Ecological Systems and Devices Annotation << Back DISPERSE COMPOSITION OF THE DUST IN THE GROUND LAYER OF THE URBANIZED AREA ATMOSPHERE ACCORDING TO THE DATA OF ECOLOGICAL SCREENING ON THE EXAMPLE OF YEKATERINBURG CITY I.E. Subbotina, A.G. Buevich, A.P. Sergeev, E.M. Baglaeva, A.I. Kosachenko, A.S. Moskaleva To determine the connection between air pollution and health problems in urban areas, the state of atmospheric air is estimated. Environmental monitoring systems and mobile installations collect information in the surface layer of the atmosphere about the quantitative content of pollutants, their spatial distribution and dispersed composition. The choice of design and technological features of devices depends on the measurement task. To test the possibility of dust separation to gravitationally sedimented and winding during the sampling process, a previously manufactured and patented sampling station was modified. Analysis of the results showed a decrease in the calculated dust concentration with a lid on the air intake. Also, the addition of the lid results in a decrease in the part of large dust particles (more than 10 μm) on the filter, respectively, the part of fine particles increases. Keywords: particulate matter; atmospheric surface layer; vertical distribution of dust; atmospheric particle size distribution. DOI: 10.25791/esip.02.2019.412 Contacts: E-mail: iesub@mail.ru, E-mail: bagalex3@gmail.com Pp. 03-08.