Abstract
The study was designed to investigate the distribution of iodine and goitrogens in Igbokoda brackish and Ogbese fresh water bodies in Ondo State, Nigeria. The parameters determined include iodine and goitrogens (Ca 2+ , NO 3 - , Cl - , SCN - , Mg 2+ , magnesium hardness, calcium hardness, total hardness and total coliform counts) in water and sediments of the water bodies. The calculated I/goitrogen ratios (I/Ca 2+ , I/NO3 - , I/CI - , and I/SCN - ) were higher for Igbokoda water (125.00, 2061.86, 133.94, and 0.0431) compared with Ogbese water (33.33, ND, 37.50 and 0.0023) with similar results in the sediment samples of both studied areas with the exception of I/Mg 2+ ratio. This was equally reinforced by the total coliform counts and total hardness (potential goitrogens) which was higher in Ogbese (3.0x10 3 , 70.67±1.15) than Igbokoda (2.7x10 3 , 40.67±1.15) respectively. Considering the iodine goitrogen ratio, Igbokoda brackish water would be a better source of iodine than Ogbese fresh water body for the population dependent on it. KEY WORDS: Iodine, Goitrogens, Fresh Water And Brackish Water Global Jnl Pure & Applied Sciences Vol.10(1) 2004: 161-164
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