scholarly journals Iodine Fractions in Soil and Their Determination

Forests ◽  
2021 ◽  
Vol 12 (11) ◽  
pp. 1512
Author(s):  
Eva Duborská ◽  
Michaela Matulová ◽  
Tomáš Vaculovič ◽  
Peter Matúš ◽  
Martin Urík

Iodine is an essential micronutrient for most living beings, including humans. Despite efforts through various iodine deficiency disorders elimination programs, such as salt iodization, this problem still persists. Sub-clinical deficiencies have often an endemic character, and they are characteristic to certain areas, where iodine is low or inaccessible in the geochemical environment. Thus, the monitoring of iodine speciation and fractionation—especially in soil, drinking water, and food—is needed. Therefore, the aim of this work is to review the iodine distribution in most common soil fractions which relate to its bioavailability; and briefly summarize the available methods for their identification in the environmental matrices as well.

QJM ◽  
2021 ◽  
Vol 114 (Supplement_1) ◽  
Author(s):  
Magda Shoukry Mohamed ◽  
Merhan Samy Nasr ◽  
Salah Hussien El-Halawany ◽  
Ahmed Mohamed Abbas ◽  
Salma Said Hassan Tayeh

Abstract Background The global effort to prevent iodine deficiency disorders through iodine supplementation, such as universal salt iodization, has achieved impressive progress during the last few decades. However, iodine excess, due to extensive environmental iodine exposure in addition to poor monitoring, is currently a more frequent occurrence than iodine deficiency. Iodine excess is a precipitating environmental factor in the development of autoimmune thyroid disease. Aim of the study to evaluate the urinary iodine level as a marker of iodine status in pregnant women in 3rd trimester and assess its relation to thyroid functions. Patients and Methods This Cross Sectional Study was conducted on 100 subjects with their ages ranging from 18-35 years old, pregnant females, at the third trimester, selected from Obstetric Out- patient Clinic of Ain shams University Hospitals. Samples were collected from participants in cairo, during the Spring and Summer from March to August. Results in our study, there was a significant negative correlation between Urinary Iodine level and TSH as Iodine difficient group has the Highest TSH, and the Highest Thyroid Volume, as there was a significant negative correlation between Urinary Iodine level and Thyroid Volume. Conclusion TSH level and Thyroid Volume were global effort to prevent iodine deficiency disorders through iodine supplementation, such as universal salt iodization, has achieved impressive progress during the last few decades. However, iodine excess, due to extensive environmental iodine exposure in addition to significantly higher in Iodine difficient group than Excess iodine group, And FT4 level was lower in Iodine difficient group than excess iodine group.


1998 ◽  
Vol 19 (4) ◽  
pp. 353-358 ◽  
Author(s):  
C. Yamada ◽  
D. Oyunchimeg ◽  
T. Igari ◽  
D. Buttumur ◽  
M. Oyunbileg ◽  
...  

In 1995 Mongolia introduced a national programme of salt iodization to eliminate iodine-deficiency disorders. To investigate the extent of acceptability and utilization of iodized salt, a study of people's knowledge, attitudes, and practice (KAP) was carried out in the capital city, Ulaanbaatar, in 1996 and 1997. A total of 838 people (housewives, parents of schoolchildren, post-partum women, and pregnant women) were interviewed about their KAP regarding iodine-deficiency disorders and iodized salt. In addition, the amount of salt consumption at the household level was examined. Over 95% of the study population knew about iodine-deficiency disorders and iodized salt, and most of them received the information from television and radio. About 90% of them had already used iodized salt. The price of iodized salt is a little higher than that of common salt, but it is still affordable for most people. This study demonstrates the possibility of the expansion of the programme nationwide.


2015 ◽  
Vol 18 (14) ◽  
pp. 2523-2529 ◽  
Author(s):  
Fuad I Abbag ◽  
Saeed A Abu-Eshy ◽  
Ahmed A Mahfouz ◽  
Suliman A Al-Fifi ◽  
Hussein El-Wadie ◽  
...  

AbstractObjectiveTo study (i) the current prevalence of iodine-deficiency disorders among schoolchildren in south-western Saudi Arabia after universal salt iodization and (ii) the iodine content of table salts and water.DesignCross-sectional study on a stratified proportional allocation sample of children. Thyroid gland enlargement was assessed clinically and by ultrasound scanning. Urine, table salt and water samples were taken to measure iodine content.SettingsThe Aseer region, south-western Saudi Arabia.SubjectsSchoolchildren aged 8–10 years.ResultsThe study included 3046 schoolchildren. The total goitre rate amounted to 24·0 %. Prevalence of enlarged thyroid by ultrasound was 22·7 %. The median urinary iodine concentration of the study sample amounted to 17·0 µg/l. The iodine content of table salt ranged from 0 to 112 mg/kg; 22·5 % of the table salt samples were below the recommended iodine content (15 mg/kg) set by WHO. The total goitre rate increased significantly from 19·8 % among children using table salt with iodine content ≥15 mg/kg to reach 48·5 % among children using table salt with 0 mg iodine/kg. Analysis of water samples taken from schools showed that the majority of water samples (78·8 %) had an iodine content of 0 µg/l.ConclusionsThe study documented that 18 years after the national study, and after more than a decade of universal salt iodization in Saudi Arabia, the problem of iodine-deficiency disorders is still endemic in the Aseer region. Efforts should focus on fostering advocacy and communication and ensuring the availability of adequately iodized salt.


