How much harm does fire cause to people?

The fire burns buildings, production equipment, public facilities, vehicles, open-air warehouses, electrical equipment, etc., which increases the complexity of the fire. Fires can cause a variety of injuries and, in severe cases, can lead to immediate death. In the fire, because they could not escape, they were directly burned or burned to death by the fire.

Suffocation caused by smoke is the main cause of fire injuries and deaths.

There is a large amount of carbon monoxide and other harmful gases in the fire smoke, which can easily cause suffocation after inhalation. Smoke spreads more than 5 times faster than fire, and its amount exceeds 5 6 times that of fire. The direction in which the smoke flows is the way the fire spreads, and the extremely hot smoke can form a fire in less than two minutes, and it can also pose a threat to people who are far away.

In addition, due to the appearance of smoke, the sight of people is seriously obstructed, and the visibility of people is reduced. Under normal circumstances, as long as a person's field of vision is reduced to less than 3 meters, it is unlikely that they will be able to escape from the fire.

Smoke in a fire is very harmful, choking by smoke is 4 to 5 times more than burning, and the main cause of death by smoke is carbon monoxide poisoning. In the air containing carbon monoxide with a concentration of 1 3, a person will lose consciousness when inhaling two or three breaths, and breathing for 1 3 minutes will lead to death. The flue gas produced by the burning of commonly used building wood has a carbon monoxide content of up to 2 5.

In addition, the smoke from the fire contains a lot of carbon dioxide. Under normal circumstances, the volume of carbon dioxide in the air accounts for about o 06, when it reaches 2, the person will feel difficult to breathe, and when it reaches 6 7, the person will suffocate to death. In addition, there are some materials, such as polyvinyl chloride materials and fibers such as nylon, wool, and silk, which can produce highly toxic gases when burned, which is a greater threat to people.

Main. Economy. Harm. Life. Harm.

(1) Fire can cause heavy direct property damage.

(2) Indirect property damage caused by fire. (3) The fire will cause a large number of people**. (4) Fire will cause damage to the ecological balance.

The three elements of fire:The three elements of fire are combustibles, combustibles, and ignition sources. The hazards of fire accidents are extremely serious.

1. Combustibles: any substances that can be burned with oxygen or oxidants in the air, such as combustible solid gases and liquids.

2. Combustibles: any substance that can help support and cause combustion, such as air oxygen oxidants.

3. Ignition source: all thermal energy that causes the combustion of combustible substances, sparks, electric sparks, electrostatic discharges, lightning, and spontaneous combustion of concentrated chemicals from open flame burning objects.

No matter what time of the day, fire is a topic of great concern to society. Once a fire occurs, the harm it brings to us is often unimaginable, so it is necessary to do a good job of fire prevention in daily life. Hazards from fire:

(1) Fire can cause heavy direct property damage.

2) The indirect property losses caused by fires are more serious, and all walks of life in modern society are closely connected, which affects the whole body. In the event of a serious or extraordinarily large fire, the indirect property losses caused are often dozens of times the direct property losses.

(3) The fire will cause a large number of people**.

(4) Fire will cause damage to the ecological balance.

Fire not only has four major hazards, but also in countless fire scenes and cases, the harm to our lives and property is often distressing. During the winter season, it is necessary to take precautions against fire.

There are three types of disasters caused by fires:

1. Destroying property is easy to cause huge property losses.

2. Mutilation of human life.

3. Destroy the ecological balance.

First, many combustible materials used in buildings produce high temperature and high heat when burning, causing serious injury to people's bodies, and even causing shock and death.

The second is the toxic gases such as carbon monoxide released during the combustion of combustible materials in the building, which will cause symptoms such as breathing difficulties, headaches, nausea, and nervous system disorders after inhalation.

Fire. Refers to disasters caused by uncontrolled burning in time or space. In the new standard, fire is defined as uncontrolled combustion in time or space.

Among all kinds of disasters, fire is one of the main disasters that most frequently and universally threatens public safety and social development.

Fire is a very harmful disaster, some of which are deliberately man-made, and some of which are caused by human negligence. If the fire is not extinguished in time, once it spreads and develops, it will cause catastrophic burning, which will cause huge casualties, property losses, environmental damage and so on.

Fire hazard one, personnel **. Not only are the lives of the people trapped at the fire scene in serious danger, but the firefighters who are in disaster relief are also using their lives to extinguish the fire and rescue the trapped people. It can also cause physical and mental pain to those who have experienced fires.

The second hazard of fire is property damage, including direct property and indirect property. Direct property is the property, money, goods, etc., that have been burned down; Indirect property is generally worth as much as ten times the value of direct property.

The third hazard of fire is the great damage to the environment, forest fire is the most vivid example, and it will also destroy the ecological balance.

The hazards caused by fires include loss of people, property, and adverse socio-political impacts. Fires not only destroy material property, cause chaos in social order and damage to ecological balance, but also directly or indirectly endanger lives.

In a fire, trapped people should have a good psychological quality, stay calm, do not panic, do not act blindly, and choose the correct escape method. It must be noted that the temperature at the scene of the fire is very alarming, and the smoke can block people's vision, so in this case, it is even more important to stay calm and not panic.

Fire, as a man-made disaster, refers to a catastrophic combustion phenomenon that causes losses to people's lives and property due to the uncontrolled spread and development of fire sources.

Fire is also an ultimate disaster, and any other disaster can eventually lead to a fire.

Fires can burn the material wealth created by human beings through hard work, turn factories, warehouses, towns, villages and a large number of means of production and subsistence into ashes, and affect the social and economic development and people's normal life to a certain extent.

Fires also pollute the atmosphere and damage the ecological environment. Not only does the fire put some people in limbo, it also devastates lives, takes the lives and health of many people, and causes physical and mental suffering that will not be erased.

In the long history of human development, fire has burned out the history of Ru Mao drinking blood; Fire, igniting the splendor of modern society. As the legend goes, fire is a "god" with a dual personality. Fire brings civilizational progress, light, and warmth to mankind.

However, sometimes it is a friend of humanity, and sometimes it is an enemy of humanity. If the fire is out of control, it will cause disaster to mankind.

Fire – refers to a disaster caused by uncontrolled burning in time and space.

Combustion - is an oxidative exothermic reaction between a combustible substance and an oxidizing agent, usually accompanied by light, smoke, or flame.

The three elements of combustion: combustibles, combustibles, and ignition sources. For flame combustion, there must be an element of free radical chain reaction.

The main measures to extinguish the fire are: control of combustibles, reduction of oxygen, reduction of temperature, chemical inhibition (for chain reactions).