Radiation conditions in the Oryol region territory impacted by radioactive contamination caused by the Chernobyl NPP accident

Research objective is retrospective analysis of radiation conditions in the Oryol region during 1986- 2015 and assessment of efficacy of the carried out sanitary and preventive activities for population protection against radiation contamination caused by the Chernobyl NPP accident.Article materials were own memoirs of events participants, analysis of federal state statistic surveillance forms 3-DOZ across the Oryol region, f-35 “Data on patients with malignant neoplasms, f-12 “Report on MPI activities”. Risk assessment of oncological diseases occurrence is carried out on the basis of AAED for 1986- 2014 using the method of population exposure risk assessment due to long uniform man-made irradiation in small doses. Results of medical and sociological research of genetic, environmental, professional and lifestyle factors were obtained using the method of cancer patients’ anonymous survey. Data on "risk" factors were obtained from 467 patients hospitalized at the Budgetary Health Care Institution of the Oryol region “Oryol oncology clinic”; a specially developed questionnaire with 60 questions was filled out.The article employs the method of retrospective analysis of laboratory and tool research and calculation of dose loads on the Oryol region population, executed throughout the whole period after the accident.This article provides results of the carried out laboratory research of foodstuff, environment objects describing the radiation conditions in the Oryol region since the first days after the Chernobyl NPP accident in 1986 till 2015.We presented a number of activities aimed at liquidation of man-caused radiation accident consequences which were developed and executed by the experts of the Oryol region sanitary and epidemiology service in 1986-2015. On the basis of the above-stated one may draw the conclusions listed below. Due to interdepartmental interaction and active work of executive authorities in the Oryol region, the population of the territories impacted by radioactive contamination is provided with conditions in compliance with radiation safety requirements and hygienic specifications.Since January 1987 according to radiation and hygienic monitoring in the Oryol region, the local foodstuff did not exceed the hygienic specifications on radiation. In the territories included in the zone of radioactive contamination, the economic activities may be carried out without special protective measures for decrease of caesium-137 and strontium-90 content in produce, there are no restrictions on picking of wild-growing berries, herbs and mushrooms.Being direct participants of development and carrying out of activities for the region protection in case of emergency situation at the radiation hazardous site, we believe that the data presented in this article may be useful both for experts and general population.

radiation and hygienic monitoring, exposure dose assessment, radiation safety

1. MU 2.1.10.3014-12. Otsenka radiatsionnogo riska u naseleniya za schet dlitelnogo ravnomernogo tekhnogennogo oblucheniya v malykh dozakh: Metod. ukazaniya [MU 2.1.10.3014-12. Assessment of population radiation risk due to long uniform man-caused exposure in small doses: Methodology Instructions], approved introduced on 18 April 2012, M., Federal Service for Supervision of Consumer Rights Protection and Human Welfare, 2012, 26 p.

2. Rosiyskaya Federatsiya. Postanovlenie Pravitelstva. Ob utverzhdenii perechnya naselennykh punktov, nakhodyashchikhsya v granitsakh zon radioaktivnogo zagryazneniya vsledstvie katastrofy na Chernobylskoy AES, 18.12.1997, № 1582 [Russian Federation. Order of the Russian Federation Government. On the endorsement of the list of settlements located within the radioactive contamination boundaries after the Chernobyl NPP disaster, 18 December 1997, № 1582], M. 1997.

3. Rossiyskaya Federatsiya. Postanovlenie Pravitelstva. Ob izmenenii perechnya naselennykh punktov, nakhodyashchikhsya v granitsakh zon radioaktivnogo zagryazneniya vsledstvie katastrofy na Chernobylskoy AES, 07.04.2005, № 197 [Russian Federation. The Russian Federation Government Order. On modification of the list of settlements within the boundaries of radioactive pollution zone caused by Chernobyl NPP accident, 07 April 2005, No 197], , M., 2005.

4. Rosiyskaya Federatsiya. Postanovlenie Pravitelstva. Ob utverzhdenii perechnya naselennykh punktov, nakhodyashchikhsya v granitsakh zon radioaktivnogo zagryazneniya vsledstvie katastrofy na Chernobylskoy AES, 08.10.2015, № 1074 [Russian Federation. Order of the Russian Federation Government. On approval of the list of settlements within the boundaries of radioactive pollution zones caused by Chernobyl NPP accident 08 October 2015, № 1074], M, 2015.

5. Zlokachestvennye novoobrazovaniya v Rossii v 2013 godu (zabolevaemost, smertnost) [Malignant neoplasms in Russia in 2013 (morbidity, mortality)], Statistical compendium, M., FSI “P.A. Herzen Moscow Scientific and Research Oncological Institute” of the Ministry of Healthcare and Social Development of the Russian Federation, 2015, 250 pp.

6. Zakharchenko G.L. Domaeva A.A., Vasilev A.A. Regionalnye osobennosti zabolevaemosti zlokachestvennymi novoobrazovaniyami organov dykhaniya na territorii Orlovskoy oblasti [Regional features of respiratory organs malignant neoplasms in the Oryol region]. Kantserogennaya opasnost v razlichnykh otraslyakh promyshlennosti i obektakh okruzhayushchey sredy: Sb. nauch. tr. 4-go Vserossiyskogo simpoziuma

7. s mezhdunarodnym uchastiem – Cancerogenic hazard in different industries and environment sites: Collection of scientific papers of the 4th All-Russia symposium with international participation, Yekaterinburg, Ural State Medical Academy, 2013, pp. 32-34.

8. Zakharchenko G.L. Radiatsionnaya obstanovka na territorii Orlovskoy oblasti posle avarii na Chernobylskoy atomnoy elektrostantsii [Radiation conditions in the Oryol region after the Chernobyl NPP accident]. Aktualnye voprosy gigieny i epidemiologii, mezhregionalnaya konferentsiya, posvyashchennaya 95-letiyu Voronezhskoy gosudarstvennoy meditsinskoy akademii im. N.N.Burdenko – Pressing Issues of Hygiene and Epidemiology, Interregional Conference devoted to the 95th anniversary of the Voronezh State Medical Academy after N.N. Burdenko, Voronezh, 2013, pp. 54-56.

9. Zakharchenko G.L. Rezultaty radiatsionno-gigienicheskogo monitoringa na territorii Orlovskoy oblasti [Results of radiation and hygienic monitoring in the Oryol region]. Sbornik materialov 3 vserossiyskoy konferentsii s mezhdunarodnym uchastiem «Profilakticheskaya meditsina – 2013» – Collection of scientific papers of the 3rd All-Russia conference with international participation “Preventive medicine – 2013”, SPb, 2013, pp. 280-281.

10. Zakharchenko G.L. Radiatsionnaya obstanovka na territorii Orlovskoy oblasti, podvergsheysya radioaktivnomu zagryazneniyu vsledstvie avarii na Chernobylskoy AES [Radiation conditions in the Oryol region territory impacted by radioactive contamination caused by the Chernobyl NPP accident]. Radiatsionnaya gigiena – Radiation hygiene, 2011, Vol.4, № 2, pp. 120-124.

11. Saurina O.S., Zakharchenko G.L., Udodov A.V., Vasilev A.A. Sovremennoe sostoyanie problemy zabolevaemosti zlokachestvennymi novoobrazovaniyami trakhei, bronkhov I legkogo na territorii Orlovskoy oblasti [Current situation regarding morbidity of trachea, bronchial tubes and lungs malignant neoplasms in the Oryol region]. Uchenye zapiski Orlovskogo gosudarstvennogo universiteta – Proceedings of the Oryol State University, Oryol, 2012, № 6 (50), pp. 317 – 321.

12.