A OPEN PIT MINING AÇIK OCAK MADENCİLİĞİ

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5 CONCLUSION Based on the obtained results, it was found that the concentrations of gaseous pollutants originating from the truck traffic do not exceed the normative values. On the basis of the results set sedimentary dust emissions, it has been found that the highest concentrations of dust deposited in both periods of investigation are at measuring stations located close to the route of the road that runs through the village i. Concentrations of dust settling on the measuring stations positioned at the left and right side of the motorway, close to the households, decreasing with distance from the dwellings of the pathway. Concentration of precipitated powder exceed normative values at the monitoring stations covering the pathway. Emissions of dust deposited in some places is 20 times higher than allowed. Critical area in terms of measuring dust presents route times and distances up to 100 m from the source of dust emission. At greater distances than 100 m from the source of dust emissions, is reduced as well. Dust emissions due to truck transport are reduced by up to three times in the wet period. Emissions, airborne dust in some places are up to 70 times higher than prescribed. Airborne dust problem is more enhanced since the high concentration of dust is found in places that are far away from the route of transporting more than 100 m. As the surveys indicated that reducing the concentration of airborne dust is in direct dependence on the moisture of transport routes, and it is followed by the basic measures of protection from excessive dust emissions into the environment. Maintaining airborne dust levels below the limit values can be achieved with intensive sprinkling of the pathway in the dry period, in all seasons. Water sprinkling is advisable to add some of the absorption of funds for longer retention of moisture. The mine, however, is conducting the pouring of transport routes as a measure of protection from excessive dust emissions, but only in a very dry summer. REFERENCES Tuhtar D., 1990, Air and water pollution, Svjetlost Sarajevo, Sarajevo (pp 25-72) H., 1999, Gases in mines, RGGF Tuzla, Tuzla (pp 67-73) A. O., 2004, Protecting the environment, RGGF Tuzla, Tuzla (pp 35- 39) M., 1996, Ecology atmosphere of open pit, Book I, RGGF Tuzla, Tuzla (pp 85- 98) 194
23 rd Surface Mining Statistics in Romania M. Marinescu Faculty of Geology and Geophysics, University of Bucharest, Romania ABSTRACT In Romania, in time but the most in XX century, were exploited 82 mineral and power substances, in over 3,478 of identified quarries and open pits. 98.5 % (3427 quarries and open pits) from the total surface exploitations extracted non-power mineral substances and 1.5 % (51) power substances. Very much exploited (78) were non-power substances (or mining commodities). Some from these (bauxite, iron ore, manganese ore, copper ore, gold-silver ore, and complex ore) were metallic ores. But the most non-power substances (73) were non-metallic mineral substances. Only 4 were power substances: lignite, coal pit, bituminous schist, and bituminous sand. The quarries and open pits were identified in all 41 counties from Romania and in Bucharest. The distribution of quarry in these counties is non-homogenous, in correspondence with the different geological structure and economical development. Key words: mining statistics, surface mining, Romanian mining statistics, Romanian surface mining, Romanian quarries 1 INTRODUCTION Romanian territory is investigated in detail from geological point of view and is well known. While Romania is not a big country, because of the very complex geological structure, it has, identified and quantified in resources and reserves, 110 mineral and power substances (Marinescu, 2003). Usually, being at the ground surface or near (at little depth), the most numerous (82) from these mineral and power substances was exploited at the ground surface. The information about the surface mining comes continuous, yet from very old times. In this paper it is analyzed the surface mining situation on the bases of the present knowledge data about all times. It is evident that, about old and very old times, many data are now too slightly and this first presentation must to be improved, especially with new archaeological data. Of course, the most development of the surface mining is registered in modern times. 2 SURFACES <strong>MINING</strong> ON HISTORIAN EPOCHS The surface exploitation was beginning timid from the Pre-historical times, it was strong pursued in Antiquity, it manifested a more little development in Middle Ages and had presented bigger extending to ours times. The identified quarries and open pits were upwards of 91 and the number of mineral substances had exceeded 16. 2.1 Mining Surface in the Primitive Commune The slightly archaeological data about this Pre-historical time speak about some mineral substances surface exploitations: 6. Certainly, surface mining (in primitive manner) was practiced in more numerous, but unknown today sites. The firestone was much exploited but the archaeologists indicate sure exploitations at Bercea Mare, Lesnic and Roscani. In Cernat Hill, near Roscani village, together with firestone, was exploited the quartzite [Boroneant, 2000]. 195
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Chapter - A OPEN PIT MINING
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23 rd Electric Drive Mining Class
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3 METHOLOGICAL APPROACH AND EQUIPME
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23 rd 4 FINAL REMARKS Slope monito
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23 rd A Genetic Algorithm for Pit
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23 rd Selecting the Suitable Haula
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23 rd Environment Economy Society
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23 rd 6 THE HIERARCHICAL PREFERENC
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23 rd An Approach to Determine the
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A OPEN PIT MINING AÇIK OCAK MADENCİLİĞİ

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