Ways to reduce the environmental and epidemiological risks of large cities
Large cities, as places of large crowds of people, bear certain pressures on the environment, and also create certain risks and pressures within the human community itself.
There is a continuous increase in population density in the world that seeks to adapt the environment for its own needs.
All this, in turn, affects the health of people, leads to an increase in the incidence of infectious diseases, allergies, skin diseases, diseases of the musculoskeletal system, cardiovascular, cancer.
Upon careful consideration of this problem, there is a direct and indisputable link between the increase in incidence and pollution of the environment, atmospheric air, drinking water, agricultural products, etc.
It is not easy for humanity to confront this challenge, although it is in the process of continuously searching for solutions to minimize these destructive processes.
It should be borne in mind that the direct cause of all, without exception, the diseases listed above, is the presence of unfavorable environmental conditions.
It is impossible not to agree that the presence of large areas with greenery can significantly improve the ecological situation of large cities.
To combat these challenges, very productive and effective, are measures to expand the existing and create new park areas and arrays.
Coniferous representatives of the plant world are known and most promising for these purposes.
Juniper is a genus of evergreen coniferous shrubs and cypress trees.
Where the juniper is planted, the air is much cleaner, per day one hectare of juniper produces 30 kg of phytoncides. This is enough to clear the atmosphere of a large city from pathogens.
Fortunately, in nature there is a huge number of this species, ranging from small creeping species, ending with tree-like juniper up to 10-15 meters high. Total genus juniper includes 75 species.
Most species of these plants are distinguished by drought tolerance and undemanding to soil conditions, which is especially important for Armenia and the city of Yerevan, in particular, due to the presence of poor soil in this region.
Another advantage of junipers is that undersized, creeping junipers can be used to cover and secure rocky and stony slopes, a significant number of which not only spoil the urban landscape, but also are a source of additional, undesirable costs of city budgets.
The presence of open rocky and stony slopes are a source of dust in the city (Yerevan) and its environs, which is also not only undesirable, but also increases the risk of morbidity of the population, since this dust contains traces of heavy metals, radioactive elements and other chemicals and chemical compounds that adversely affect the health of the population.
Thus, using various types of this valuable plant, one can not only ennoble the urban landscape, but also significantly improve the ecological situation of large cities (in particular, Yerevan), and this in turn will certainly affect the economic situation of our cities and even entire to our country, and even to all the region.