Open AccessComponent composition of atmospheric dusts as a characteristic of environmental pollution
Author(s) -
S. Yu. Zagorodnov
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/548/7/072069
Subject(s) - mineral dust , environmental chemistry , pollution , atmospheric dust , environmental science , chemical composition , particulates , air pollution , snow , component (thermodynamics) , range (aeronautics) , mineralogy , aerosol , materials science , chemistry , meteorology , composite material , ecology , physics , organic chemistry , biology , thermodynamics
Air pollution from urban areas by solid dust particles potentially affects the level of chemicals in the soils of the surrounding area. Under the influence of gravity, solid particles settle, fall out in the form of rain and snow. The chemical composition of solid particles of atmospheric air contains a multicomponent mixture containing both organic and inorganic impurities, including extremely and highly dangerous ones. Based on the example of three central regions of Perm, comprehensive studies of the solid component of atmospheric air are carried out. The studies included determining the concentration levels of suspended solids and fine fractions PM10 and PM2.5, studying the component composition, forming a profile of solid particles and studying the morphological properties of the identified particles. During the study, an averaged profile of dust particles was formed, which is characterized by a wide range of chemicals, including: oxides of iron, calcium, silicon, aluminum, etc. The multicomponent nature of dust pollution of atmospheric air is confirmed by morphological features, solid particles are represented by a wide range of forms and various structures. Based on the results of the studies, proposals are made for the organization of environmental monitoring based on a detailed study of the component composition and inclusion of fine fractions PM10 and PM2.5 in the atmospheric air monitoring system of Roshydromet.