Which floor has the best air quality?

Hazardous substances inevitably accumulate above 30 meters. In fact, due to the influence of the "canyon effect" (the "canyon effect" refers to the surrounding bus arteries or factories, as well as high-rise dense residences), under the action of street wind, the airflow containing dust is not moving smoothly, but "wandering" up and down in a certain interval between high-rise buildings. Pollutants near the ground rise to a certain height with the airflow and then dissipate downward or horizontally.

This "height" is about 30 meters. That is, between 8 and 11 floors. At present, there is a "high-pollutant density area" in the middle of high-rise residential buildings in many residential areas.

To put it bluntly, dust lingers between the 8th and 11th floors of these buildings, and in the process, the occupants will "breathe and share the same fate" with the dust for a period of time before "kissing goodbye". And this is a noisy space, many consumers think that they can "get away from the hustle and bustle" by living in a high-rise building, who would have thought that really listening to the noise of vehicles on the first floor is not as good as listening to it on the 8th and 14th floors. This is because the path of sound waves depends on the number of trees and buildings.

Sound usually travels in the shortest route, sometimes the upper floors also hear the noise on the main car line, it turns out, sometimes the sound will go up freely to the windows of the upper floors. The sound waves propagate in three dimensions, and the upward ones are not weaker than those on both sides, and the sound waves received by high-rise buildings are stronger than those on the lower floors of the same building. On the other hand, the lower floors are relatively less noisy due to the obstruction and absorption of the surrounding low-rise buildings and trees, which is also a factor that cannot be ignored when choosing a residence.

1.There is a saying in the industry that it is best not to buy a house with 8-12 floors, because this height is exactly the most concentrated range of floating and sinking dirt in the air; But despite all the words, there is no actual scientific report to verify it.

2.If you are in the south, of course, try not to buy the bottom layer, because it is humid, and it doesn't matter in the north.

3.Regardless of the north or south, the top floor can not be bought, because it is likely to be hot in summer and cold in winter, and the wall may leak if the quality of the project is not good.

4.You can see how the garden landscape of your community is laid out, generally speaking, if there are big trees in front of the balcony, you can buy four to six floors, because this height is just the top of the canopy, and the best effect is to look out from this height, a lush tree top reflects the beautiful scenery in the distance :)

5.If you don't care about the landscape effect in the community or the garden in the community is not good, then you can go up, and it is not bad to climb high and look far, of course, generally speaking, the higher the more expensive.

This is what the manager of our real estate company told us when he bought a house

Generally speaking, 7-12 floors are not very good.

Physically speaking, the 9 and 11 layers are the poplar ash layer, and the dust can't go up to this level. So 9 and 11 floors are not good. Of course, it is impossible to buy a house and want to be perfect, but it is possible to buy it cheaply, and it is not impossible to buy it if it is cheap.

If you're in a good position, don't think about this floor.

The above is right, in fact, according to different regions, the dust layer is also distinguished, and the general layer below can be called the gray area 16-25 layers are the most appropriate, hehe, experience talk, for reference.

It's all okay on the 26th floor of my house. Huh

Please refer to below.

What is the best floor for a high-rise house?

1. Lighting time: With the higher the floor, the longer the sunshine and the better the lighting, try to choose more than one-third of the floor.

Although every unit built by the developer meets the national sunshine standard, many of the units have sunshine standards.

It is only designed according to the minimum standard (1-2 hours of sunshine a day), which can not meet the daily sunshine needs of buyers, especially in today's sunshine where sunlight is so scarce, and sufficient lighting is already the standard configuration of a high-quality house.

However, there is no way for buyers to calculate the amount of daylight they are buying for their units, because calculating the amount of daylight for each unit is a very complex process that involves building spacing.

Floor height, sun angle.

and other factors, developers need to rely on professional computing software to complete, and it is basically impossible for buyers to calculate clearly.

National sunshine standards.

However, buyers can use the simplest way to choose, because the sunshine duration is increased according to the floor, that is, the higher the floor, the longer the sunshine, about more than one-third of each high-rise building can ensure sufficient sunshine time, if the buyer is very interested in lighting, try to choose more than one-third of the floor, that is to say, 33 floors choose more than 11 floors, 18 floors choose 6 floors or more, 11 floors choose 4 floors or more.

In this way, even if the buyer cannot calculate the sunshine time of the house, it can still ensure that the house has enough sunshine.

2. Noise pollution.

Noise pollution increases with the increase of floors, so try to choose low-floor houses to avoid noise.

1. The higher the floor, the greater the noise pollution, and only the noise pollution source is close and the noise on the floor above 26 floors will be attenuated.

The source of the noise is located in high-rise residential buildings.

In more recent cases, noise pollution will only diminish layer by layer above 26 floors.

If the noise source is far away from the high-rise residential building, the noise pollution will only increase with the higher the floor.

2. The higher the floor, the more noise sources, and there are no obstacles to weaken the noise sources.

3. Air pollution: There is no ash layer on the 9-11 floors.

But it will occur under certain circumstances"The canyon effect.

Fourth, daily convenience: the elevator on the high floor has a high cost and low water pressure.

1. The high floors are used for a long time during the peak period of the elevator, and it is inconvenient to travel for maintenance.

2. The water pressure on the upper floors is relatively low, and it is inconvenient to use it during the peak water consumption period.

