There were studied working conditions and the state of the muscular-skeletal system in employees of the oil industry. Working conditions of employees of basic occupations are referred to the hazard Class 3.1 - 3.3. Significant physical exertion with the predominant load on the lumbar-sacral area, constrained posture, the exposure to the general vibration and adverse weather conditions contribute to the development of diseases of the muscular-skeletal and peripheral nervous system. The most perspective trend in solving problems of diseases of the muscular-skeletal system is the implementation of the complex of preventive measures including both primary and secondary prophylaxis.

We have compared working conditions and health state of workers engaged in low- and large-tonnage ethylbenzene-styrene manufacturing. It has been shown that working conditions of low-tonnage workers are of сlass 3.3. They cause chronic occupational diseases as well as a high degree of work-related chronic diseases. Working conditions of large-tonnage workers are of сlass 3.1. Careful medical examination has not revealed any changes in «critical» organs and systems.

The estimation of professional risk on the basis of a priori and a posteriori criteria at five enterprises of the fuel and energy complex located in the Volga and Urals Federal Districts was carried out. Based on the conducted studies, a conceptual model for assessing risk management in oil producing, oil refining and petrochemical enterprises was developed, tested in real conditions and demonstrated high efficiency.

With the use of a one-stage method we have carried out hygienic studies of the air of work area of the production of continuous glass fiber. There was revealed the emission of epichlorohydrin, formaldehyde, ethane acid, hydrochloride, spray of mineral petroleum oil, fine glass fiber dust in air of the work area. There was established the combined effect of hazardous substances of unidirectional action with the summation effect on the body. Hazardous substances containing in glass fiber sizers in combination with dust of glass fiber against the background of microtraumatization of the hand skin contribute to the development of occupational skin neoplasms. The studies became the basis of the development of preventive measures aimed at the reduction of risks of the impact of the chemical factor impact on workers.

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