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Environmental Earth Sciences

, Volume 73, Issue 12, pp 7995–8008 | Cite as

Iodine status of soils, grain crops, and irrigation waters in Pakistan

  • Munir H. Zia
  • Michael J. WattsEmail author
  • Amanda Gardner
  • Simon R. Chenery
Original Article

Abstract

A study was carried out across 86 locations of the country to investigate iodine supply potential of soils, grains and underground waters for onward design of an environmental intervention in Pakistan. Wheat crops were the principal crop in this study since it supplies 75 % of calorific energy in an average Pakistani diet. TMAH-extractable iodine in soils provided a geometric mean of 0.66 µg g−1, far lower than the worldwide mean of 3.0 µg g−1 for soil iodine. Bioavailable (water-extractable) iodine concentration had a geometric mean of 2.4 % (of TMAH-extractable iodine). Median iodine concentrations in tube well sourced waters were 7.3 µg L−1. Median wheat grain-iodine concentrations were 0.01 µg g−1. In most of the grain samples, TMAH-extractable iodine was below detection limit of 0.01 µg g−1. The highest wheat grain iodine was measured on a soil having highest TMAH-extractable iodine. An iodine intake of 25.4 µg a day has been estimated based on median wheat grain iodine measured and groundwater consumption compared to world health organisation (WHO) recommendations of iodine intake of 150 µg a day. This nominal intake of iodine is alarming since 60 % of Pakistani households do not consume iodised salt.

Keywords

Iodine deficiency disorders Micronutrient Wheat flour Drinking water Iodised salt Human health 

Notes

Acknowledgments

The authors are grateful to Daniel R.S. Middleton of the University of Manchester and British Geological Survey, UK for his technical contribution in preparation of GIS maps for this research work.

Conflict of interest

All the authors declare that there is no conflict of interest for this research work.

Supplementary material

12665_2014_3952_MOESM1_ESM.doc (108 kb)
Supplementary material 1 (DOC 107 kb)

