Radiological Assessment of Primordial Radionuclides in Crab Species from Igbokoda River in Southwest of Nigeria
Keywords:Radionuclides, gamma spectrometry, crab, dose rate, cancer risk, health
Communication in Physical Sciences, 2021, 7(1): 1-7
Authors: Olusegun Sowole* and Adesoji A. R. Adebambo
Received 30 January 2021/Accepted 11 February 2021
Primordial radionuclides are natural radionuclides of specific half-lives that are capable of disintegrating with the release of ionizing radiations along with huge amount of energy which can be so harmful to living organisms. Activity concentrations and radiological indices of 40K, 226Ra and 228Ra in crab species from Igbokoda River in the coastal area of South Western Nigeria, have been determined using gamma spectrometry method. Twenty (20) samples of three different species (Callinectes latimanus, Callinectes amnicola and Cadiosoma armatum) of crabs were collected from the River. The results obtained indicated that the highest dose rates of 40K, 226Ra and 228Ra were associated with Callinectes latimanus while the highest annual committed effective dose of 40K to man was 0.0026mSvyr-1 and was associated with Callinectes latimanus for 226Ra (0.0068mSvyr-1) and 228Ra (0.0208mSvyr-1). The highest excess lifetime cancer risk associated with 40K, 226Ra and 228Ra 0.0237 x 10-3 0.0728 x 10-3. All the values obtained were within the limits recommended globally; indicating that there was no significant radiological health implication to the aquatic animals and man the consumer
Adeyeye, E. I. (2002). Determination of the chemical composition of the nutritionally valuable parts of male and female common west-African fresh water crab Sudananautes africanus africanus. International Journal of Food Science Nutrition, 53, pp.189-196.
Adeyeye, E. I., & Kenni, A. M. (2008). The relationship in the amino acid of the whole body, flesh and exoskeleton of common West African fresh water male Crab Sudananautes africanus africanus. Pakistan Journal of Nutrition, 7, pp.748-752.
Akinloye, M. K., Olomo, J. B., & Olubunmi, P. A. (1999). Meat and poultry consumption contribution to the natural radionuclide intake of the inhabitants of the Obafemi Awolowo University, Ile-Ife, Nigeria, Nuclear Instruments and Methods in Physics Research, A422, 795-800.
Akin-Oriola, A., Anetekhai, M. A., & Olowonirejuaro, K. (2005). Morphometric and meristic studies in two crabs: Cardiosoma armatum and Callinectes pallidus. Turkish Journal of Fisheries and Aquatic Sciences, 5, pp. 85-89.
Blaylock, B. G., Frank, M. L., & O’Neal B. R. (1993). Methodology for Estimating Radiation Dose Rates to Freshwater Biota Exposed to Radionuclides in the Environment, ES/ER/TM-78, Oak Ridge Natl. Lab., Oak Ridge, Tenn.
Farai, I. P., & Oni, O. M. (2002). Natural radionuclide concentrations in aquatic species and absorbed dose equivalent to the dwellers of the coastal areas of Nigeria. Nigerian Journal of Physics, 14, 2, pp. 94-98.
Haridasan, P. P., Paul, A. C., & Desai, M. V. M. (2001). Natural radionuclides in the aquatic environment of a phosphogypsum disposal area. Journal of Environmental Radioactivity, 53, pp. 155–165.
ICRP (International Commission on Radiological Protection) (2007). Recommendations of the ICRP Publication, 103; Annuals ICRP, 37, pp. 2–4.
Jibiri, N. N., & Ajao, A. O. (2005). Natural activities of 40K 238U and 232Th in elephant grass (Pennisetum purpureum) in Ibadan metropolis, Nigeria. Journal of Environmental Radioactivity, 78, pp. 105-111
Khan, M. F., Raj, Y. L., Ross, E. M., & Wesley, S. G. (2007). Concentration of natural radionuclides (40K 228Ra and 226Ra) in seafood and their dose. International Journal of Low Radiation, 4, pp. 217–231.
NCRP (National Council on Radiation Protection and Measurements) (1991). Effects of Ionizing radiation on aquatic organisms, NCRP Report No. 109, Bethesda, Maryland.
Oduro, W., Ellis, W. O., Oduro, I., & Tetteh, D. (2001). Nutritional quality of selected Ghanaian crab species. Journal of the Ghana Science Association, 3, 3, pp. 37-40.
Qureshi, A. A., Tariq, S., Din, K. U., Manzoor, S., Calligaris, C., & Waheed, A. (2014). Evaluation of excessive lifetime cancer risk due to natural radioactivity in the rivers sediments of Northern Pakistan. Journal of radiation research and applied sciences, 7, 4, pp. 438-447
Sowole, O. (2011). Dose rates of natural radionuclides in fishes from Rivers in Sagamu Ogun State Nigeria. Canadian Journal of Pure and Applied Sciences, 5, 3, pp.1729 – 1732.
Sowole, O., & Olaniyi, O. E. (2018). Assessment of radioactivity concentrations and effective of radionuclides in selected fruits from major markets at Ijebu-Ode in Ogun State, Southwest of Nigeria. Journal of Applied Science and Environmental Management, 22, 1, pp. 95-98.
Sowole, O., Egunjobi, K. A., & Amodu, F. R. (2019). Determination of annual dose rate of natural radionuclides in Man from fishes in Victoria Island Lagoon, Southwest of Nigeria. International Journal of Oceans and Oceanography, 13, 1, pp. 57 – 64
Tettey-Larbi, L., Darko, E. O., Schandorf, C., & Appiah, A. A. (2013). Natural radioactivity levels of some medicinal plants commonly used in Ghana. Springer Plus, 2, 1, pp. 1-9
UNSCEAR (United Nations Scientific Committee on Effects of Atomic Radiation) (2000). Sources and Effects of ionizing radiation, Annex B, New York.
Copyright (c) 2010 The Journal and the author
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.