Monitoring of aerosols in the atmospheric air of settlements
Abstract
Monitoring of aerosols in the atmospheric air of settlements
Incoming article date: 16.01.2022Monitoring of aerosols in the atmospheric air of residential areas of settlements ensures their environmental safety. Aerosol particles are capable of adsorbing various compounds, including metals, on their surface. It is known that heavy metals from the environment can penetrate into the human body and contribute to the development of various diseases. In this connection, their monitoring is relevant to ensure the environmental safety of residential areas of settlements. The purpose of the study was to study the indicators of the number and mass fraction of particles in the Sredneakhtuba district (Sredneakhtuba district, Volgograd region) for the spring-summer of 2019 in comparison with the conditionally clean zone. The material of the study was the leaves of Prunus armeniaca with aerosol particles. Leaves of Prunus armeniaca were placed in a glass container with 250 ml of distilled water, stirred for several minutes with a glass rod to wash particles from the surface of the leaves. As a result, aerosol suspensions were obtained, which were studied in terms of the number of particles and their mass fraction. The results obtained indicate almost the same amount of aerosol particles (PM10) in both territories. In terms of the mass fraction of aerosol particles (PM10), there is a significant excess of them in the experimental area. This fact may indicate the presence of metallic impurities in the aerosols of the residential area of Srednyaya Akhtuba. At the same time, it should be noted that the high values of the number of aerosol particles in the conditionally clean zone cast doubt on its status as a clean zone, since within a radius of 25 km. there is no anthropogenic load on it. The detected values of aerosol particles give grounds to assume the action of a random factor (the introduction of aerosol pollution by transit air), or the action of an unknown natural source of pollution, which requires further research and study of the territory of a conditionally clean zone in combination with geochemical studies, etc.
Keywords: environmental monitoring, environmental risks, aerosols; number and mass fraction of particles