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How to write a light haze investigation report

How to write a light smog investigation report? Let’s take a look at what the editor has to share today.

The light haze investigation report can be described from three aspects. The first is to describe the purpose of the investigation report, the second is to describe the specific process and data of the investigation, and the third is to describe the results of the investigation report. and analysis.

Light haze investigation report one:

Investigation background:

In the past week, a rare large-scale haze has enveloped China. There are 25 provinces and more than 100 large and medium-sized cities experiencing smog to varying degrees, covering nearly half of China's land. The Meteorological Observatory predicts that from last night to this morning, there will be heavy fog in central and western Jiangsu, central and eastern Anhui, central and northern Zhejiang, and northeastern Jiangxi. In some areas, there will be thick fog with visibility less than 500 meters. Last night, air pollution meteorological conditions in Jiangsu, central and eastern Anhui, central and northern Zhejiang, southern Shandong, and eastern Henan reached level 4 to 5, and locally reached level 6, which is not conducive to the spread of pollutants in the air. Most of the above areas have There is moderate haze, with severe haze in some areas in southwestern Jiangsu, northern Zhejiang, and southeastern Anhui.

Practice time: Winter vacation 2013

Practice location: Qixian Town, Shaoxing County, Zhejiang Province, China

Practitioner: Zhu Xiaona, Class 12, Grade 3

Practical content: Investigate the causes, current situation, hazards and government solutions to the increasingly serious haze weather in Shaoxing.

Practice method: Pay attention to the news media, visit relevant departments, ask experienced seniors to understand, observe and register yourself

1. What is "haze"

< p>Fog: When there is sufficient moisture, breeze and stable atmosphere, if the air close to the ground cools to a certain extent, the moisture in the air will condense into fine water droplets suspended in the air, reducing visibility at ground level. , this weather phenomenon is called fog. Haze: Refers to an unexplained turbidity caused by the suspension of large amounts of smoke, dust and other particles. Haze: Haze is a combination of fog and haze. Due to the deterioration of air quality, haze weather phenomena have increased and the hazards have worsened. Many areas in China incorporate the haze weather phenomenon into fog as a disastrous weather warning and forecast. Collectively referred to as "haze weather". PM2.5: PM2.5 refers to particulate matter in the atmosphere with a diameter less than or equal to 2.5 microns, also known as particulate matter that can enter the lungs. Although PM2.5 is only a small component of the earth's atmosphere, it has an important impact on air quality and visibility. PM2.5 has a small particle size and is rich in toxic and harmful substances. It stays in the atmosphere for a long time and is transported over a long distance, so it has a greater impact on human health and the quality of the atmospheric environment.

2. The harm of haze

1. Haze weather can easily cause asthma to relapse. Including asthma symptoms such as bronchial asthma, bronchitis, allergic rhinitis, variant cough, stuffiness, and shortness of breath. Every time people take a breath, they inhale about 500,000 particles deep into the lungs, but in polluted air, the amount of particles inhaled is 100 times more.

2. Haze weather is a "health killer" for patients with cardiovascular diseases, especially the elderly with respiratory diseases and cardiovascular diseases. It is best not to go out in foggy days, let alone morning exercise, otherwise it may induce the disease. , or even a heart attack, causing life-threatening consequences. Experts point out that the reason why foggy days are "dangerous days" for patients with cardiovascular disease is because when foggy, the air pressure is low and the oxygen content in the air decreases. People can easily feel chest tightness, and the wet and cold fog in the morning can also cause symptoms. Cold stimulation can easily lead to vasospasm, blood pressure fluctuations, increased heart load, etc. At the same time, some pathogens in the fog can cause headaches and even induce diseases such as high blood pressure and cerebral hemorrhage. Therefore, people with cardiovascular disease, especially the elderly and infirm, should not go out on foggy days, let alone morning exercises on foggy days, to avoid danger.

