The gross alpha (α)
and beta (β) activities and trace heavy elemental concentrations have
been determined in Single Super Phosphate
(SSP) and Nitrogen Phosphorous Potassium (NPK) fertilizers samples used
for agricultural purposes in Nigeria. Cultivated farm soil samples from two
regions (north and south) in the country and samples of phosphate rocks were
also analyzed for gross α and β radioactivity and elemental
concentrations. The beta activity concentration in the NPK (15-15-15)
fertilizers was found to vary from 2410.0 ± 80.0 Bq·kg–1 to 4560 ± 140.0 Bq·kg–1, between 1340.0 ± 70.0 Bq·kg–1 and 1440.0 ± 70.0 Bq
Abdel-Haleem, A.S., Sroor, A., El-Bahi, S.M. and Zohny, E. (2001) Heavy metals and rare earth elements in phosphate fertilizers components using instrumental neutron activation analysis. Applied Radiation and Isotopes, 55, 569-573. doi:10.1016/S0969-8043(01)00098-7
Fabiano, T.C. and Daniel M.B. (2006) Radionuclides, heavy metals and fluorine incidence at Tapira phosphate rocks, Brazil, and their industrial (by) products. Environmental Pollution, 139, 232-243.
Jibiri, N.N., Farai, I.P. and Alausa, S.K (2007) Estimation of annual effective dose due to natural radioactive elements in ingestion of foodstuffs in tin mining area of JosPlateau, Nigeria. Journal of Environmental Radioactivity, 94, 31-40. doi:10.1016/j.jenvrad.2006.12.011
McDonald, P., Jackson, D., Leonard, D.R.P. and McKay, K. (1999) An assessment of 210Pb and 210Po in terrestrial foodstuffs from regions of potential technological enhancement in England and Wales. Journal of Environmental Radioactivity, 43, 15-29.
Fernandez, G., Rodriquez, I.M., Castro, G.V., Carrazana, G. and Martizez, R.N. (2004) Radiological surveillance of foods and drinking water in the Cuban Republic. Proceedings of the 11th Conference of the International Radiation Protection Association (IRPA), Madrid, 23-28 March 2004.
Aytas, S., Yusan, S., Aslani, M.A.A., Karali, T., Turkozu, D.A., Gok, C., Erenturk, S., Gorkce, M. and Oguz, K. (2012) Determination and evaluation of natural radioactivity and heavy metal levels in surface sediments of Maritza and Tundja River. Scientific Technological Research Council of Turkey (TUBITAK) and Bulgarian Academy of Science (BAS), Contract ref No: 106Y201, INSINUME, Brussels, 12-15 June 2012.
Ghosh, D., Deb, A., Bera, S., Sengupta, R. and Patra, K.K. (2008) Measurement of natural radioactivity in chemical fertilizer and agricultural soil: Evidence of high alpha activity. Environmental Geochemistry and Health, 30, 79- 86. doi:10.1007/s10653-007-9114-0
Selcuk, Z.O., Cevlan, H. and Dogru, M. (2009) Gross alpha and beta radioactivity concentration in water, soil and sediment of the Bendimahi River and Van Lake (Turkey). Environmental Monit, 148, 39-46.
Sauerbeck, D. (1992) Conditions controlling the bioavailability of trace elements and heavy metals derived from phosphate fertilizers in soils. Proceeding of IMPHOS Conference on Phosphorus, Life and Environment, Casablanca, 8-11 September 1992, 418-448.
Modaihsh, A.S., Al-Swailem, M.S. and Mahjoub, M.O. (2004) Metals content of commercial inorganic fertilizers used in the Kingdom of Saudi Arabia. Sultan Qaboos University Journal for Scientific. Research Agricultural and Marine Sciences, 9, 21-25.