References

  1. Abrahams PW (2006) Soil geography and human disease: a critical review of the importance of medical cartography. Prog Phys Geog 30:490–512CrossRefGoogle Scholar
  2. Anonymous, Agricultural Statistics of Pakistan (2010–2011) Pakistan Bureau of Statistics, Government of Pakistan. http://www.pbs.gov.pk/content/agricultural-statistics-pakistan-2010-11. Accessed 10 July 2014
  3. APP (Associated Press of Pakistan) (2013) 2.1 mln children born with mental deficiency each year. http://app.com.pk/en_/index.php?option=com_content&task=view&id=132841&Itemid=2. Accessed 10 July 2014
  4. Ashworth DJ (2009) Transfer of iodine in the soil-plant-air system: solid-liquid partitioning, migration, plant uptake and volatilization. In: Preedy VP, Burrow GN, Watson R (eds) Comprehensive handbook of iodine. Academic Press, Oxford, pp 107–118CrossRefGoogle Scholar
  5. Asperer GA, Lansangan LM (1986) The uptake of I-131 in tropical crops. Trace Subst Environ Health 20:457–465Google Scholar
  6. Aston SR, Brazier PH (1979) Endemic goitre, the factors controlling iodine deficiency in soils. Sci Total Environ 11:99–104CrossRefGoogle Scholar
  7. Cao XY, Jiang XM, Kareem A, Dou ZH, Abdul Rakeman M, Zhang ML, Ma T, O’Donnell K, De Long N, De Long GR (1994) Iodination of irrigation water as a method of supplying iodine to a severely iodine-deficient population in XinJiang, China. Lancet 344:107–110CrossRefGoogle Scholar
  8. Chi XZ (1993) Trace element and body health. Chemical Industry Press, BeijingGoogle Scholar
  9. Chilean Iodine Educational Bureau (1952) Iodine content of foods. Springer, LondonGoogle Scholar
  10. Dai JL, Zhang M, Zhu YG (2004a) Adsorption and desorption of iodine by various Chinese soils—I Iodate. Environ Int 30:525–530CrossRefGoogle Scholar
  11. Dai JL, Zhu YG, Zhang M, Huang YZ (2004b) Selecting iodine-enriched vegetables and the residual effect of iodate application to soil. Biol Trace Elem Res 101:265–276CrossRefGoogle Scholar
  12. Dai JL, Zhu YG, Huang YZ, Zhang M, Song JL (2006) Availability of iodide and iodate to Spinach in relation to total iodine in soil solution. Plant Soil 289:301–308CrossRefGoogle Scholar
  13. Diosady LL, Alberti JO, Mannar MGV, FitzGerald S (1998) Stability of iodine in iodized salt used for correction of iodine-deficiency disorders, II. Food Nutr Bull 19:240–250Google Scholar
  14. Draper A, Lewis J, Malhotra N, Wheele E (1993) The energy and nutrient intakes of different types of vegetarians, a cause for supplements? Brit J Nutr 69:3–19CrossRefGoogle Scholar
  15. Dunn JT (1998) Editorial: what’s happening to our iodine? J Clin Endocr Metab 83:3398–3400Google Scholar
  16. Eğri M, Bayraktar N, Temel I, Ercan C, Ilgar M, Pehlivan E, Karaoğlu L, Güneş G, Genç M (2006) Prevalence of goiter and urinary iodine status of 7-11-year-old children in Malatya province, Turkey. Turk J Pediatr 48:119–123Google Scholar
  17. Eğri M, Ercan C, Karaoglu L (2009) Iodine deficiency in pregnant women in eastern Turkey (Malatya Province): 7 years after the introduction of mandatory table salt iodization. Public Health Nutr 12:849–852CrossRefGoogle Scholar
  18. Fordyce FM, Johnson CC, Navaratna UR, Appleton JD, Dissanayake CB (2000) Selenium and iodine in soil, rice and drinking water in relation to endemic goitre in Sri Lanka. Sci Total Environ 263:127–141CrossRefGoogle Scholar
  19. Fordyce FM, Stewart AG, Ge X, Jiang JY, Cave M (2002) Environmental controls in IDD: a case study in the Xinjiang Province of China. British Geological Survey Technical Report, CR/01/045N. pp 130Google Scholar
  20. Fuge R (1989) Iodine in waters: possible links with endemic goitre. Appl Geochem 4:203–308CrossRefGoogle Scholar
  21. Fuge R (1990) The role of volatility in the distribution of iodine in the secondary environment. Appl Geochem 5:357–360CrossRefGoogle Scholar
  22. Fuge R (1996) Geochemistry of iodine in relation to iodine deficiency diseases. In: Appleton JD, Fuge R, McCall GJH (eds) Environmental geochemistry and health, geological society special publication 113. The Geological Society, London, pp 201–211Google Scholar
  23. Fuge R (2005) Soils and iodine deficiency. In: Selinus O (ed) Essentials of medical geology. Academic Press, San Diego, pp 417–433Google Scholar
  24. Fuge R, Ander EL (1998) Geochemical barriers and the distribution of iodine in the secondary environment: implications for radio-iodine. In: Nicholson K (ed) Energy and the environment: geochemistry of fossil, nuclear and renewable resources. MacGregor Science, Aberdeen, pp 163–170Google Scholar
