Fluctuation of radiocaesium concentrations in the near-surface atmospheric layer in Białystok in the period 1992-1999

• Autorzy: Kapała J. , Zalewski M. , Tomczak M. , Mnich Z. , Karpińska M.
• Konferencja: Proceedings of the Third National Conference on Radiochemistry and Nuclear Chemistry, 6-9 May 2001, Kazimierz Dolny
• Języki publikacji: EN

Abstrakty

EN

Air samples were collected at an early-warning sampling and monitoring radioactive contamination station ASS-500. The results of the measurements are presented for radioactive aerosols collected on filters each week between 1992 and 1999. The large variations in activity concentration were observed in annual cycles. The maximum values exceeded the mean annual values by a factor of 2.8 to 7.3. Over the period of eight years the mean values of activity in air was found to decrease from 5.3 mi Bq m-3 in 1992 to 2.2 mi Bq m-3 in 1999. A good correlation between the Cs-137 activity and dust content in the air indicates that in the observed period the main source of Cs-137 activity is the dust with soil and vegetation particles. The effect of radiation from inhalation is negligible (626 pSv).

Słowa kluczowe

EN

air contamination; Chernobyl accident; Cs-137

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2002
• Tom: Vol. 47, nr 2
• Strony: 69--73
• Opis fizyczny: Bibliogr. 13 poz., rys.

Twórcy

autor

Kapała J.

• Department of Biophysics, Medical Academy of Białystok, 2A Mickiewicza Str., 15-230 Białystok, Poland, Tel.: [phone], Fax: [phone]

autor

Zalewski M.

• Department of Biophysics, Medical Academy of Białystok, 2A Mickiewicza Str., 15-230 Białystok, Poland, Tel.: [phone], Fax: [phone]

autor

Tomczak M.

• Department of Biophysics, Medical Academy of Białystok, 2A Mickiewicza Str., 15-230 Białystok, Poland, Tel.: [phone], Fax: [phone]

autor

Mnich Z.

• Department of Biophysics, Medical Academy of Białystok, 2A Mickiewicza Str., 15-230 Białystok, Poland, Tel.: [phone], Fax: [phone]

autor

Karpińska M.

• Department of Biophysics, Medical Academy of Białystok, 2A Mickiewicza Str., 15-230 Białystok, Poland, Tel.: [phone], Fax: [phone]

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