[Case-control study of lung cancer and combined home and work radon exposure in the town of Lermontov].

Relation between the risk of lung cancer and combined home and work indoor radon exposure was studied on the example of the population of Lermontov town (Stavropol Region, Russia). The town is situated in the former uranium mining area. Case (121 lung cancer cases) and control (196 individuals free of lung cancer diagnosis) groups of the study included both ex-miners and individuals that were not involved in the uranium industry.

[Multivariate analysis of the carcinogenic risk of radon].

Epidemiological studies using the methods of multivariate analysis were conducted to assess the contribution of unprofessional of radon radiation to the development of lung malignancies in the population living in the area having the increased radon hazard potential. The subject of the study was the town of Lermontov in the Stavropol Territory, the houses of its dwellers were found to have higher radon accumulation levels and high lung cancer morbidity rates were recorded among its population. Systems analysis of the influence of 23 various risk factors on the development of lung malignancies, which made by image recognition techniques, has indicated that in the town's population the contribution of nonprofessional exposure to radon to the development of this pathology is little and amounts to about 2%.

[The radon level of the living quarters in the city of Lermontov and the irradiation doses of the population].

The paper presents the results of determination of the levels of radon in the air of living spaces in the town of Lermontov, Stavropol Territory. Radon was determined by integral determination. Living space radon concentrations were found to be related to the season.