[A chemical hygiene assessment of point emitters and of an unorganized source of air pollution from copper smelting at Nipkitoks in the city of Pernik].

Concentrations of adverse substances in air emissions of a copper manufacture have been determined. There have been found out dust, soot, copper, tin, lead. The generated emissions of these toxic elements from the investigated point generator are not above the admissible ranges and the established technologic conditions are not problematic. The concentrations of vinilchloride, carbon monoxide and carbon dioxide in the air of the working environment are below the respective admissible concentrations and the manufacture is not a source of pollution for the environment.