3. In fact, continued haze weather and declining air quality are not new phenomena this year. In recent years, every autumn and winter, especially after the beginning of winter, the central and eastern regions of the country have encountered similar situations from time to time. Although there are certain meteorological factors, the most important thing is the consequences of extensive and disorderly development. It should be noted that smog is not ordinary air pollution. It may pose a great threat to public life and health. According to official statistics, more than 4,000 people died in the London fog in 1952. According to analysis by environmental experts, haze is likely to replace Smoking has become the number one “killer” of lung cancer.

4. Haze days also have a serious impact on human cardiovascular and cerebrovascular diseases, which can hinder normal blood circulation, lead to cardiovascular disease, hypertension, coronary heart disease, cerebral hemorrhage, and may induce angina pectoris, myocardial infarction, Heart failure, etc., causing chronic bronchitis to cause pulmonary heart disease, etc. In addition, when the pressure is relatively low in dense fog, people will feel irritable and their blood pressure will naturally increase. On the other hand, the temperature is often lower in foggy days. Some patients with high blood pressure and coronary heart disease suddenly walk from warm indoors to cold outdoors. The blood vessels expand and contract with heat, which can also increase blood pressure, leading to stroke and myocardial infarction. Therefore, patients with cardiovascular and cerebrovascular diseases must take their medicines on time and deal with them carefully. Experts point out that persistent foggy days have an impact on people's psychology and body. Psychologically, foggy days can cause people to feel dull and depressed, and can stimulate or aggravate psychological depression. In addition, due to the weak light and low air pressure caused by foggy days, some people will feel lazy and depressed in foggy days.

4. China's Smog

CCTV's "News 1+1" reported on January 15 that most areas in central and eastern my country were shrouded in smog. As of 0:00 on the 14th, among the 74 monitoring cities across the country, the detection data of some monitoring stations in 33 cities exceeded 300, which means that the air quality in these cities has reached serious pollution. The haze weather has led to road controls, business suspensions, airport closures, and port suspensions, and has greatly affected citizens' work and life. Not only that, in hospitals in many places, the number of patients suffering from respiratory diseases has increased significantly, and physical education classes in some primary and secondary schools in Beijing have even been moved indoors. In this weather, many people hope that air purifiers and a wide variety of masks can bring some help. China News Network reported on January 13 that in recent days, the severe air pollution caused by haze weather in central and eastern China has attracted widespread attention from Hong Kong and Taiwan media and foreign media. Hong Kong's South China Morning Post described the dense smog encountered in Beijing as "suffocating" and the air quality pollution reaching "dangerous" levels. Recently, due to weak cold air, temperatures have risen in many places, and haze weather has been waiting for an opportunity to enter a large area. Most areas in central and eastern China have been affected, and heavy fog has caused serious air pollution in these areas. The national urban air quality real-time release platform of the China Environmental Monitoring Center shows that on the 12th, the air quality in Beijing, Hebei, Shandong and other places reached serious pollution, with the PM2.5 index approaching the maximum value. As of 0:00 on the 13th, the air volume in 33 of the 74 monitored cities had reached serious pollution, and the PM2.5 value in urban Beijing even approached 1,000. The Central Meteorological Observatory will continue to issue a yellow warning for heavy fog at 6:00 on the 13th: It is expected that from this morning to the morning, the Beijing-Tianjin area, central and southern Hebei, northeastern Henan, central and northern Jiangsu, Sichuan, western Chongqing, central and southern Hunan, southern Guizhou, and southeastern Yunnan There is fog with visibility less than 1,000 meters in central and northern Guangxi, and visibility in some areas is less than 200 meters.

5. How to prevent the harm caused by haze

Methods to prevent fog diseases:

1. Wear a mask when going out

If You can wear a mask when going out, which can effectively prevent dust particles from entering the body. Cotton masks are best because some people are allergic to non-woven fabrics, while most people are not allergic to cotton masks and they are easy to clean.

