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Environmental Earth Sciences

, Volume 71, Issue 4, pp 1541–1549 | Cite as

Assessment of natural radioactivity, associated radiological health hazards indices and soil-to-crop transfer factors in cultivated area around a fertilizer factory in Onne, Nigeria

  • Avwiri O. Gregory
  • E. O. AgbalagbaEmail author
Original Article

Abstract

Concentration of natural radionuclides in three major staple food crops cultivated around a fertilizer plant in Onne, Rivers State Nigeria and the cultivated soil samples were determined using gamma spectroscopy operated on a Canberra vertical high purity 3″ × 3″ NaI(TI) detector. The average activity concentration of 238U, 232Th and 40K was determined, for cassava flour (U 19.3 ± 5.0, Th 11.4 ± 3.3, K 426.9 ± 33.8) Bq kg−1, for yam flour (U 6.3 ± 1.8, Th 8.4 ± 2.6, K 227.0.9 ± 27.3) Bq kg−1 while for cocoyam flour (U 7.5 ± 2.7, Th 7.1 ± 2.3, K 195.8 ± 25.83) Bq kg−1. The mean activity concentration for soil samples is 18.7 ± 3.7 Bq kg−1, 18.0 ± 3.8 Bq kg−1 and 308.4 ± 22.4 Bq kg−1 for 238U, 232Th and 40K, respectively. These values obtained show enhanced 40K concentration which is attributed to the effluent discharge from a fertilizer plant and its applications to farmlands, but 238U, 232Th values are well within the global average and values reported in some regions and countries of the world. Radiation hazard indices obtained to estimate potential radiological health risk in both foodstuffs and soil samples are well below their permissible limit as set by UNSCEAR [Sources and effects of ionizing radiation (Report to the General Assembly), 2000]. The rate of radionuclides transfer from soil to crops was moderate with mean transfer factors of 232Th < 238U < 40K.

