☆ 4.7 Article

Radioactivity levels in the marine environment along the Exclusive Economic Zone (EEZ) of Qatar

MARINE POLLUTION BULLETIN (2015)

Journal

MARINE POLLUTION BULLETIN

Volume 90, Issue 1-2, Pages 323-329

Publisher

PERGAMON-ELSEVIER SCIENCE LTD

DOI: 10.1016/j.marpolbul.2014.10.021

Keywords

Caesium-137; Radium-226; Uranium-238; Marine environment; Food-web representatives; EEZ of Qatar

Categories

Environmental Sciences Marine & Freshwater Biology

Funding

Qatar National Research Fund (QNRF), National Priorities Research Program (NPRP) project [NPRP 09-889-1-134]

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Abstract

A study on (137)cs, K-40, Ra-226, Ra-228, and U-238 was carried out along the EEZ of Qatar. Results serve as the first ever baseline data. The level of Cs-132 (mean value 1.6 +/- 0.4 Bq m(-3)) in water filters was found to be in the same order of magnitude as reported by others in worldwide marine radioactivity studies. Results are also in agreement with values reported from other Gulf regions. The computed values of sediment-water distribution coefficients K-d, are lower than the values given by IAEA. Measurements were carried out for bottom sediments, biota samples like fish, oyster, sponge, seashell, mangrove, crab, shrimp, starfish, dugong and algae. The 'concentration factors' reported for biota samples are below the levels published by IAEA and cause no significant impact on human health for seafood consumers in Qatar. (C) 2014 Elsevier Ltd. All rights reserved.

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