2. Eat a light diet and drink more water

In foggy days, you should choose foods that are light, easy to digest and rich in vitamins, drink more water, and eat more fresh vegetables and fruits. This will not only Supplementing various vitamins and inorganic salts can also moisten the lungs and remove dryness, eliminate phlegm and relieve cough, and strengthen the spleen and kidneys. Eat less irritating food and eat more pears, loquats, oranges, tangerines and other lung-clearing and phlegm-clearing foods.

3. Open windows less often in hazy weather

Many people are accustomed to opening windows for ventilation. But if the haze persists all day, should you open windows for ventilation or close doors and windows? Li Zhi pointed out that in hazy weather, it is not recommended to open windows in the morning and evening for ventilation. It is best to wait for the sun to come out before opening windows.

4. Supplement appropriate amounts of vitamin D

This season has a lot of fog and less sunshine. Due to insufficient ultraviolet exposure, the production of vitamin D in the human body is insufficient, and some people will suffer from laziness and depression. If necessary, you can add some vitamin D.

Causes of haze weather

1. The main factor is low atmospheric air pressure and stagnant air flow. Due to the stagnant air flow, tiny particles in the air gather and float in the air.

2. The ground is dusty and the air humidity is low. People and traffic on the ground stir up the dust.

3. Car exhaust is the main pollutant emission. In recent years, there have been more and more cars in cities, and the car exhaust is a factor in smog.

4. Secondary pollution caused by factories.

5. CO2 and other pollutants emitted by heating in winter.

6. Burn straw.

7. The emission of polluting particulate matter such as fireworks and firecrackers increases.

Data analysis summary

According to my survey results, most people are still concerned about and basically understand the recent haze weather, but very few people actually take protective measures.

Most people believe that haze weather has the greatest impact on their mood, followed by their health. When traveling, more people are still willing to choose walking or taking the bus. Compared with private cars, it is indeed too environmentally friendly. Similarly, when there is haze weather, there are still some people who choose not to go out or leave the second door, but they are just a minority.

Everyone has different opinions on the causes of haze weather, but most people believe that it is caused by human factors, just as there was a large number of straw burning phenomena some time ago. Many people believe that government intervention should be increased, such as limiting exhaust emissions on a daily basis. The focus of prevention and control should be on controlling particulate matter emissions. The first is industrial emissions. Heavy industrial enterprises need to be planned appropriately to achieve energy conservation, emission reduction, and clean emissions. Secondly, urban transportation planning and the development of public transportation are also important measures to reduce urban man-made pollutant emissions. Finally, the government and the media should strengthen the promotion of environmental protection knowledge and raise public attention to air pollution incidents.

So, what should we do as individuals? We should: don’t drive or drive less; try to take public transport; don’t smoke or smoke as little as possible; learn smog protection knowledge and publicize it to people around you; start from yourself , pay attention to energy conservation and environmental protection.

Summary

The occurrence of haze weather in various places is essentially a reminder that the environment's self-purification ability has reached a critical point. For the residents of the city, it is not only a warning to modern society for touching the bottom line of nature, but also a warning for human beings to infringe upon nature. Of course, it is still a test for urban residents to shoulder the responsibility of protecting the environment and maintaining the ecological consciousness of the earth. In the face of haze weather, what people need is a determination and belief in jointly reducing pollution, as well as changes in real life.

Only by controlling smog, eradicating air pollution and filling cities with fresh air can people live healthier and happier lives. It is urgent to build ecological civilization, protect the ecological environment, and build a beautiful home. Although the prevention and control of air pollution is a complex and comprehensive topic, and although we are facing an arduous battle, with the government's effective response, the active participation of enterprises, and the shared responsibility of all sectors of society, a fresh and beautiful ecologically civilized city can also will not be far from us.

Light haze survey report 2:

With the advent of the Spring Festival in the Year of the Monkey, Baoji has experienced frequent smog and haze weather, which not only affects all types of transportation by sea, land and air. As a result, many people were unable to go home for the New Year as scheduled, which also caused harm to people's health. There were many more patients in the hospital. So, what is the cause of air pollution? How to control this pollution? To this end, I conducted an investigation.

