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  • Title: A critical review on iodine presence in drinking water access at the Saharawi refugee camps (Tindouf, Algeria).
    Author: Pichel N, Vivar M.
    Journal: J Trace Elem Med Biol; 2017 Jul; 42():32-38. PubMed ID: 28595789.
    Abstract:
    Iodine content in drinking water at the Saharawi refugee camps was analysed to assess the controversy in the origin of the prevalence of goitre among this population. A review on the iodine presence in drinking water reported in the literature was conducted, along with international standards and guidelines for iodine intake and iodine concentration in drinking water were also consulted. Chinese legislation was taken as the reference standard to evaluate the iodine concentration in water as adequate (10-150μg/L) or not (high iodine >150μg/L and iodine excess goitre >300μg/L). Water sampling was conducted in 2015 and 2016 at the Saharawi camps (El Aiun, Awserd, Smara, Boujador and Dakhla) and at the institutional capital of Rabouni. The water supply in the camps is organized in three zones: El Aiun and Awserd where each 'wilaya' receives treated water 20days and raw water another 20days; Smara, Rabouni and Boujador receiving treated water continuously and Dakhla receiving raw water continuously. Results show that Smara, Rabouni and Boujador have access to drinking water with adequate iodine levels, as it occurs in Dakhla where raw water meets the Chinese standard, however in El Aiun and Awserd all population should have access to treated water given the current quality of the raw water supply. External supplies of water and animal milk could be also contributing to the high iodine intake. In conclusion, the contribution of drinking water as the main source of iodine to the urinary iodine concentration (UIC) and goitre prevalence among the Saharawi refugee population is not clear. Further studies should be conducted to assess the iodine content among all the nutritional sources of the population with a detailed study on the daily intake of these foods and drinks, including UIC and goitre prevalence studies.
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