• Türkçe
    • English
  • English 
    • Türkçe
    • English
  • Login
View Item 
  •   Home
  • Avesis
  • Dokümanı Olmayanlar
  • Makale
  • View Item
  •   Home
  • Avesis
  • Dokümanı Olmayanlar
  • Makale
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Distribution and environmental impacts of heavy metals and radioactivity in sediment and seawater samples of the Marmara Sea

Author
Bassari, Asiye
Otansev, Pelin
Varinlioglu, Ahmet
Taskin, Halim
Metadata
Show full item record
Abstract
In this study, the natural and anthropogenic radioactivity levels in the sediment samples collected from the Marmara Sea in Turkey were determined. The average activity concentrations (range) of Ra-226, U-238, Th-232, K-40 and Cs-137 were found to be 23.8 (13.8-34.2) Bq kg(-1), 18.8 (6.4-25.9) Bq kg(-1), 23.02 (6.3-31.1) Bq kg(-1), 558.6 (378.8-693.6) Bq kg(-1) and 9.14 (4.8-16.3) Bq kg(-1), respectively. Our results showed that the average activity concentrations of Ra-226, U-238 and Th-232 in the sediment samples were within the acceptable limits; whereas the average activity concentration of K-40 in the sediment samples was higher than the worldwide average concentration. The average radium equivalent activity, the average absorbed dose rate and the average external hazard index were calculated as 100.01 Bq kg(-1), 4832 nGy h(-1) and 0.27, respectively. The average gross alpha and beta activity in the seawater samples were found to be 0.042 Bq L-1 and 13.402 Bq L-1, respectively. The gross alpha and beta activity concentrations increased with water depth in the same stations. The average heavy metal concentrations (range) in the sediment samples were 114.6 (21.6-201.7) mu g g(-1) for Cr, 568.2 (190.8-1625.1) mu g g(-1) for Mn, 39.3 (4.9-83.4) mu g g(-1) for Cu, 85.5 (11.0-171.8) mu g g(-1) for Zn, 32.9 (9.1-73.1) mu g g(-1) for Pb and 49.1 (6.8-103.0) mu g g(-1) for Ni. S5 station was heavily polluted by Cr, Cu, Ni and Pb. The results showed that heavy metal enrichment in sediments of the Marmara Sea was widespread. (C) 2016 Elsevier Ltd. All rights reserved.
URI
http://hdl.handle.net/20.500.12627/18092
https://doi.org/10.1016/j.chemosphere.2016.03.122
Collections
  • Makale [92796]

Creative Commons Lisansı

İstanbul Üniversitesi Akademik Arşiv Sistemi (ilgili içerikte aksi belirtilmediği sürece) Creative Commons Alıntı-GayriTicari-Türetilemez 4.0 Uluslararası Lisansı ile lisanslanmıştır.

DSpace software copyright © 2002-2016  DuraSpace
Contact Us | Send Feedback
Theme by 
Atmire NV
 

 


Hakkımızda
Açık Erişim PolitikasıVeri Giriş Rehberleriİletişim
sherpa/romeo
Dergi Adı/ISSN || Yayıncı

Exact phrase only All keywords Any

BaşlıkbaşlayaniçerenISSN

Browse

All of DSpaceCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsTypesThis CollectionBy Issue DateAuthorsTitlesSubjectsTypes

My Account

LoginRegister

Creative Commons Lisansı

İstanbul Üniversitesi Akademik Arşiv Sistemi (ilgili içerikte aksi belirtilmediği sürece) Creative Commons Alıntı-GayriTicari-Türetilemez 4.0 Uluslararası Lisansı ile lisanslanmıştır.

DSpace software copyright © 2002-2016  DuraSpace
Contact Us | Send Feedback
Theme by 
Atmire NV