1. Investigation background

Haze weather is a product of serious deterioration of air quality. It is the accumulation of large amounts of dust, sulfuric acid, nitric acid, organic hydrocarbons and other particles in the air. In particular, PM2.5 content increases sharply, causing blurred visibility in a large space. "PM2.5" refers to particulate matter in the atmosphere with a diameter less than or equal to 2.5 microns, also known as particulate matter that can enter the lungs. PM2.5 has a small particle size and is rich in toxic and harmful substances. It stays in the atmosphere for a long time and is transported over a long distance. Therefore, it has a greater impact on human health and the quality of the atmospheric environment.

Currently, the central and eastern regions of the country are caught in severe haze and pollution. The Central Meteorological Observatory has upgraded the blue warning for heavy fog to a yellow warning, causing heavy fog from the northeast to the northwest, and from North China to the central part of the country, resulting in Huanghuai and Jiangnan. Regions have experienced widespread severe and serious pollution.

2. Purpose of the survey

To understand people’s attitudes towards haze weather, their understanding of haze weather, and to explore the warnings and practical problems caused by haze weather. And we will do our best to improve the current haze weather, create such a beautiful environment for ourselves, and make our own contribution to protecting the earth's ecological environment.

3. Survey process

Survey topic: haze weather

Survey target: ordinary people

Survey time: February 2014 8th

Investigation method: Take photos on site and check online

IV. Investigation results

Cause:

According to meteorological experts, during the Spring Festival The main reason for the formation of haze weather during this period is that the relative humidity of the air near the ground is relatively high; there is no obvious cold air activity, and the atmosphere is relatively stable; the sky is clear and less cloudy, which is conducive to radiation cooling at night, saturating the air with relatively high humidity near the ground Condensation forms fog. In addition, during the Spring Festival, the frequent use of motor vehicles and the increase in emissions of polluting particulate matter such as fireworks and firecrackers can easily act as condensation nuclei to accelerate the generation of smog. The two interact to quickly form haze weather.

Hazards:

1. Harm to the human body: Because there are a large number of toxic and harmful small particles mixed in the haze, when people breathe, they enter the respiratory tract and lungs with the air. , mild cases will introduce diseases such as tracheitis and pneumonia, and severe cases will lead to more serious diseases.

2. Harm to production and life: Low visibility in haze weather affects various transportation industries such as aviation, railways, shipping, and highways. It can easily lead to traffic safety accidents and disrupt normal production and life. order. At the same time, it is corrosive to solid objects such as buildings and vehicles.

Prevention and control:

According to data, so far, the generation of fog cannot be controlled by human power. This is a natural phenomenon. As long as we find ways to control the generation of various small particles, there will be only fog but no haze. Therefore, the focus of prevention and control should be on controlling particulate matter emissions. The first is industrial emissions. Heavy industrial enterprises need to be planned appropriately to achieve energy conservation, emission reduction, and clean emissions. Secondly, urban transportation planning and development of public transportation are also important measures to reduce urban man-made pollutant emissions. Finally, the government and the media should strengthen the publicity of environmental protection knowledge and raise public attention to air pollution incidents.

So, as individuals we should do the following: not drive or drive less; try to take public transport; do not smoke or smoke as little as possible; learn smog protection knowledge and publicize it to people around you; Start by yourself and pay attention to energy conservation and environmental protection.

5. Investigation and Initiative The occurrence of haze weather in various places is essentially a reminder that the environment's self-purification ability has reached a critical point. For the residents of the city, it is not only a warning to modern society for touching the bottom line of nature, but also a warning to human beings for infringing upon nature.

Of course, it is still a test for urban residents to shoulder the responsibility of protecting the environment and maintaining the ecological consciousness of the earth. In the face of haze weather, what people need is a determination and belief in jointly reducing pollution, as well as changes in real life.

