STUDY ON MONITORING SEDIMENTABLE AND SUSPENSION POWDER IN THE AREA COAL DEPOT ROSIUTA.

The present work shows the dimensions of the pollution caused by the mining activities within the Rosiuța quarry. The negative impact of mining activities on the environment is a direct one, which is strictly related to the actual extraction of the deposits of useful mineral substances and the other indirectly, related to the mineral processing activity. Surface mining is a source of dust pollution throughout its life, from the moment the land surface began to be disturbed until the entire surface was again covered by vegetation. The surface exploitation activity of the lignite developed in the Roşiuța quarry is the main source of air pollution, especially with suspended powders and sedimentable powders. The excavated coal has a low mechanical resistance, to which low humidity is added, especially in hot weather. leads to the formation of powders. The air quality in the area of influence of the mining perimeter is mainly affected by the technological processes in the quarry, the dump and the coal deposit, by the increase in certain points of the mining perimeter of the concentration of powders. [ABSTRACT FROM AUTHOR]