Sources of air pollution

From the school bench, everyone knows that in the natural state, atmospheric air contains a fairly wide range of chemical elements and compounds. These are all kinds of gaseous compounds, water that is in the atmosphere in various aggregate states, dust formations, plant spores and much more. In addition, in the atmosphere find themselves shelter and numerous solids, as well as aerosol compounds.

As sources of atmospheric pollution, aerosols in the atmosphere are formed by volcanic materials, some of them are of a cosmic nature. However, the main sources are the production and economic activities of man. A huge amount of atmospheric aerosols is formed as a result of the accumulation of products from the burning of forests, prairies, steppes, industrial and residential objects. Such a list, of course, makes it possible to classify all sources of pollution on natural and those caused by human activities. They are also called anthropogenic sources of atmospheric pollution.

If we are talking about natural sources, we should, first of all, take into account those natural and climatic phenomena that affect the transparency of the Earth's atmosphere. For example, a significant part of such pollution is formed by dust storms and tornadoes, which often occur in semi-desert regions of the globe. During such storms, huge masses of dust rise into the air, taking with them the so-called airplankton. In addition, the scientists felt that every year more than two to three million tons of cosmic dust enters our atmosphere. A significant "polluting" potential of natural origin are volcanic eruptions. It is known that during the eruption of such a volcano Krakatoa in Indonesia, the eruption substances rose together with volcanic dust to a height of more than 24 km and were fixed in the atmospheric air in this region for five years.

However, if we analyze the sources of atmospheric pollution, we must admit that all the above-mentioned natural and climatic phenomena, taken together, are much smaller than those that enter the atmosphere due to economic activities of people.

The industrial revolution that has been completed and continues with increasing intensity, regardless of its form and content, has not led to a reduction in deforestation and plowing of land. On Earth, there are huge erosion of soils, deflation, which act as the main sources of pollution of anthropogenic atmosphere. To trace the dynamics of the atmospheric disaster, the direct observers, and often the direct organizers of which, we are all, it is possible by the example of such data. During the last century, the volume of dust deposits on glaciers has increased more than 20 times.

Where do these deposits come from? Each schoolboy will answer that these are the products of various harmful compounds and substances precipitating from the air. At the present stage, when energy problems have escalated, the process of forming such deposits has become even more intense.

In addition, it is important to take into account that the economic activities of man on the planet are extremely unevenly distributed. Consequently, sources of air pollution are found in different parts of the earth. The harmful emissions that come from the most powerful industrial and industrial zones form the so-called "cumulative effect of pollution", the essence of which is that in some regions the state of atmospheric air now poses an immediate threat to the life of not only an individual but also whole populations Nature.

In a word, we observe two main manifestations of the effect of pollution factors of the atmospheric environment. On the one hand, there is a deterioration in the general state of the atmosphere, which is equally distributed throughout the planet. Another phenomenon is the formation of zones of increased environmental risk, where living is already a threat to people's lives. It is these factors that have made the problem of atmospheric air pollution refer to the global problems of our time. This, in turn, facilitates the transformation of this problem from technological to philosophical. As part of this approach, sources of atmospheric pollution should be subject to global environmental control, which should not be limited to state and regional borders.