Light haze survey report three:

Since this year, haze weather has continued to invade China, and the problem of large-scale haze pollution has become increasingly prominent. There have been 25 provinces and 100 cities across the country. Smog and haze weather has occurred to varying degrees in many large and medium-sized cities, which not only adversely affects sea, land and air transportation, but also causes serious harm to people's health. So, what is haze? What causes haze air pollution? How to reduce, control and govern this air pollution? The district environmental monitoring station has conducted a series of explorations and investigations on haze weather. The specific investigation results are now reported as follows :

1. The basic concept of smog

Smog is the collective name for fog and haze. Sulfur dioxide, nitrogen oxides and respirable particulate matter are the main components of smog. The first two are gaseous pollutants, and the last particulate matter is the culprit that aggravates haze weather pollution. They combine with fog, making the sky It instantly became gloomy and gray.

The difference between fog and haze is very big. Fog is an aerosol system composed of a large number of tiny water droplets or ice crystals suspended in the air near the ground. It is the product of condensation of water vapor in the air near the ground. The presence of fog reduces air transparency and worsens visibility. When fog forms, the atmospheric humidity is saturated. Because the light scattered by fog composed of liquid water or ice crystals has little relationship with wavelength, the fog looks milky white or bluish white and gray. Haze is composed of dust, sulfuric acid, nitric acid, organic hydrocarbons and other particles in the air. It can also cloud the atmosphere, blur vision and cause visibility to deteriorate. It is defined in the "Surface Meteorological Observation Standards" as: "A large number of extremely fine dry dust particles float evenly in the air, causing the air with a horizontal visibility of less than 10 kilometers to be generally turbid.

Haze and fog The difference is that the relative humidity is not large when haze occurs, while the relative humidity in fog is generally saturated. When the relative humidity is less than 80%, the visibility deterioration caused by blurred vision is caused by haze. When the relative humidity is greater than 90%, the atmosphere is saturated. The deterioration of visibility caused by turbidity and blurred vision is caused by fog. The deterioration of visibility caused by atmospheric turbidity when the relative humidity is between 80-90% is caused by a mixture of fog and haze, but its main components are Haze.

2. Causes of haze

The main reasons for the recent frequent and severe haze weather are as follows: (1) On the one hand, the natural environment. The cold air activity affecting our country is weaker than usual, with low wind speed and weak wind force, and the atmosphere is relatively stable. The frequency of stable weather is significantly higher in most areas, especially in North China, which is as high as 64.5%, the highest in the past 10 years. Stable weather causes pollutants to accumulate near the ground, resulting in frequent haze weather. On the other hand, due to the high background concentration of aerosols in winter in my country, the relative humidity of the air near the ground in the region is relatively high. When the cold air is weak and the water vapor conditions are relatively high, Under good large-scale atmospheric circulation conditions, there are calm or light winds at low altitudes near the ground. Due to the large-scale calm weather, the superposition of sand and dust, southerly airflow, high humidity, and water vapor cause dry and fine particles to rapidly expand, which also promotes the formation of (2) Causes of environmental pollution. PM2.5 is the main culprit of haze weather. Large vehicles using diesel are "heavy offenders" of PM2.5 emissions, including large buses and shuttle buses of various units. and large transport trucks, etc. Although small cars using gasoline emit gaseous pollutants, such as nitrogen oxides, they can easily be converted into particulate pollutants in foggy weather, aggravating the haze and further catalyzing the haze weather. Another culprit of smog formation is sulfur dioxide and organic matter produced by coal burning in winter, waste gas emitted from industrial production, large amounts of auto repair spray paint, waste gas emitted from the combustion of building materials production kilns, and construction sites and roads. The dust generated by traffic reacts with these suspended pollutants in the calm air and turns into large particles, which also contributes to the formation of haze weather. (3) The geographical environment causes the buildings to be built higher and higher. The blocking and friction effects significantly weaken the wind flowing through the urban area, causing the phenomenon of quiet wind to increase, resulting in a temperature inversion phenomenon in the vertical direction in which the temperature at high altitude is higher than that at low altitude. The inversion layer is like a pot. The cover covers the city, which restricts the vertical movement of air at low altitudes in the atmosphere. The air mobility in the horizontal and vertical directions is very small, and the atmospheric diffusion conditions are very poor. It is controlled by the static and stable weather near the ground, and the dust source and movement are poor. Forming suspended particles in the air, they are difficult to float to high altitudes and are blocked at low altitudes and near the ground. Under their control, no matter the size of the city, the pollutant emissions from the energy consumption required for local transportation, life, and production are all at low altitudes. It accumulates continuously and eventually gathers in a certain spatial range, where it condenses with water molecules to form haze. At the same time, due to the high humidity and large water vapor in haze weather, fog droplets provide a place for adsorption and reaction to accelerate the conversion of reactive gaseous pollutants into liquid particulate matter components. At the same time, particulate matter can also easily act as condensation nuclei to accelerate the generation of haze. , the two interact to quickly form pollution.

