Baymbetova N.A., Kazkenova G.T

Kostanay state university after A. Baytursynov, Kazakhstan

To a question about the state of atmospheric air in the vicinity of Krasnogorsk bauxite mine.

Atmospheric air is an important component of natural environment and an integral part of plant's, animal's and human's habitat. A dilemma of air pollution is the most important problem nowadays: open air , its interaction with the lithosphere, hydrosphere and space contribute to changing anthropogenic pollution on a global scale[1]. Air as a natural resource is a national property. The constancy of its composition - is essential condition for human's life. That is why any changes can be regarded as atmospheric pollution [2].

Mining - Metallurgical Complex of Kazakhstan Republic includes ferrous and nonferrous metals industry. Companies mining - metallurgical complex of Kazakhstan belong to the highest category of risk. According to the total volume of pollutants into the environment - mining - metallurgical complex ranks second after the energy sector. Krasnooktyabrsk's bauxite mine group (KBMG) - is one of the largest mining bauxite mines in the CIS, it is a major supplier of raw materials for JSC "Aluminium of Kazakhstan". The company is represented by four mines: Ayatsk, Krasnogorsk, Belinsk, Krasnooktyabrsk. The main activity of the company is the development and production of bauxite ore by open way. Bauxite - rock from which aluminum is produced. The aim of the research was to investigate the dynamics of the qualitative composition of air in the area of Krasnogorsk bauxite mine in the last 7 years.

Krasnogorsk bauxite mine is located in Kamystin district, 80 km south of v. Oktyabrsky. The structure includes an acting career number 1, № 3, in the long term testing of the Nordic group quarries - quarry original number 15. The mine is in a state of growth, in a short time a complex repair workshops and boxes of vehicles, railway depot were built here . Design work is underway to build a modern complex ore preparation. The atmosphere is released 25 titles of pollutants. In the result of the research we have investigate an information of the development and production of bauxite at the Krasnogorsk mine for the last 6 years. From picture 1 it shows that the amount of overburden from 2009 to 2014 years increased by 10700 tonnes., Which amounted to 33,1%.

Picture1: The amount of overburden at Krasnogorsk bauxite mine

The picture 2 shows that the least amount of bauxite mined in the Krasnogorsk bauxite mine were in 2009 and it was 2390 tons. In 2012-2013, the number of mining bauxite increased by 310 thousand tons compared to 2009 year and amounted to 2,700 thousand tons. In 2014, the number of mining bauxite totaled 2,800 tonnes. The increase in the production of bauxite in 2014 compared to 2009 was 17,2%. (see. picture 2).

Picture 2: Number of bauxite mining in the Krasnogorsk bauxite mine

The main work at which the emission of pollutants into the atmosphere is:

- Mining bauxite raw materials;

-Production of the explosion;

-Export overburden and bauxite by motor transport ;

-Formation overburden dumps;

-Crashing and shipment of bauxite raw materials.

We have research the content of certain pollutants in the air Krasnogorsk bauxite mine.

Table 1

T he content of NO₂ in the Krasnogorsk district of the mine

№p/p	Years	Amount of NО2,g/cm^3	MPC
1	2008	0,017	0,085
2	2009	0,017
3	2010	0,027
4	2011	0,027
5	2012	0,022
6	2013	0,022
7	2014	0,022

Table 1 shows that the minimum content of NO₂ observed in 2008 -2009, and the highest content was noted in 2010-2011, which amounted to respectively 0,017 and 0,027 g / cm³. The amount of the substance in the studied years was within the MPC. In 2008-2009 was 0,2 MPC, in 2010-2011 amounted to 0,32 MPC, in 2012-2014 amounted to 0,26 MPC.

Table 2

T he content of CO₂ in the Krasnogorsk district of the mine

№p/p	Years	Amount of CО2, g/сm^3	MPC
1	2008	0,9	5
2	2009	0,4
3	2010	0,75
4	2011	0,7
5	2012	0,4
6	2013	0,54
7	2014	0,54

Table 2 shows that the minimum amount of CO2 noted in 2009, 2012 and 2008, the highest content was noted, which made up 0,4 and 0,9 g / cm³. The amount of the substance in the studied years was within the MPC. In 2008 it amounted to 0,18 MPC, in 2009 and 2012 amounted to 0,08 MPC, in 2010 amounted to 0,15 MPC, in 2011 amounted to 0,14 of MPC, in 2013 and 2014 amounted to 0,11MPC.

Table 3

T he content of dust in the Krasnogorsk district of the mine

№p/p	Years	Amount of dust, g/сm^3	MPC
1	2008	0,12	5
2	2009	0,18
3	2010	0,063
4	2013	0,31
5	2014	0,37

Table 3 shows that the minimum content of the dust observed in 2008, and the highest content of dust marked 2014, which made up 0,12 and 0,37 g / cm³. The amount of the substance in the studied years was within the MPC. In 2008 it amounted to 0,02 MPC, in 2009 amounted to 0,04 of MPC, in 2010 amounted to 0,01 of MPC, in 2013 amounted to 0,06 MPC , 2014 was 0,07 MPC.

Table 4

T he content of SO₂ in the Krasnogorsk district of the mine

№p/p	Yeras	Amount of SО2, g/сm^3	MPC
1	2008	0,12	5
2	2009	0,1
3	2010	0,1
4	2011	0,098
5	2012	0,045
6	2013	0,039
7	2014	0,035

Table 4 shows that the amount of SO₂ in the studied years was within the MPC. The minimum content of SO₂ observed in 2014, it was 0,035 g / cm³, which corresponds to 0,01 MPC. The highest content of SO² noted in 2008, it was 0,12 g / cm³, which corresponds to 0,02 MPC.

The result of the research was revealed that the solid matter content of the test is within the MPC. In general, the state of the air basin in the Krasnogorsk district of bauxite mine on the investigated parameters is safe.

Literature:

1 Panin MS, Kazakh Ecology: Textbook for universities / ed. Baytulina IO - Semipalatinsk: Semipalatinsk Pedagogical Institute, 2005.-548s.

2.Nikolaykin NI Ecology: Textbook. for high schools / NI Nikolaikin, NE Nikolaikin, OP Melehova.- 5th ed., Rev. And add. - M .: Bustard, 2006.- S.375.