Keywords

Natural radioactivity Transfer factor Crops and soil Fertilizer Onne 

References

  1. Agbalagba EO, Onoja RA (2011) Evaluation of natural radioactivity in soil, sediment and water samples of Niger Delta (Biseni) flood plain lakes, Nigeria. J Environ Radioact 102:667–671CrossRefGoogle Scholar
  2. Akinloye MK, Olomo JB (2005) The Radioactivity in some grasses in the environment of nuclear research facilities located within the OAU ILE-IFE, Nigeria. Nigeria J Phys 17S:219–225Google Scholar
  3. Alaamer AS (2008) Assessment of human exposures to natural sources of radiation in soil of Riyadh, Saudi Arabia. Turkish J Eng Environ Sci 32:229–234Google Scholar
  4. Arogunjo AM (2003) Natural radionuclides contents of some local cereals in Akure, south western Nigeria. Niger J Pure Appl Phys 2:34–35Google Scholar
  5. Arogunjo AM, Farai IP, Fuwape IA (2004) Dose rate assessment of terrestrial gamma radiation in the Delta region of Nigeria. Radiat Prot Dosimetry 108:73–77CrossRefGoogle Scholar
  6. Arogunjo AM, Ofuga EE, Afolabi MA (2005) Levels of natural radionuclides in some Nigerian cereals and tubers. J Environ Radioact 82:1–6CrossRefGoogle Scholar
  7. Ashraf EMK, Layia HA, Amany AA, Al-Omran AM (2010) NORM in clay deposits. In: Proceedings of third European IRPA congress, Helsinki, pp 1–9Google Scholar
  8. Avwiri GO (2002) A survey of radionuclide concentration levels in soil around a fertilizer plant. Environ Rev 4(1):454–457Google Scholar
  9. Badran HM, Sharshar T, Elnimer T (2003) Levels of 137Cs and 40K in Edibles parts of some vegetables consumed in Egypt. J Environ Radioact 67:181–190CrossRefGoogle Scholar
  10. Beaza A, del Rio M, Mir C, Paniagua JM (1992) Natural radioactivity in soils of the Province of Caceres (Spain). Radiat Prot Dosimetry 45:261–263Google Scholar
  11. Carini F (2001) Radionuclide transfer from soil to fruit. J Environ Radioact 52:237–279CrossRefGoogle Scholar
  12. Delaune RD, Jones GL, Smith CJ (1986) Radionuclide concentration in Louisiana soils and sediments. Health Physics 51:239–244Google Scholar
  13. Diab HM, Nouh SA, Hamdy A, El-Fiki SA (2008) Evaluation of natural radioactivity in a cultivated area around a fertilizer factory. J Nucl Radiat Phys 3(1):53–62Google Scholar
  14. Eyebiokun MR, Arogunjo AM, Oboh G, Balogun FA, Rabiu AB (2005) Activity concentration and absorbed dose equivalent of commonly consumed vegetables in Ondo state, Nigeria. Niger J Phys 17(5):187–191Google Scholar
  15. Fatima I, Zaidi JH, Arif M, Daud M, Ahmad SA, Tahir SAN (2008) Measurement of natural radioactivity and dose rate assessment of terrestrial gamma radiation in the soil of southern Punjab, Pakistan. Radiat Prot Dosimetry 128(2):206–212CrossRefGoogle Scholar
  16. Hakonson-Hayes AC, Fresquez PR, Whicker FW (2002) Assessing potential risks from exposure to natural uranium in well water. J Environ Radioact 59:29–40CrossRefGoogle Scholar
  17. Hasan MK, Ismail M, Khan K, Akhter P (2011) Radioactivity levels and gamma- ray dose rate in soil samples from Kohistan (Pakistan) using gamma- ray spectrometry. Chin Phys Lett 28(1):1–4CrossRefGoogle Scholar
  18. Heidrum S, Sieg Fried S, Jong R (2011) Weathering behaviour and construction suitability of dimension stone from the Drei Gleichen area (Thuringa Germany). Environ Earth Sci 63(7–8):1763–1786Google Scholar
  19. International Union of Radioecologists (IUR) (1989) 6th Report of the working group soil plant transfer factors (Report of the working group meeting in Guttannen), GrimselpassGoogle Scholar
  20. Kabir KA, Islam SAM, Rahman MM (2009) Distribution of radionuclides in surface soil and bottom sediment in the district of Jessore, Bangladesh and evaluation of radiation hazard. J Bangladesh Acad Sci 33(1):117–130Google Scholar
  21. Lambrechts A, Foulquier L, Garnier-Laplace J (1992) Natural radioactivity in the aquatic components of the main French rivers. Al- Junda, J., B.A. Al- Bat Phys 16:131–136Google Scholar
  22. McAulay IR and Morgan D (1988) Natural radioactivity in soils in the Republic of Ireland. Radiat Prot Dosimetry 24(1/4):47–49Google Scholar
  23. Moffat L, Linden K (1995) Perception and reality: assessing priorities for sustainable development in the Niger River Delta. Ambio 24(7–8):527–532Google Scholar
  24. Mustapha AO, Patel JP, Rathore IVS (1999) Assessment of human exposures to natural sources of radiation in Kenya. Radiat Prot Dosimetry 82:285–292CrossRefGoogle Scholar
