[Peculiarities of generalized periodontitis formation in oil extraction workers].

Studies covered dental state and biologic homeostasis in oil extraction workers (drillers and driller assistants). Findings are high prevalence of parodentium disorders among the examinees. The peripheral blood and mouth lavage appeared to contain excessive amounts of metals (nickel, cadmium).

[The effect of petrochemical and oil-refining enterprises on the sanitary state of the soil cover]. / Vliianie predpriiatii neftekhimicheskoi i neftepererabatyvaiushchei otrasli na sanitarnoe sostoianie pochvennogo pokrova.

Pollution of soil and agricultural plants was studied in the areas of petrochemical and oil-processing enterprises. Massive soil pollution was found in the adjacent 1-3-km areas. Hydrocarbons and metals from wastes accumulate in onions, radish, potatoes, and apples.