  25. Fuge R, Long AM (1989) Iodine in the soils of North Derbyshire. Environ Geochem Health 11:25–29CrossRefGoogle Scholar
  26. Fukui M, Fujikawa Y, Satta N (1996) Factors affecting interaction of radio iodide and iodate species with soil. J Environ Radioactiv 31:199–216CrossRefGoogle Scholar
  27. Gallup-Gilani Pakistan (2011) 30 Years of Polling on Eating Habits of Pakistanis (1980–2010). http://www.gilanifoundation.com/homepage/30years/30yearsOfPollingOnEatingHabitsOfPakistanis.pd. Accessed 10 July 2014
  28. Goindi G, Karmarkar MG, Kapil U, Jagannathan J (1995) Estimation of losses of iodine during different cooking procedures. Asia Pa J Clinic Nutr 4:225–227Google Scholar
  29. Herrett RA, Hatfield HH Jr, Crosby DG, Vlitos AJ (1962) Leaf abscission induced by the iodide ion. Plant Physiol 37:358–363CrossRefGoogle Scholar
  30. Hu Q, Moran JE, Blackwood V (2007) Geochemical cycling of iodine species in soils. In: Preedy VR, Burrow GN, Watson RR (eds) Comprehensive handbook of iodine: nutritional, biochemical, pathological, and therapeutic aspects. Elsevier, San Diego, pp 93–105Google Scholar
  31. ICCIDD (International council for control of iodine deficiency disorders) (2011) Iodine deficiency continues to plague Pakistan. IDD News 39: 1–3. http://www.iccidd.org/newsletter/idd_nl_nov11_pakistan.pdf. Accessed 09 July 2014
  32. ICCIDD (International council for control of iodine deficiency disorders) (2013) Striking progress against IDD in Pakistan. IDD newsletter 41: 1–6. http://www.iccidd.org/newsletter/idd_feb13_pakistan.pdf. Accessed 10 July 2014
  33. Jiang XM, Cao XY, Jiang JY, Tai M, James DW, Rakeman MA, Dou ZH, Mamette M, Amette K, Zhang ML, Delong GR (1997) Dynamics of environmental supplementation of iodine: four years’ experience of iodination of irrigation water in Hotien, Xinjiang, China. Arch Environ Health 52:399–408CrossRefGoogle Scholar
  34. Johnson CC (1980) The geochemistry of iodine and a preliminary investigation into its potential use as a pathfinder element in geochemical exploration. Dissertation, University college of WalesGoogle Scholar
  35. Johnson CC (2003a) Database of the iodine content of soils populated with data from published literature. British Geological Survey Commissioned Report, CR/03/004N. http://nora.nerc.ac.uk/10725/1/CR03004N.pdf. Accessed 10 July 2014
  36. Johnson CC (2003b) The geochemistry of iodine and its application to environmental strategies for reducing risks from iodine deficiency disorders. British Geological Survey Commissioned Report, CR/03/057N, pp. 54. http://nora.nerc.ac.uk/10724/1/CR03057N.pdf. Accessed 10 July 2014
  37. Johnson CC, Strutt MH, Hmeurras M, Mounir M (2002) Iodine in the environment of the High Atlas Mountains, Morocco. British Geological Survey Commissioned Report, CR/02/196N, p. 72. http://www.bgs.ac.uk/research/international/dfid-kar/CR02196N_col.pdf. Accessed 10 July 2014
  38. Kashparov V, Colle C, Zwarich S, Yoschenko V, Levchuk S, Lundin S (2005) Soil-to-plant halogens transfer studies 1. Root uptake of radioiodine by plants. J Environ Radioactiv 79:187–204CrossRefGoogle Scholar
  39. Lim KK, Rohana DS, Zawiah A, Malaimoon WM (2006) An evaluation of the effectiveness of a water iodinator system to supply iodine to selected schools in Terengganu, Malaysia. Trop Biomed 23:172–178Google Scholar
  40. Mackowiak CL, Grossl PR (1999) Iodate and iodide effects on iodine uptake and partitioning in rice (Oryza sativa L.) grown in solution culture. Plant Soil 212:135–143CrossRefGoogle Scholar
  41. Muramatsu Y, Uchida S, Sumiya M, Ohmomo Y, Obata H (1989) Tracer experiments on transfer of radio-iodine in the soil–rice plant system. Water Air Soil Poll 45:157–171Google Scholar
  42. Muramatsu Y, Yoshida S, Ban-Nai T (1995) Tracer experiments on the behavior of radioiodine in the soil-plant-atmosphere system. J Radioanal Nucl Ch 194:303–310CrossRefGoogle Scholar
  43. Pennington JA, Schoen SA, Salmon GD, Young B, Johnson RD, Marts RW (1995) Composition of core foods of the US food supply, 1982–1991. J Food Comp Anal 8:171–217CrossRefGoogle Scholar
  44. Schmitz K, Aumann DC (1994) Why are the soil-to-pasture transfer factors, as determined by field measurements, for I127 lower than for I129? J Environ Radioactiv 24:91–100CrossRefGoogle Scholar
  45. Sheppard SC, Evenden WG (1992) Response of some vegetable crops to soil-applied halides. Can J Soil Sci 72:555–567CrossRefGoogle Scholar
