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- Gårdestedt, Caroline, et al.
(författare)
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Zinc in Soils, Crops, and Meals in the Niger Inland Delta, Mali
- 2009
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Ingår i: Ambio. - 0044-7447 .- 1654-7209. ; 38:6, s. 334-338
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Tidskriftsartikel (refereegranskat)abstract
- Zinc deficiency is a problem in developing countries and not least so in Africa. This concerns both agriculture and human food provision. Zinc deficiency in soils may severely decrease yields, whereas insufficient zinc in food intake primarily affects the immune defense, notably in children. The present investigation concerned zinc availability in soils, crops, and food in the Niger inland delta in Mali. Agricultural soils are largely deficient in plant-available zinc, however, soils in close vicinity to habitation show elevated zinc concentrations. The zinc concentrations in crops are low; in rice, they are about half of reference ranges. Zinc intake assessed from a number of sampled meals was about half the recommended requirement. When zinc concentration is higher phytate was also high, which made the zinc less available. In spite of a recorded sufficient intake of iron, anemia is common and is most likely because of the high phytate concentration in the cereal-dominated diet. Increasing zinc and iron availability would be possible through the use of malting, fermentation, and soaking in food preparation. Finally, in the long run, any trace element deficiency, especially that of zinc in agricultural soils needs to be amended by addition of appropriate amounts in commercial fertilizers.
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| 2. |
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| 3. |
- Jacks, Birgitta, et al.
(författare)
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Zinc deficiency in the Niger inland delta, Mali
- 2007
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Ingår i: Annals of Nutrition and Metabolism. - : KARGER. - 0250-6807 .- 1421-9697. ; 51, s. 223-223
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)
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| 4. |
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| 5. |
- Sall, Moussa, et al.
(författare)
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Breastfeeding and weaning in a village in the Niger Inland Delta, Mali
- 2011
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Ingår i: African Journal of Midwifery. - London : MA Healthcare Ltd. - 2052-4293. ; 5:1, s. 141-146
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Tidskriftsartikel (refereegranskat)abstract
- The aim of the study was to investigate the breastfeeding and weaning customs and their influence on the survival of infants in the village of Niafunké, Mali. A questionnaire with 22 questions was put to 30 mothers, 15 traditional birth attendants, and 5 midwives. All the mothers used colostrum. However, before breastfeeding was initiated the children were given date juice, which constitutes a considerable infection risk. Weaning was started at the age of 6 to 9 months. The breastfeeding and weaning customs are largely satisfying; nevertheless, the child mortality before the age of 5 years was extremely high, at 56 children out of 131 born. The majority of these, 40, died during their first year of life. The infant mortality showed two periods of greatly elevated death rate: right after birth and during the period of weaning. The mortality after birth may depend on the lack of educated midwives as well as infections caused by water being given with the breast milk. The mortality at weaning obviously depends on poor hygienic conditions, possibly combined with a documented insufficient zinc intake weakening the immune system. Abrupt weaning practised when a new pregnancy is experienced is also a contributing factor. The breastfeeding may be interrupted over a single day, causing both physical and mental stress for the child. The mothers' information about breastfeeding and weaning comes from a number of sources: the parents, the traditional birth attendants, religious authorities, and the radio, which seems to have a good reach into the society.
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| 7. |
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| 8. |
- Annaduzzaman, Md., et al.
(författare)
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Tubewell platform color : A low-cost and rapid screening tool for arsenic and manganese in drinking water
- 2013
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- Presence of high level of geogenic arsenic (As) in groundwater is one of the major and adverse drinking water quality problem all over the world, especially in Southeast Asia, where groundwater is the prominent drinking water source. Bangladesh is already considered as one of the most As affected territories, where As contamination in the groundwater is key environmental disasters. Recently besides As, presence of high level of manganese (Mn) in drinking water has also got attention due to its neurological effect on children. It becomes very essential to formulate a reliable safe drinking water management policy to reduce the health threat caused by drinking As and Mn contained groundwater. The development of a simple low cost technique for the determination of As and Mn in drinking water wells is an important step to formulate this policy. The aim of this study was to evaluate the potentiality of tubewell platform color as low-cost, quick and convenient screening tool for As and Mn in drinking water wells (n=272) in a highly arsenic affected area on Matlab, Southeastern Bangladesh.The result shows strong correlation between the development of red color stain on tubewell platform and As enrichment in the corresponding tubewell water compared to WHO drinking water guideline (10 μg/L) as well as Bangladesh drinking water standard (BDWS) (50 μg/L), with certainty values of 98.7% and 98.3% respectively. The sensitivity and efficiency of red colored platforms to screen high As water in tubewells are 98% and 97% respectively at 10 μg/L, whereas at cut-off level of 50μg/L both sensitivity and efficiency values are 98%. This study suggests that red colored platform could be potentially used for primary identification of tubewells with elevated level of As and thus could prioritise sustainable As mitigation management in developing countries. Due to lack of tubewells with black colored platform in the study area, the use of platform color concept for screening of Mn enriched water in the wells have not been tested significantly, which requires further study.Acknowledgements: This study was carried out with support from the Liuuaeus-Palme Academic Exchange Programme supported by International Programs Office (IPK) and the KTH led joint collaborative action research project on Sustainable Arsenic Mitigation- SASMIT (Sid Contribution 750000854).
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| 9. |
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Arsenic Research and Global Sustainability: Proceedings of the Sixth International Congress on Arsenic in the Environment (As2016), June 19-23, 2016, Stockholm, Sweden
- 2016
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Proceedings (redaktörskap) (refereegranskat)abstract
- The Congress "Arsenic in the Environment" offers an international, multi- and interdisciplinary discussion platform for research and innovation aimed towards a holistic solution to the problem posed by the environmental toxin arsenic, with considerable societal impact. The congress has focused on cutting edge and breakthrough research in physical, chemical, toxicological, medical, agricultural and other specific issues on arsenic across a broader environmental realm. The Congress "Arsenic in the Environment" was first organized in Mexico City (As2006) followed by As2008 in Valencia, Spain, As2010 in Tainan, Taiwan, As2012 in Cairns, Australia and As2014 in Buenos Aires, Argentina. The 6th International Congress As2016 was held June 19-23, 2016 in Stockholm, Sweden and was entitled Arsenic Research and Global Sustainability.
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| 10. |
- Aullón Alcaine, Anna, et al.
(författare)
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Distribution and mobility of geogenic arsenic in the shallow aquifers of the northeast of La Pampa, Argentina
- 2012
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Ingår i: Understanding the Geological and Medical Interface of Arsenic, As 2012 - 4th International Congress: Arsenic in the Environment. - 9780415637633 ; , s. 132-134
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Konferensbidrag (refereegranskat)abstract
- Groundwater contamination with elevated Arsenic (As) and other toxic trace elements has been studied in the central part of the vast Chaco-Pampean Plain, in the city of Quemú Quemú, northeastern La Pampa, Argentina. The groundwater samples were mostly alkaline with pH ranging up to 9.18, oxidizing and characterized by high EC. The concentration of total As (5.58-535 μg/L) and fluoride (0.5-14.2 mg/L) in some samples exceeded the recommended WHO drinking water guideline and the Argentine national drinking water standard. Arsenic was positively correlated with bicarbonate (HCO 3 -), Boron (B), Fluoride (F) and Vanadium (V). Long-term consumption of the groundwater could pose a severe health threat for the local community.
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