Mostafa Y A Mostafa, Hyam Khalaf, Olaoye Morohunfoluwa Adeola, Kugbere Emumejaye, Peter Oluwadamilare Olagbaju, Oyebisola Lawal, Howaida Mansour
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Monitoring of natural radionuclides in water samples from LASU aquaculture and water plant.
The purpose of this study is to measure and evaluate the radionuclide concentration in fifteen samples of water factory and fishery farm the water treatment facilities and fishponds at Lagos State University's Ojo Campus. After being placed in sterile 75 cl containers, these samples were brought to the lab for gamma spectroscopy-based radionuclide analysis. The activity concentration of potassium-40 (40K), radium-226 (226Ra), and thorium-232 (232Th) ranged from 0.027 Bq/mL to 0.141 Bq/mL, 0.021Bq/mL to 0.082 Bq/mL and 0.021Bq/mL to 0.105 Bq/mL, with average value of 0.068 Bq/mL, 0.039 Bq/mL and 0.089 Bq/mL, respectively. All these values were found to be well below the maximum contaminant level (MCL) of 0.56 Bq/L for alpha emitters like 232Th and the Environmental Protection Agency's (EPA) safety threshold of 4 millisieverts (mSv) per year for beta and photon emitters, including 40K. This suggests that the fish population is not at risk from radioactivity in the water. Additionally, in order to assess any possible health risks related to consumption, the total annual effective dose from the samples was also estimated, and found to range from 4.08 to 15.67 μSv/year with mean value 9.4 ± 3 μSv/year, that falls within the recommended the World Health Organization's (WHO) recommended limit of 0.1 mSv/year (100 μSv/year) for radionuclide ingestion from drinking water.
期刊介绍：
Applied Radiation and Isotopes provides a high quality medium for the publication of substantial, original and scientific and technological papers on the development and peaceful application of nuclear, radiation and radionuclide techniques in chemistry, physics, biochemistry, biology, medicine, security, engineering and in the earth, planetary and environmental sciences, all including dosimetry. Nuclear techniques are defined in the broadest sense and both experimental and theoretical papers are welcome. They include the development and use of α- and β-particles, X-rays and γ-rays, neutrons and other nuclear particles and radiations from all sources, including radionuclides, synchrotron sources, cyclotrons and reactors and from the natural environment.
The journal aims to publish papers with significance to an international audience, containing substantial novelty and scientific impact. The Editors reserve the rights to reject, with or without external review, papers that do not meet these criteria.
Papers dealing with radiation processing, i.e., where radiation is used to bring about a biological, chemical or physical change in a material, should be directed to our sister journal Radiation Physics and Chemistry.
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