  46. Sheppard MI, Thibault DH (1992) Chemical behaviour of iodine in organic and mineral soils. Appl Geochem 7:265–272CrossRefGoogle Scholar
  47. Sheppard SC, Evenden WG, Amiro BD (1993) Investigation of the soil-to-plant pathway for I, Br, C1 and F. J Environ Radioactiv 21:9–32CrossRefGoogle Scholar
  48. Shetaya WH, Young SD, Watts MJ, Ander EL, Bailey EH (2012) Iodine dynamics in soils. Geochim Cosmochim Ac 77:457–473CrossRefGoogle Scholar
  49. Shimamoto YS, Takahashi Y, Terada Y (2011) Formation of organic iodine supplied as iodide in a soil-water system in Chiba, Japan. Environ Sci Technol 45:2086–2092CrossRefGoogle Scholar
  50. Shinonaga T, Gerzabek MH, Strebl F, Muramatsu Y (2001) Transfer of iodine from soil to cereal grains in agricultural areas of Austria. Sci Total Environ 267:33–40CrossRefGoogle Scholar
  51. Singh JL, Sharma ME, Prasad S, Kumar M, Gupta GC, Patnaik AK (2002) Prevalence of endemic goitre in goats in relation to iodine status of the soil, water and fodder. Indian Vet J 79:657–660Google Scholar
  52. Stewart AG, Carter J, Parker A, Alloway BJ (2003) The illusion of environmental iodine deficiency. Environ Geochem Health 25:165–170CrossRefGoogle Scholar
  53. Tsukada H, Takeda A, Tagami K, Uchida S (2008) Uptake and distribution of iodine in rice plants. J Environ Qual 37:2243–2247CrossRefGoogle Scholar
  54. Um W, Serne RJ, Krupka KM (2004) Linearity and reversibility of iodide adsorption on sediments from Hanford, Washington under water saturated conditions. Water Res 38:2009–2016CrossRefGoogle Scholar
  55. UNICEF (The United Nations Children’s Fund) (2014) Micronutrients—Iodine, Iron and Vitamin A. http://www.unicef.org/nutrition/index_iodine.html. Accessed 10 July 2014
  56. Watts MJ, Mitchell CJ (2009) A pilot study on iodine in soils of Greater Kabul and Nangarhar provinces of Afghanistan. Environ Geochem Health 31:503–509CrossRefGoogle Scholar
  57. Watts MJ, O’Reilly J, Maricelli A, Coleman A, Ander EL, Ward NI (2010) A snapshot of environmental iodine and selenium in La Pampa and San Juan provinces of Argentina. J Geochem Explor 107:87–93CrossRefGoogle Scholar
  58. Weng HX, Yan AL, Hong CL, Qin YC, Pan L, Xie LL (2009) Biogeochemical transfer and dynamics of iodine in a soil–plant system. Environ Geochem Health 31:401–411CrossRefGoogle Scholar
  59. Whitehead DC (1984) The distribution and transformations of iodine in the environment. Environ Int 10:321–339CrossRefGoogle Scholar
  60. WHO (World Health Organization) (2007) Assessment of iodine deficiency disorders and monitoring their elimination: a guide for programme managers. 3rd edition, Geneva. http://whqlibdoc.who.int/publications/2007/9789241595827_eng.pdf. Accessed 09 July 2014
  61. Yamada H, Kiriyama T, Yonebayashi K (1996) Determination of total iodine in soils by inductively coupled plasma mass spectrometry. Soil Sci Plant Nut 42:859–866CrossRefGoogle Scholar
  62. Yang XE, Chen WR, Feng Y (2007) Improving human micronutrient nutrition through biofortification in the soil-plant system: china as a case study. Environ Geochem Health 29:413–428CrossRefGoogle Scholar
  63. Yoshida S, Muramatsu Y, Uchida S (1992) Studies on the sorption of I- (Iodide) and IO3- (Iodate) onto Andosols. Water Air Soil Poll 63:321–329CrossRefGoogle Scholar
  64. Yuita K (1982) Iodine, bromine, and chlorine contents in soils and plants of Japan. I. Iodine, bromine and chlorine contents in soils and plants of the basin of the Miomote river. Soil Sci Plant Nutr 28:315–336CrossRefGoogle Scholar
  65. Zhang LJ, Chen ZW, Wang JY, Bao JM (2000) Iodine loss from iodized salt during processing, sale and consumption. Zhejiang J Preventive Med 12:32–34 (in Chinese)Google Scholar
  66. Zhu YG, Huang YZ, Hu Y, Liu YX (2003) Iodine uptake by spinach (Spinacia oleracea L.) plants grown in solution culture: effects of iodine species and solution concentrations. Environ Int 29:33–37CrossRefGoogle Scholar
  67. Zimmermann MB (2008) Iodine requirements and the risks and benefits of correcting iodine deficiency in populations. J Trace Elem Med Biol 22:81–92CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • Munir H. Zia
    • 1
    • 2
  • Michael J. Watts
    • 2
    Email author
  • Amanda Gardner
    • 2
  • Simon R. Chenery
    • 2
  1. 1.Research and Development SectionFauji Fertilizer Company LimitedRawalpindiPakistan
  2. 2.Inorganic Geochemistry, Centre for Environmental GeochemistryBritish Geological SurveyNottinghamUK

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