Natural and artificial radioactivity measurements in Eastern Black Sea region of Turkey

CELIK N., ÇEVİK U., Celik A., Koz B.

JOURNAL OF HAZARDOUS MATERIALS, cilt.162, sa.1, ss.146-153, 2009 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 162 Sayı: 1
  • Basım Tarihi: 2009
  • Doi Numarası: 10.1016/j.jhazmat.2008.05.017
  • Dergi Adı: JOURNAL OF HAZARDOUS MATERIALS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.146-153
  • Anahtar Kelimeler: Environmental radioactivity, Artificial radioactivity, Eastern Black Sea, Chernobyl, Cs-137, ECOLOGICAL HALF-LIVES, CS-137, (CS)-C-137, LICHENS, AREA, LIFE
  • Karadeniz Teknik Üniversitesi Adresli: Evet

Özet

In the present work, naturally occurring radionuclides of (226)Ra, (232)Th and (40)K were measured in soil samples collected from the Eastern Black Sea region of Turkey. It was found that the activity concentrations ranged from 12 to 120 Bq kg(-1) for (226)Ra, from 13 to 121 Bq kg(-1) for (232)Th and from 204 to 1295 Bq kg(-1) for (40)K. Besides naturally occurring radionuclides, (137)Cs activity concentration was measured in soil, lichen and moss samples and it was found that (137)Cs activity concentration ranged from 27 to 775 Bq kg(-1) with for soil, from 29 to 879 Bq kg(-1) for lichen and from 67 to 1396 Bq kg(-1) for moss samples. Annual effective doses due to the naturally occurring radionuclides and (137)CS were estimated. Ecological half-lives of (137)CS in lichen and moss species were estimated. The decrease of the activity concentrations in the present measurements (2007) relative to those in 1993 indicated ecological half-lives between 1.36 and 2.96 years for lichen and between 1.35 and 2.85 years for moss species. (C) 2008 Elsevier B.V. All rights reserved.