Is the air better in the morning or at night?

The air quality in the morning is actually the worst, and plants are photosynthesizing at this time.

A large amount of carbon dioxide is produced.

It's not when the air quality is at its best.

The worst air quality of the day is at 7 o'clock in the morning. At this time, there is a lot of water vapor accumulated in the air and a high concentration of pollutants. In the event of heavy fog, it is necessary to prevent respiratory diseases and reduce outdoor activities in the early morning.

The fog tends to suck impurities in the air, and even some bacteria-causing microorganisms onto people.

In the evening, plants switch from photosynthesis to respiration at this time.

A large amount of oxygen is released, which is beneficial for the person's breathing.

Air negative ions at different times of the day.

There are 2 peaks, one at 8:30 a.m. and one at 18:25 p.m.

The sun goes down in the evening and returns to cool weather in the summer, and the temperature is not low in the winter.

Evening exercise is more beneficial to the body, mainly in the following aspects:

Clause. 1. The air quality in the evening is better than the air in the morning.

Clause. 2. All activities of the human body are affected by the biological clock.

In the 24 hours of a day, the highest and lowest points of human physical strength have a certain regularity, and the time when physical strength reaches the highest point is mostly in the evening; During this time, the sensitivity and adaptability of the person's limbs are at their peak, and the heart rate and blood pressure rise are the most stable.

Clause. 3. Evening workout and sleep time.

Shorter, the resulting fatigue can encourage exercisers to fall asleep faster.

Clause. Fourth, evening exercise is more suitable for mental workers, after a day of mental work many things exist in the mind, such as half an hour after dinner, stretch the waist, relax the spirit, can not only make the mind fresh, but also improve the sleep state, can be described as killing two birds with one stone.

Photosynthesis releases oxygen.

Carbon dioxide is released from respiration.

We often think that the morning is the best time of the day, and many people get up early in the morning just to get a little more fresh air and expel the exhaust fumes stored in the body all night. But in fact, the air in the morning is not fresh at all, then you may think that the air in the evening and evening is the best, haha, no, but on the contrary, according to the test shows that in the 24 hours of the day, the air quality in the morning, evening and evening is the worst, and the pollution is also the most serious, of which the pollution at 7 am and 7 pm has reached the peak, the air must be very bad, we must.

Studies have shown that in general, there are two peaks in air pollution every day, one before sunrise and one in the evening. Especially in winter, under the influence of cold and high pressure in the morning and evening, there is often a phenomenon of inverse temperature increase, that is, the upper temperature is high, while the surface temperature is low, and the atmospheric convection almost stops. Therefore, harmful pollutants on the ground cannot diffuse into the upper layers of the atmosphere and stay in the lower respiratory zone.

This phenomenon is particularly typical in residential areas with concentrated industrial concentrations or high-rise buildings, and on the sides of roads where cars are speeding by. At this time, the harmful gas should be 2-3 times higher than under normal conditions.

A healthy adult breathes 16-20 times a minute and inhales more than 10 cubic meters of air a day. When exercising, due to metabolic needs, the inhaled air is often 2-3 times that of the normal state. Therefore, the choice of environment and time during exercise is particularly important.

What time is the cleanest time for air? Experimental studies have shown that around 10 a.m. and 3 p.m. are the two relatively optimal periods every day. Therefore, we remind everyone to cherish this good time.

This is because exercising will not only relieve you from tension, but also allow you to breathe in high-quality fresh air.

Due to the ambient air quality in which everyone lives and works.

so also pay attention to changes in the air pollution index when exercising outdoors. If the air pollution index is too high for a period of time or in a certain area, you should adjust the exercise location.

In terms of the content of bacteria and dust in the air, it is the least in the morning;

When it comes to oxygen in the air, it is the most in the evening;

When it comes to air pollutants, 10 a.m. and 3 or 4 p.m. are the least.