Estimation of specific pollution of settlements from the perspective of environmental monitoring of aerosol particles
Abstract
Estimation of specific pollution of settlements from the perspective of environmental monitoring of aerosol particles
Incoming article date: 20.01.2021In the settlement of Srednyaya Akhtuba, Sredneakhtubinsky district of the Volgograd region, a study was carried out to assess the specific pollution of the territory with aerosols. The main indicators of aerosol particles have been investigated: the number of particles (Np,%); particle diameter and fractional composition of particles (PM), mass fraction of particles (D (dp),%; specific density of particles (m0, μg / sq.cm). As a result of the studies, it was revealed that the specific pollution of the territory with aerosol particles in the working village ( rn) Average Akhtuba with an area of 2 sq. km, during the spring-summer season was 2.7 times higher (2.6938 tons) compared to the conditionally clean zone (0.997 tons). At the same time, the number of particles in fractions: PM0 -2.5 (26.97%) in Srednyaya Akhtuba, their values were 1.5 times higher than in the conditionally clean zone PM0-2.5 (18.12%). Coarse dust was in the lead in the conditionally clean zone by 2.1 times : PM> 10 (29.85%) compared with particles from the rn Srednyaya Akhtuba RM> 10 (14.16%) The results indicate that the atmospheric air of the settlement Srednyaya Akhtuba is polluted and dusty with aerosol particles as compared to the conditionally clean zone At the same time, both in the conditionally clean zone and in the middle Akhtuba region, the same amount of finely dispersed dust (PM2.5-10), which requires clarification of the research results and the search for a possible natural source of pollution in the horticultural non-profit partnership (SNT). Also, the mass fraction of particles of the fraction (PM2.5-10) in the Srednyaya Akhtuba rn was higher compared to the conditionally clean zone, despite the same number of particles. The source of aerosols in Srednyaya Akhtuba can be both industrial enterprises of the construction industry located in Srednyaya Akhtuba, as well as a hidden source of natural pollution. Further research and comprehensive study of the area is required.
Keywords: aerosols; environmental monitoring, specific pollution; specific gravity of particles; environmental risks; atmospheric air; PM2.5; PM10; PM> 10