Artificial radio nuclides, such as iodine-131 (131I), cesium-134 (134Cs) and cesium-137 (137Cs), as well as natural isotopes of beryllium-7 (7Be) and potassium-40 (40K) have been registered in atmospheric aerosols over Vladivostok selected from 11 March to June 17, 2011. Artificial radio nuclides were also discovered in atmospheric wet depositions. Variability of gamma activity of natural isotopes of 7Be and 40K is not greater than one order of magnitude throughout the sampling period. Synoptic analysis of back trajectories movement of air masses showed that the radioactive cloud came from the regions of Siberia and North-Eastern part of China.
artificial radioactive isotopes, Fukushima reactor accident, atmosphere, transport
1. Mishukov V.F., Medvedev A.N., Slinko E.N. Study of aerosol contents at Russia Far East // J. Ecotechn. Res. 2001. V. 7, N 1. P. 61–70.
2. Mishukov V., Hayakawa K., Tabata M. Some results of joint investigations of aerosols element concentrations at region of the Sea of Japan // J. Ecotechn. Res. 2001. V. 7, N 2. P. 124–132.
3. Mishukov V.F., Medvedev A.N., Neroda A.S. Sources of Chemical Elements in the Air over Vladivostok // Pacific Oceanogr. 2004. V. 2, N 1–2. P. 109–116.
4. Tang N., Hattori T., Taga R., Igarashi K., Yang X., Toriba A., Kizu R., Hayakawa K., Tamura K., Kakimoto H., Mishukov V.F. Polycyclic aromatic hydrocarbons and nitropolycyclic aromatic hydrocarbons in urban air particulates and their relationship to emission sources in the Pan-Japan Sea countries // Atmos. Environ. 2005. V. 39, N 32. P. 5817–5826.
5. Mishukov V.F., Neroda A.S., Belan T.V., Kondrat’ev I.I., Semykina G.I., Kachur A.N. National Report of the Russian Federation on Atmospheric Deposition of Contaminants into the Marine and Coastal Environment in NOWPAP Region / National Reports on Atmospheric Deposition of Contaminants into the Marine and Coastal Environment in NOWPAP Region. POMRAC, Vladivostok, Russian Federation / Ред. А.Н. Качур, С.И. Коженкова. Владивосток: Изд-во Дальневост. ун-та, 2006. С. 165–208.
6. National Institute of Health – Accidents at Nuclear Power Plants and Cancer Risk.
7. Papastefanou C., Manolopoulou M., Charalambous S. Radiation measurements and radioecological aspects of fallout from the Chernobyl reactor accident // J. Environ. Radioact. 1988. V. 7, iss. 1. P. 49–64.
8. Beck H.L. Monitoring Nuclear Fallout // Radioactive Air Sampling Methods / Ed. by Mark D. Hoover. CRC Press LLC. 2011. Chapter 18. P. 369–387.
9. Uematsu M., Duce R.A., Prospero J.M., Chen L., Merrill J.T., McDonald R.L. Transport of mineral aerosol from Asia over the North Pacific Ocean // J. Geophys. Res. C. 1983. V. 88, iss. 9. P. 5343–5352.
10. Draxler R.R., Hess G.D. Description of the HYSPLIT_4 modeling system. 1997. NOAA Tech. Memo. ERL ARL-224, NOAA Air Resources Laboratory, Silver Spring, MD. 24 p. http://www.arl.noaa.gov/HYSPLIT_pubs.php
11. Normy radiacionnoj bezopasnosti (NRB-99): Gigienicheskie normativy. M.: Centr sanitarno-jepidemiologicheskogo normirovanija, gigienicheskoj sertifikacii i jekspertizy Minzdrava Rossii, 1999. 116 p.