  25. Narayana Y, Somashekarappa HM, Karunakara N, Avadhani DN, Maheshi HM, Siddappa K (2001) Natural radioactivity in the soil samples of coastal Karnataka of south India. Health Phys 80(1):24–33CrossRefGoogle Scholar
  26. Noordin I (1999) Natural activities of 238U, 232Th and 40 K in building materials. J Radioact Environ 43:255–258CrossRefGoogle Scholar
  27. Nour KA, Abdel GME (2005) Natural radioactivity in farm soil and phosphate fertilizer and its environmental implications in Qena governorate, Upper Egypt. J Environ Radioact 84(1):51–64CrossRefGoogle Scholar
  28. Olomo JB (1990) The natural radioactivity in some Nigerian foodstuff. Nucl Inst Methods Phys Res A299:666–669CrossRefGoogle Scholar
  29. Rahman MM, Voigt G (2004) Radiocesium soil-to-plant transfer in tropical environments. J Environ Radioact 71:127–138CrossRefGoogle Scholar
  30. Ryuta H, Kiyoshi S (2009) Environmental assessment of natural radioactivity in soil samples from the LUSI mud volcano, Indonesia. EnvironmentAsia 2:45–49Google Scholar
  31. Saleh IH, Hafez AF, Elanany NH, Motaweh HA, Naim MA (2007) Radiological study on soils, foodstuff and fertilizers in the Alexandria region, Egypt. Turkish J Eng Environ Sci 31:9–17Google Scholar
  32. Sam AK, Ahmed MMO, El Khangi FA, El-Nigumi YO, Holm E (1997) Assessment of terrestrial gamma radiation in Sudan. Radiat Prot Dosimetry 71(2):141–145CrossRefGoogle Scholar
  33. Tahir SNA, Jamil K, Zaidi JH, Arif M, Ahmed N, Ahmad SA (2005) Measurements of activity concentrations of naturally occurring radionuclides in soil samples from Punjab Province of Pakistan and assessment of radiological hazards. Radiat Prot Dosimetry 113(4):421–427CrossRefGoogle Scholar
  34. Takem EG, Domadula C, Ayonghe SN, Thambidurai P (2010) Pollution characteristics of alluvial ground water from springs and bore wells in semi- urban informal settlements of Douala, Cameroon, West Africa. Environ Earth Sci 61(2):287–298CrossRefGoogle Scholar
  35. Tang S, Chen Z, Li H, Zheng J (2003) Uptake of 137Cs in soil shoots of Amaranthus tricolor and Amaranthus cruetus. Environ Pollut 125:305–313CrossRefGoogle Scholar
  36. Twining J, Shotton P, Tagami K, Payne T, Itakura T, Russell R, Wilde K, McOrist G, Wong H (2003) Transfer of radioactivity caesium, strontium and zinc from soil to sorghum and mung beans under field conditions in tropical northern Australia. In: Proceedings of joint FAO/IAEA programme of nuclear techniques in food and agriculture and held in China. IAEA-TECDOC-1497, pp 21–34Google Scholar
  37. United Nations Scientific Committee on Effects of Atomic radiation (UNSCEAR) (1993) Sources and effects of ionizing radiation. UNSCEAR Report, New YorkGoogle Scholar
  38. United Nations Scientific Committee on the Effect of Atomic Radiation (UNSCEAR) (2008) Report to the general assembly. Annex B: exposures of the public and workers from various sources of radiationGoogle Scholar
  39. United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) (2000) Sources and effects of ionizing radiation (Report to the General Assembly). United Nation, New YorkGoogle Scholar
  40. Velasco H, Ayub JJ, Belli M, Sansone U (2004) Temporal Trends of 137Cs and 40K activity flux from soil to plant in grassland ecosystem. J Environ Radioact 71:225–241CrossRefGoogle Scholar
  41. Wai-Ogosu O (1992) Emission from the nitrogenous fertilizer plant. An annual paper delivered to military student officers from Jaji, near Jos, Nigeria at NAFCON complexGoogle Scholar
  42. Zarie KA, Al-Mugren KS (2010) Measurement of natural radioactivity and assessment of radiation hazard in soil samples from Tayma area (KSA). Isotope Radioact Res 42(1):1–9Google Scholar
  43. Ziqiang P, Yin Y, Mingqiang G (1988) Natural radiation and radioactivity in China. Radiat Prot Dosimetry 24(1/4):29–38Google Scholar
  44. Zortzis M, Svoukis E, Tsertos H (2004) A comprehensive study of natural gamma radioactivity levels and associated dose rates from surface soils in Cyprus. Radiat Prot Dosimetry 109:217–224CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  1. 1.Department of PhysicsUniversity of Port HarcourtPort HarcourtNigeria
  2. 2.Department of PhysicsFederal University of Petroleum ResourcesEffurunNigeria

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