EXPERIMENTAL AND HYGIENIC CHARACTERISTICS OF PERICLASE-CARBON REFRACTORIES DUST

In intratracheal experiment on white rats, it was shown that silica dust causes greater and earlier pneumosclerosis changes compared with the dust on the periclase-carbon refractories on the organic binder (PCR), which are of a slight character, but after 6 months indicated the predominance kataral phenomena in the lung when administered dust PCR. Both dust cause toxic effects on the liver and kidneys. When exposed to dust PCR was an increase in the number of red blood cells and a significant increase in the concentration of hemoglobin. As a result of acute inflamed, and further development of chronic inflammation, in animals of both groups was observed at first increase in leukocytes is statistically significant with the introduction of dust PCR and further reduced compared to control in both groups, more marked in the group "silica".