ASSESSMENT OF THE CARCINOGENIC RISK FOR THE POPULATION OF ULAN-UDE
Introduction. Oncological pathology has a high medical and social significance, so it is important to study the conditions of its formation. The aim of the study was to evaluate the cumulative carcinogenic risk for the population of the administrative center of the Republic of Buryatia (Ulan-Ude). Material and methods. The identification of the carcinogenic hazard caused by the entry of chemical ingredients into the ambient air was carried out in 2005-2015. The exposure assessment is based on long-term average annual concentrations of carcinogens in the air, drinking water, food. Indices of comparative carcinogenic hazard (HCR) and individual carcinogenic risk (ICR) are calculated. Results. The huge engineering enterprises are sources of several substances with carcinogenic effects (formaldehyde, chrome VI, cadmium, niсkel, epichlorohydrin, etc.).The individual carcinogenic risk for residents of Ulan-Ude is included in the range unacceptable for the general population. The main pathway for chemical agents to enter the body is inhalation (79%). The greatest contribution to the total individual carcinogenic risk on admission from the air was made by formaldehyde, chromium VI and Benz(a)pyrene. Priority carcinogens coming from drinking water and food are arsenic, cadmium, lead. Conclusion. Results of the assessment of individual carcinogenic risk in Ulan-Ude indicate an unacceptable level of the impact on the population. The assessment has a number of uncertainties, which determines the need to further improve the monitoring system for carcinogenic hazards.
About the authorsEfimova N.V.
Motorov Vladimir R.
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