Carbon dioxide is found almost everywhere around us. It is a chemical compound that does not burn, stops the combustion process and makes it impossible to breathe. However, in small quantities, it is always present in the environment, without causing any harm. Consider what types of carbon dioxide are based on the places of its content and the method of origin.
What is carbon dioxide?
This gas is part of the natural composition of the Earth’s atmosphere. Belongs to the category of greenhouse, that is, it contributes to the retention of heat near the surface of the planet. It has neither color nor smell, which makes it difficult to feel excessive concentration in time. Meanwhile, in the presence of 10% or more carbon dioxide in the air, difficulty in breathing begins, up to death.
However, carbon dioxide is widely used in industry. For example, it is used to make soda, sugar, beer, soda and other food products. An interesting application is the creation of “dry ice”. This is called carbon dioxide, cooled to a very low temperature. At the same time, it passes into a solid state, so that it can be compressed into briquettes. “Dry ice” is used to quickly cool food.
Where does carbon dioxide come from?
This type of gas is actively formed as a result of chemical processes in the Earth’s thickness. It is able to escape through cracks and faults in the earth’s crust, which poses a great danger to workers in the mines of the mining industry. As a rule, carbon dioxide is almost always present in the mine air in an increased amount.
In some types of mine workings, such as coal and potash deposits, gas can accumulate at a high rate. Increased concentration leads to a deterioration in wellbeing and suffocation, so the maximum value should not exceed 1% of the total volume of air in the mine.
Industry and transport
One of the largest sources of carbon dioxide formation is various factories. Industrial enterprises during the implementation of technological processes produce it in huge quantities, throwing it into the atmosphere. Transport has the same effect. In the rich composition of exhaust gases, there is also carbon dioxide gas. At the same time, the planet introduces a large share of his emissions into the atmosphere of the planet. Supporting transport is in second place. The greatest concentration is created over large cities, which have not only a large number of cars, but also protracted “traffic jams”.
Almost all living creatures of the planet, when exhausted, release carbon dioxide. It is formed as a result of chemical metabolic processes in the lungs and tissues. This is the number of the planet, even taking into account billions of creatures, very insignificant. However, there are circumstances when the release of carbon dioxide with breathing must be remembered.
First of all, these are closed spaces, rooms, audiences, elevators, etc.D. When accumulating enough people in a limited territory, stuffiness occurs quite quickly. It is a disadvantage of oxygen due to the fact that it is replaced by exhausted carbon dioxide, which is unsuitable for breathing. To avoid this, it is necessary to carry out natural or forced ventilation in order to introduce new air from the street. Ventilation of the premises can be carried out both using ordinary windows and complex systems with a duct system and pumping turbines.