[The usefulness of troponin I in the diagnosis of cardiac damage in acute carbon monoxide poisoning].

Tissue hypoxia in carbon monoxide poisoning is often responsible for cardiac damage that is not always registered in ECG recordings. It is therefore necessary to look for biochemical markers of this damage. Troponin I, the protein not detected in serum of healthy people meets these criteria as its presence proves the cardiac damage.

[Degree of exposure to arsenic compounds of workers in zinc smelteries].

Due to a number of cases of acute arsine poisonings in one of zinc metallurgic plants, the environmental concentrations of arsenic compounds were determined. In the technological process of zinc metallurgy, the highest arsine concentrations can occur: a) during zinc refining in the furnace, where, because of the full automatization process, the presence of workers is not necessary, b) during the refining furnace repair--because of the melting loss wetting. Levels of arsenic concentrations, just as cadmium and zinc concentrations, according to the valid hygienic standards, are very low at the shaft furnace and the agglomerating plant.

[Incidence of pneumoconiosis in coal mines with different levels of mechanization].

2717 miners working more than eight years in four collieries have been examined. Two of those mines were mechanized, whereas in the other two the degree of mechanization was low. Anamnestic data and radiological examinations have been correlated with dust concentration, silica content and individual index of energy expenditure.