What are the hazards of fog and what are the benefits of fog

Normal fog is not too harmful to the body, but if there are some harmful gases in the object, there is corresponding damage to the human lungs and trachea. Especially in hazy weather, pay attention to wearing masks.

On foggy days, there is no wind and air circulation, and pollutants that are originally suspended in the air will take the opportunity to enter the human respiratory tract. Some people with chronic respiratory diseases will cause reactions, especially asthma, bronchitis, and cor pulmonale, and they should pay more attention to the health problems of foggy days.

In addition, the muscles are more tense in foggy days, and muscle strain is prone to occur, and some people who have lumbar muscle strain and neck muscle strain are prone to old diseases**, so they should avoid staying outdoors for too long.

Fog is poisonous.

According to scientists, the proportion of harmful substances such as various acids, alkalis, salts, amines, phenols, dust, and pathogenic microorganisms in the fog droplets is dozens of times higher than that of ordinary atmospheric water droplets.

The harm of this pollutant to the human body is most significant in the respiratory tract. People should reduce going out in foggy weather, especially those with allergic diseases or pneumonia, lung cancer and other diseases, because it may cause poor breathing, and in severe cases, it can even cause death, so it is still necessary to pay attention to the body.

Smog not only brings inconvenience to people's lives, but also brings great harm to people's health. Studies have shown that the harmful substances in smog can damage the nervous system, cardiovascular system, respiratory system, and endocrine system.

1. Hurt lungs. Haze weather leads to the weakening of ultraviolet rays near the surface, which can easily increase the activity of germs in the air, and fine particulate matter will "carry" bacteria and viruses to the depths of the respiratory system, causing infection.

2. Hurt blood vessels. In hazy days, there are many pollutants in the air, coupled with low air pressure, which can easily induce acute attacks of cardiovascular diseases.

3. Sadness. Particulate pollutants in haze days can not only cause myocardial infarction, but also cause myocardial ischemia or injury, and heart disease patients will aggravate their condition on hazy days, such as heart failure patients with difficulty breathing or shortness of breath, heart failure will be more severe.

4. Injury**. In a polluted environment, there may be symptoms such as acne, allergies, and blackheads.

5. Brain-wrenching. Long-term exposure to smog can cause damage to our memories and accelerate brain aging, making us more likely to experience symptoms of anxiety and depression.

Fog is harmless in general, but if the air contains some harmful gases, the fog formed by combining with water vapor will be harmful.

When the air near the ground cools to a certain level, the water vapor in the air will condense into fine water droplets and suspend in the air, reducing the visibility at the ground level, this weather phenomenon is called fog. Fog is more common in spring from February to April. Whenever the visibility in the atmosphere is less than 1 km due to the condensation of suspended water vapor, meteorology calls this weather phenomenon fog.

Conditions for fog formation: one is cooling, the other is humidification, increasing the water vapor content. The types of fog are radiation fog, advection fog, mixed fog, evaporation fog, and smoke.

Fog is formed by the condensation of water vapor at low altitude in the air, and the toxic is the fog nucleus in it, and after the combination of automobile exhaust, it damages people's mouth, eyes and other parts.

Fog is not poisonous.

Fog is produced by the adsorption of water vapor by dust in the air of a certain size, because there is water, so it can be some hydrophilic toxic substances dissolved into small fog droplets, becoming toxic fog, which can only be said to be a carrier.

The fog itself is non-toxic and harmless, if there is fog when the harmful substances leak, it will make the harmful gases entrapped in the fog, which will cause harm to the human body.

the necessary conditions for the formation of fog; 1. There is a lot of water vapor on the surface. 2. The temperature is low enough. 3. The air pressure is relatively low. 4. There is no wind. These conditions determine that the smoke and dust on the surface are mixed with the fog vapor and pose a hazard to the human body.

The formation of fog is the large amount of water in the air, coupled with the condensation of fine dust, to form fog, so it is said that it is not toxic, but exercise on foggy days is still harmful to the respiratory system.

Fog is formed by water vapor condensation, condensation needs to have a condensation nucleus, dust in the air or something provides conditions for water vapor condensation, fog even if it is not toxic but also contains dust, it is also polluted!

Fog itself is not poisonous, fog is clouds at low altitudes, and the main component is water vapor. It's just that foggy days are not conducive to the diffusion of pollutants in the air, and the water vapor in the fog is easy to absorb a large number of pollutants, which reduces the air quality and is harmful to the human body after inhalation.

There are also some chemicals that can also produce fog in certain environments, such as "acid mist" when HCL gas meets air, and the vast majority of the fog produced by this situation is toxic.

Fog is a phenomenon in which visibility is reduced to a certain extent due to a large number of small water droplets or Xiaoice crystals floating in the air layer near the surface. In real life, fog and people are very closely related. The heavy fog has a serious impact on land and air traffic.