2007 ◽  
Vol 28 (3) ◽  
pp. 337-347 ◽  
Author(s):  
Masekonyela Linono Damane Sebotsa ◽  
André Dannhauser ◽  
Pieter L. Jooste ◽  
Gina Joubert

Background Evaluation of the sustainability of iodine-deficiency disorders control programs guarantees successful and sustained virtual elimination of iodine deficiency. The Lesotho universal salt iodization legislation was enacted in 2000 as an iodine-deficiency disorders control program and has never been evaluated. Objectives To assess the sustainability of the salt iodization program in Lesotho, 2 years after promulgation of the universal salt iodization legislation. Methods The proportion to population size method of sampling was used in 2002 to select 31 clusters in all ecological zones and districts of Lesotho. In each cluster, 30 women were selected to give urine and salt samples and 30 schoolchildren to give urine samples. The salt samples were analyzed by the iodometric titration method, and the ammonium persulfate method was used to analyze the urine samples. The chairperson of the iodine-deficiency disorders control program was interviewed on programmatic indicators of sustainability. SAS software was used for statistical analysis of the data. Results The urinary iodine concentrations of very few children (10.1% and 21.5%) and women (9.8% and 17.9%) were lower than 50 μg/L and 100 μg/L, respectively. At the household level, 86.9% of the households used adequately iodized salt. Only four indicators of sustainability have been attained by the salt iodization program in Lesotho. Conclusions Iodine-deficiency disorders have been eliminated as a public health problem in Lesotho, but this elimination is not sustainable. Effective regular monitoring of salt iodine content at all levels, with special attention to iodization of coarse salt, is recommended, together with periodic evaluation of the iodization program.


2009 ◽  
Vol 4 (2) ◽  
pp. 71 ◽  
Author(s):  
Laurentius Aswin Pramono

Gangguan Akibat Kekurangan Iodium (GAKI) merupakan penyebab retardasi mental terbesar di seluruh dunia yang dapat dicegah. Dewasa ini, GAKI masih merupakan masalah kesehatan masyarakat yang penting di Indonesia karena belum mampu mencapai kondisi eliminasi seperti yang diharapkan. Hasil survei tahun 2003 dan Riskesdas 2007 menunjukkan bahwa pencapaian program penanggulangan GAKI di Indonesia masih jauh dari target Universal Salt Iodization dan Indonesia Sehat 2010. Artikel ini bertujuan mengevaluasi berbagai eviden epidemiologi yang berhubungan dengan kebijakan GAKI di Indonesia. Padamasa mendatang, berbagai komitmen lintas sektoral sangat diperlukan bagi pencapaian kondisi eliminasi GAKI. Perhatian klinisi dan ahli epidemiologi ter-hadap permasalahan GAKI di Indonesia masih rendah. Demikian pula, publikasi ilmiah yang mengkaji GAKI dari sudut pandang epidemiologi dan aplikasinya bagi kebijakan kesehatan. Artikel ini diharapkan dapat memberi gambaran dan perspektif epidemiologi yang luas bagi para klinisi dan ahli kesehatan masyarakat.Kata kunci: GAKI (Gangguan Akibat Kekurangan Iodium), penanggulangan, epidemiologi, kebijakan kesehatan.AbstractIDD (Iodine Deficiency Disorders) is the most common cause of preventable mental retardation in the world. Nowadays, IDD still one of the most important public health problems in Indonesia. Up to now, Indonesia has not yet reached the target of IDD elimination as expected. National IDD Survey at 2003 and National Health Survey at 2007 show the achievement of IDD control program in Indonesia is still below the target of Universal Salt Idozation and Indonesia Health 2010 (RAN KPP GAKI strategy). Cross-sectoral commitment is very important for the elimination of IDD in the future. Clinicians and epidemiologist concern for IDD elimination in Indonesia is still low, so does the publications in the field of IDD from epidemiology and health policy perspective. It is expec-ted that this literature review can give broad description and epidemiological perspective for clinicians and public health experts. Key words: IDD (Iodine Deficiency Disorders), control program, epidemiology, health policy.


2013 ◽  
Vol 34 (3) ◽  
pp. 331-337 ◽  
Author(s):  
Wei Huang ◽  
Chaoqiong Peng ◽  
Haixiong Huang ◽  
Jinzhou Zhang ◽  
Jianping Liu ◽  
...  

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