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.

Prognostic factors and life expectancy in myelodysplastic syndromes classified according to WHO criteria: a basis for clinical decision making.

____________________________________________________________________________________World Health Organization (WHO) pays special attention to preservation of laboring population health as only this population group can provide economic and social development of any state [20][21][22][23]. In relation to that WHO experts worked out a concept aimed at health management at a workplace and healthy lifestyle formation. Implementation of this concept into practice was called HESME («Health, Environment and Social Capital Management in Enterprises») [17][18][19].Over the last ten years of the 20 th century and the first 5 years of the 21 st century we saw mostly negative trends of primary public health indicators. Many researchers have proved that public health greatly depends on social and economic conditions, lifestyle factors, environment conditions and factors, and medical care level; and lifestyle is considered to be the most important.It has been proved that smoking, alcohol abuse, irrational nutrition, hypodynamia, and psycho-emotional stress are significant primary health risk factors [3,4,9]. Scientific researches that have been carried out over the last decades mostly cover health problems of workers employed by industrial enterprises [2,5,6,8,[11][12][13][14][15]. As for life quality and lifestyle of workers dealing with hydrocarbons extraction and processing we did not find a lot of