Канцерогенный риск для работников производства летательных аппаратов

Individual carcinogenic risk (ICR) was assessed in workers of main occupations in aircraft  construction industry of East Siberia. Levels of ICR were evaluated for the main occupations workers during 1 to 30 years of service. Th e workers’ exposure was assessed according to longstanding average shift  concentrations in the air of workplace, for the population — by average annual concentrations in the ambient air. To evaluate the risk not associated with occupation, the dose was taken for a period of 70 years life. Calculating dose of toxic chemicals in the air of workplace, the authors used “standard” parameters of pulmonary ventilation for adults, weight, days of exposure (240), working time (8 hours as a working day). Individual carcinogenic risk for Irkutsk population equaled 3.0E–04, in Ulan-Ude — 4.8E–04. Th e risk value for the general population is due to formaldehyde and chromium VI. Th e workers of main occupations in enterprises with carcinogenic jeopardy have ICR dozens of times higher than the general urban population. Considering a share in ICR, leading carcinogens for the aircraft  construction enterprise workers are: formaldehyde — vulcanizers, chromium and nickel — for other occupations. ICR is considered as unacceptable for occupational groups in 5–15 years aft er starting work under hazardous conditions. Despite high level of ICR, the occupational control incompletely covers monitoring of carcinogens. Existing system of occupational studies fails to disclose etiologic role of occupational factors in occurrence of malignancies.