TABLE OF CONTENTSSTATE OF THE ENVIRONMENT - CAUSES AND CONSEQUENCES
STATE OF THE ENVIRONMENT - CAUSES AND CONSEQUENCES

ECONOMIC IMPACTS ON THE ENVIRONMENT


Mineral Resources Exploitation

 
In 1998, 406 mines were in operation on the territory of the SR. Mineral resources exploitation took place at 621 exclusive mineral deposits of which 381 deposits were with exploitation site regarded as protected deposit area. The statistics shows that 182 exclusive mineral deposits were only with protected deposit sites being approved and 58 exclusive deposits were undergoing approval procedure in 1998. Besides exclusive deposit exploitation was in progress also at 242 non-limited mineral deposits.

In 1998, stabilisation trend in mining prevailed (brown coal and ligite, magnesite and salt) when compared with the previous period. In some cases a slight increase was recorded (brick clay, high-content limestone, limestones and raw materials for cement production.

From the total amount of coal mined approx. 85% was used for energy production (Power Plant Nováky was the main user), 15% was distributed in a form of graded coal. In 1998, from the total amount of 46 312 tonnes of crude oil exploited 4 166 tonnes were of non-paraffin oil and 42 146 tonnes were of semi-paraffin oil. Gajary and Dúbrava crude oil deposits had the largest share in crude oil exploitation. Their contribution to crude oil exploitation was 77% of the total exploitation.

In 1998, again a decline by 27 388 thousand m3 in natural gas exploitation was recorded (as compared to 1997). Ptrukša - the most important natural gas deposit allowed even propane-butane extraction of 558 tonnes a year which covers demand of East Slovakia region and partly also that of Central Slovakia region.

Ore exploitation in 1998 took place at branch enterprise Rudňany Želba shared comp. with headquarters at Spišská Nová Ves (complex baryte-siderite-sulphide ores) and at Siderit-Nižná Slaná (monomineral siderite replacement ores). Au - ores were mined by Slovak Mining Comp. s.r.o.. Hodruša-Hámre. In 1998, it produced 53.5 kilotons of gold ore (in 1997 66.3 kt) and 1.6 kilotons of concentrates (in 1997 1.75 kt).

In 1998, programmes following the reduction of total ores output were under way in Rudné Bane, State Mining Comp. Banská Bystrica. In accordance with the plans of liquidation, security works were carried out in Rožňava plants and ecological / technical works at the Sedem žien and Pezinok plants.

Figure 32 Mineral resources exploitation in the SR – basic development indicators
 
Source: HBÚ SR
Source: HBÚ SR
Source: HBÚ SR
Source: HBÚ SR