Geology, geography and global energy

Scientific and Technical Journal

MONITORING OF ATMOSPHERIC AIR POLLUTION IN THE AREA OF THE "CASPIAN-CEMENT" CEMENT FACTORY

2020. №1, pp. 118-124

Barmin Alexander N. - Astrakhan State University, abarmin60@mail.ru

Kenzhetayev Gusman Zh. - Sh. Essenov Caspian State University of Technology and Engineering, fdsaf@list.ru

Volkova Irina V. - Astrakhan State Technical University, gridasova@mail.ru

Syrlybekkyzy S. - Sh. Essenov Caspian State University of Technology and Engineering, samal_86a@mail.ru

Aitimova Aynazhan M. - Astrakhan State University, aitimova_ainazhan@mail.ru

Zhidebayeva Aynur E. - Sh. Essenov Caspian State University of Technology and Engineering, ainusik_86@mail.ru

The relevance of the work lies in the fact that an assessment of atmospheric air pollution at the Shetpe Yuzhnoye chalk deposit, on the western plain where the “Caspian-Cement” factory is located. To achieve the goal and objectives of the survey, maps were made showing the boundaries of the Shetpe Yuzhnoye chalk deposit and the cement factory. In the area of survey the average annual wind speed is 3.2 m/s, and winds in the speed range 1-5 m/s have the highest repeatability (57.5 %). Wind recurrence in the speed ranges of 6-9 m/s, 10-12 m/s repeatability is 28.1 % and 7.4 %. In the area of survey storm winds with a velocity of more than 18 m/s are most often observed in the directions east - southeast (ESE) and west - north - west (WNW). Monitoring of a dusty surface in the summer of 2018 showed that dust can be carried away to an existing position from an area of 480,000 m2 with a total surface of the Shetpe Yuzhnoye chalk deposit of 14.5 km2, in the future - from an area of 510000 m2 due to the expansion of the boundaries of chalk production. The situational maps of the chalk pit and cement factory and isolines of the calculated concentrations of nitrogen dioxide and inorganic dust were performed using the Prism-Region program (CJSC NGP LOGOS). The maximum concentration of “Dust of inorganic SiO2 70-20 %” 5.55 MPC is achieved at the point χ = -38; y = -361 with a dangerous wind direction of 313° and a dangerous speed of 0.66 m/s.

Key words: месторождение мела, цементный завод, выбросы вредных веществ, расчет загрязнения атмосферного воздуха, chalk field deposit, cement plant, semidesert, emissions of harmful substances, calculation of atmospheric air pollution

Read