(4) Reasons for pursuing economic development. Under the guidance of the idea that development is the last word, our country has focused on economic construction and has long regarded gross domestic product (GDP) as the standard for measuring everything.

There is nothing wrong with pursuing GDP per se, the fault lies in being blind. What took Western countries hundreds of years to accomplish, we have to accomplish in decades. Little do we know that we are also using decades to create hundreds of years of pollution. In addition, all countries have regulations for the introduction of foreign investment, but my country does not reject anyone who comes, and the more the better. The result is that China has become the world's factory, working for well-known companies around the world, and then giving away the profits to others. Keeping pollution to yourself not only wastes precious resources but also pollutes the living environment. At the same time, in order to expand domestic demand, we vigorously develop the automobile industry and encourage Chinese people to purchase _ without considering the national conditions of our country's large population and the carrying capacity of roads, and ignore the consequences of so much automobile exhaust on air pollution. According to experts, automobile exhaust emissions have accounted for 1% of PM2 20%-25% of .5. Chinese people want convenience, companies want to make money, and the country wants GDP. Of course, the consequences of pollution not only lead to the generation of smog, but also lead to the deterioration of the environment.

3. The harm of smog (1) Harmful to human health. The composition of haze is very complex, including hundreds of atmospheric particulate matter. Among them, aerosol particles with a diameter of less than 10 microns are mainly harmful to human health. They can directly enter and adhere to the upper and lower respiratory tract and lung lobes of the human body, causing rhinitis, bronchitis and other diseases. Long-term exposure to this environment can also induce lung cancer. In addition to causing cancer, smog is also a heart killer. Studies have shown that when air pollutants increase, the mortality rate of cardiovascular patients will increase. Particulate pollutants in hazy days can not only cause myocardial infarction, but also cause myocardial ischemia or damage. Common diseases such as chronic bronchitis, emphysema, asthma, bronchitis, rhinitis, upper and lower respiratory tract infections, etc. Our country has focused on economic construction and has long regarded gross domestic product (GDP) as the standard for measuring everything. There is nothing wrong with pursuing GDP per se, the fault lies in being blind. What took Western countries hundreds of years to accomplish, we have to accomplish in decades. Little do we know that we are also using decades to create hundreds of years of pollution. In addition, all countries have regulations for the introduction of foreign investment, but my country does not reject anyone who comes, and the more the better. The result is that China has become the world's factory, working for well-known companies around the world, and then giving away the profits to others. Keeping pollution to yourself not only wastes precious resources but also pollutes the living environment. At the same time, in order to expand domestic demand, we vigorously develop the automobile industry and encourage Chinese people to purchase _ without considering the national conditions of our country's large population and the carrying capacity of roads, and ignore the consequences of so much automobile exhaust on air pollution. According to experts, automobile exhaust emissions have accounted for 1% of PM2 20%-25% of .5. Chinese people want convenience, companies want to make money, and the country wants GDP. Of course, the consequences of pollution not only lead to the generation of smog, but also lead to the deterioration of the environment.