According to the statistics of the civil aviation department, about 13% of flights fail to leave on time every year, of which about 54% are due to weather, and fog and low visibility are the most common weather reasons.

In addition, the sea fog in the coastal areas has more advantages and disadvantages for the local area. Sea fog not only affects navigation, but also brings many disadvantages to marine aquaculture and agricultural production. If the sea fog reduces the sunshine and the transparency of the seawater for a long time, it is easy to reduce the yield of kelp and other aquaculture products and even rot.

Wheat flowering and ripening can cause rust if there is a prolonged sea fog. Because the condensation nuclei in the sea fog are mostly salt grains, various crops can be damaged by saltiness. That's why shelterbelts are planted along the coasts of many countries to filter out sea fog and protect crops from farmland close to the ocean.

However, fog in the interior can still be beneficial in alleviating crop drought, and fog at night in autumn and winter can slow down the drop in ground temperature and reduce the occurrence of frost. In addition, the "famous tea in the high mountains" is mainly due to the fact that there are many clouds and mist in the high mountains, and the temperature changes slowly, so that the growth of tea leaves slows down, and people can pick them in time, so the leaves are tender and the color is clear and mellow. Of course, the humid and shady climate with cloudy fog is also conducive to the growth of many precious Chinese herbal medicines; Many of the natural wonders have also become unique tourist resources.

Poets write poems, painters paint, no one knows about crimes, calm the air, have a car accident, have an effect on tea, because of the road closure to go home in a daze and not go to work, no one says about you when you are late for work.

There is no benefit, the fog contains a lot of chemicals that are harmful to the human body.

The good thing is that it can captivate people's eyes.

Maybe the only benefit is to be famous

For example: London (Fog City).

Affects the movement patterns of people who exercise in the morning.

The benefits are not many, and there are a lot of airborne impurities in it.

In our daily lives, we often encounter this phenomenon: the condensation of water vapor in the air and the formation of tiny water droplets suspended in the air, which reduces visibility at ground level, this weather phenomenon is called fog in meteorology. Only when the air in the lower levels contains a lot of moisture, but when the temperature drops sharply at night, the moisture condenses into fog.

There is a folk saying: "The fog is thick in the morning, and the weather will be sunny for a long time." In the morning the ground was covered with fog, despite the drying of rice.

People often see fog and often say that "ten fogs and nine sunshines". Fog is actually formed by small water droplets in the air attached to the dust in the air, so the appearance of dense fog means that there is more dust in the air, which is harmful to our human health. For example, exercising on foggy days is a bit more than worth the cost.

Because the pollutants in the air combine with the water vapor in the air, they will become less likely to diffuse and settle, so that most of the pollutants accumulate at the height of people's frequent activities. As a result, air pollution in foggy days is much worse than usual. Another reason is that the particles that make up the fog nucleus are easily inhaled by the human body and are easy to stay in the human body, and because the large amount of air inhaled during exercise in foggy days is much more than usual, this further aggravates the damage of harmful substances to the human body.

Therefore, people should reduce the time of outdoor activities in foggy weather, even when outdoors, remember to wear scarves and masks to protect the throat, joints and other parts, and the elderly, children and other weak people should focus on protection. Fog not only has a serious impact on our human health, but also on road traffic safety. Due to the greatly reduced visibility, many modes of transport are not functional.

Such as vehicle speed limits, ship navigation restrictions, aircraft grounding, and so on. Therefore, fog often brings inconvenience to our daily life, here to remind the majority of friends to pay attention to listen to the weather forecast, timely understand the meteorological information, and take precautions in advance.

Hazards of fog:

1. Heavy fog seriously reduces visibility and affects traffic, so that airports are closed, highways are blocked, vehicles are slow, ships are suspended, trains are delayed, and traffic accidents are easily caused, especially on highways.

2. The dense fog does not disperse for several days and the air humidity is high, which can cause short circuit and transformer failure of the high-voltage power supply line due to "pollution flashover", causing power outage accidents, especially the polluted air contains a large number of charged ions.

3. Heavy fog aggravates air pollution, which will affect the health of the elderly, children and the infirm, and cause or aggravate respiratory diseases and cardiovascular diseases.

Causes of fog:

Fog is formed by the condensation of water vapor in the air when the temperature drops. It occurs when the water vapour content of the atmosphere reaches saturation and there must be enough condensation nuclei present. In autumn and winter, the night is long and the heat dissipates quickly, making it easier to form fog.

Fog also often forms in summer when the humidity is high after the rains. When the ground is wet, on clear, breezy or windless weather, the radiation fog formed by strong radiative cooling at night will dissipate quickly after sunrise.