To sum up: it is recommended to buy a house with a middle floor, which basically avoids various disadvantages.

1. From the perspective of lighting, try to buy more than one-third of the floor.

2. From the perspective of noise: try to buy low-rise residences.

3. From the perspective of air pollution: in areas with many high-rise buildings, do not buy 9-11 storey residences.

4. From the perspective of daily convenience: try to buy a low-rise residence.

For high-rise residential buildings, 7 or 8 floors are better floors. This floor is quiet, unaffected by car exhaust, etc., and does not make people afraid of heights.

Generally speaking, the air quality on the 6th to 10th floor, or 15th to 24th floor, is very good.

I want good air. Then choose the upper floor. Or a house close to the sea.

Summary. Hello, when buying a high-rise building, the location of six or seven floors is the best. About 20 meters is better!

First of all, from the perspective of air quality, foreign ecologists have found that the air in the upper floors is not as fresh as people think, and the air quality is worse at a height of more than 30 meters. Shuai Lei, an architectural designer engaged in real estate design, believes that generally speaking, the exhaust outlets of buildings are located on the upper floors, so it cannot be ruled out that it will have a certain impact on the residents of the high-rises.

Please wait. Hello, when buying a high-rise building, the location of six or seven floors is the best. About 20 meters is better!

First of all, from the perspective of air quality, foreign ecologists have found that the air in the upper floors is not as fresh as people think, and the air quality is worse at a height of more than 30 meters. Shuai Lei, an architectural designer engaged in real estate design, believes that generally speaking, the exhaust outlets of buildings are located on the upper floors, so it cannot be ruled out that it will have a certain impact on the residents of the high-rises.

1. The higher the floor, the air quality does not change, and the gas molecules move really fast. Therefore, the impact of air pollution is very wide. Generally speaking, residential buildings are only 100 meters high, and the air movement and pollution within this 100 meters will not have any effect.

2. Therefore, the air quality from the first floor to the top floor will not change or improve. In particular, the ash layer reported on the Internet does not exist, and there is no reason for the dust to be suspended in the air for about 30 meters. Therefore, the impact of floors on air quality is not obvious.

At most, there is a process difference when there is dust and other particles falling.

3. The floor will only bring the difference in air flow, and the increase of the floor will reduce the obstruction between the floors, which will bring about a change in the air flow. In other words, the wind outside the windows on the upper floors will be stronger. Better ventilation can be experienced at home.

This is the reason why the so-called high places are not cold. Changes in ventilation can also give the false impression that the air on the upper floors is cleaner and cooler. In fact, these are just illusions.

4. If the lower floors are along the street, they will encounter a greater impact of smoke and dust, and the lower floors will also encounter the influence of mosquitoes and moisture. Therefore, if we only talk about the effect of air quality, there is no obvious difference between the high floors and the low floors, but if we compare the air effects of other aspects, there will be some differences. Relatively speaking, buying a high floor can get better ventilation, although the air quality does not change much, but there will be a significant improvement in the physical feeling.

1. Experts suggest that when buying a building, the location of the sixth or seventh floors is the best.

2. From the perspective of air quality, foreign ecologists have found that the air in the upper floors is not as fresh as people think, and the air quality is worse at a height of more than 30 meters. Shuai Lei, an architectural designer engaged in real estate design, believes that generally speaking, the exhaust outlets of buildings are located on the upper floors, so it is not ruled out that the hungry years will have a certain impact on the residents of the high-rises. In addition, the reinforced concrete structure forces the radio waves from the electrical equipment to circulate along the building, a considerable part of which goes up to the top floor, so high-rise residents are more likely to suffer from headaches.

It is better to choose 1 3-2 3 floors, for example, for example, in the case of a high-rise residential building with 21 floors, between 7 and 14 floors is an ideal floor. In terms of air quality, the air quality is worse at heights above 30 meters. Moreover, the air in the upper floors is relatively thin, and people with certain diseases are prone to uncomfortable symptoms.

It is also necessary to fully consider the density of the house and the height of the house, and it is necessary to choose based on the actual situation of the buyer.

Floor Selection Considerations:

1. Consider lighting: the lower floors are blocked by other buildings and cannot receive sunlight, so it is recommended to choose the high floors. But pay attention to the specific planning, even if it is a high floor, if the planning is not proper, there will be no sunlight in the Heku.

2. Consider noise: the low floor is closest to the noise source, and the noise propagation is all-round, the 1-4 floors are often reduced because of the first filtration of trees and greenery, while the 5-8 floors are more noisy because of the unobstructed objects, and the noise bench is even worse, so buyers who want to avoid noise should choose to go up to the floor.

3. Consider the field of vision: The lower floors are usually accompanied by nature, very close to the ground, and the psychological comfort is the best. However, the high floors are relatively lower floors, and the view of the scenery is relatively better, and the city scenery is in full view. But it is best to avoid problems such as "roofing" and "waterlogging" on the top floor.

4. Consider the air: The air humidity in coastal cities is high, so it is recommended not to choose too low floors, too humid. But it is even more important to avoid the dust "layer", because it is said that the 8-10 layer is the ash layer, and it is also said that the 9-11 layer is the ash layer.

But the air is convection, but the lower floors are purified and filtered by greenery, and the air may be better than the upper floors.