3. The harm of smog

(1) Harmful to human health. The composition of haze is very complex, including hundreds of atmospheric particulate matter. Among them, aerosol particles with a diameter of less than 10 microns are mainly harmful to human health. They can directly enter and adhere to the upper and lower respiratory tract and lung lobes of the human body, causing rhinitis, bronchitis and other diseases. Long-term exposure to this environment can also induce lung cancer. In addition to causing cancer, smog is also a heart killer. Studies have shown that when air pollutants increase, the mortality rate of cardiovascular patients will increase. Particulate pollutants in hazy days can not only cause myocardial infarction, but also cause myocardial ischemia or damage. Common respiratory diseases such as chronic bronchitis, emphysema, asthma, bronchitis, rhinitis, and upper and lower respiratory tract infections may also be acutely triggered by haze days. Haze is harmful to the human body when inhaled into the human respiratory tract. Severe cases of long-term inhalation can lead to death. Haze has a greater impact on newborn health. A recent large-scale international study confirmed that pregnant women who are exposed to certain higher levels of air pollutants are more likely to give birth to underweight babies, and babies who are born with low birth weight are prone to increased weight. The risk of childhood mortality and disease is closely related to the baby's future development and health. It goes without saying that air pollution is seriously affecting human health.

(2) Affecting smooth traffic. The most significant impact of haze weather on traffic is the reduction of vehicle speeds, flight delays, and train delays, which increase travel time and delays for travelers. Especially on roads with large traffic volumes, the reduction in the actual capacity of highway facilities may lead to more serious traffic congestion. In some areas with developed road networks and high traffic intensity, this congestion will cause problems in the operation of regional road networks. Blockage or even paralysis. According to relevant statistics from the Ministry of Transport, approximately one-quarter to one-third of the road blockage incidents reported by local governments in my country every year are caused by heavy fog. Heavy foggy weather is also one of the main causes of road traffic accidents. According to the road traffic accident statistics report of the Ministry of Public Security, about 10% of traffic accidents in my country every year are directly related to severe weather such as rain, snow, fog, etc. Due to the high technical level, complete facilities, controlled access and other characteristics of highways, vehicles travel at high speeds. Therefore, highway traffic accidents induced by heavy fog are often catastrophic and cause heavy casualties. According to statistics, heavy fog has become the number one killer of serious traffic accidents leading to serial collisions on highways, and there are many cases in this regard. This is also the reason why traffic control measures such as speed limits and even road closures must be adopted once fog occurs on highways.

(3) Affect the development of agriculture and breeding industry.

The impact of haze on agriculture is multifaceted. Pollution particles are suspended in the air, absorbing and reflecting the heat from solar radiation reaching the ground, causing green plants to lose the light they need, reducing photosynthesis and affecting their growth and development. Continuous foggy weather will cause insufficient sunshine and easily induce various diseases. Affected by weather pollution, the breeding industry will also be affected. During haze weather, livestock and poultry often suffer from loss of appetite and a significantly increased incidence of respiratory diseases. The main reason is the unfavorable diffusion conditions caused by "quiet weather" Exacerbating the deterioration of the environment inside the house, calm weather is not conducive to the diffusion of harmful gases in the house and the exchange of fresh outdoor air, causing ammonia, odor, carbon dioxide, etc. to quickly accumulate in the house, forming a mixture of floating dust, minerals and moisture, which provides a good environment for microorganisms to adhere. It provides good conditions for growth and reproduction.

(4) Causes erratic changes in temperature. Continuous haze weather will cause insufficient sunshine and drop in temperature, which will affect the rise in temperature in a short period of time, promote temperature warming, and make the weather more unpredictable.

The above is what the editor shared today, I hope it can help everyone.