Fluoride Content in Soil and Vegetation

Kalinić, Nataša; Hršak, Janko; Vadjić, Vladimira; Lambaša-Belak, Živana; Mihelčić, Vladislav; Perković, Barbara

doi:10.1007/s00128-005-0732-x

Cited by 12 publications

(4 citation statements)

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“…Plants by using their roots absorb fluoride from soil and then transport it to different organs, mainly the leaves via xylematic flow (Davison and Weinstein 1998). Different researchers had shown bioconcentration of fluoride from soil and water to plants at various degrees (Fornasiero 2001;Kalinic et al 2005;Kozyrenko et al 2007;Saini et al 2013). Thus, consumption of food, vegetables, and fruits is becoming another potent route for fluoride entry into human food chain along with the present drinking water pathway.…”

Section: Fluoride Contamination In Soilmentioning

confidence: 99%

A study to investigate fluoride contamination and fluoride exposure dose assessment in lateritic zones of West Bengal, India

Samal

Bhattacharya²,

Mallick

et al. 2014

Environ Sci Pollut Res

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To assess the status of severity of fluoride contamination in lateritic Bankura and Purulia districts of West Bengal, concentrations of fluoride in different water sources and agricultural field soils were investigated. The fluoride content (mg/l) was observed to differ with aquifer depths: 0.19-0.47 in dug wells, 0.01-0.17 in shallow tube wells, and 0.07-1.6 in deep tube wells. Fluoride within the World Health Organization (WHO) prescribed range (1.0-1.5 mg/l) was estimated only in ~17% of the total collected water samples while ~67% showed <0.7 mg/l fluoride and thus may impede in the production and maintenance of healthy teeth and bones of the residents, especially children. Fluoride in water was found to be significantly correlated (r = 0.63) with pH. The exposure dose of fluoride (mg/kg/day) from drinking water in infants, children, and adults was estimated in the ranges 0.02-0.53, 0.01-0.24, and 0.01-0.14, respectively against the standard value of 0.05. A clear risk of dental fluorosis is apparent in infants and children of the study area. The fluoride in soil (55-399 mg/kg) was detected to be significantly correlated with the fluoride content in deep tube wells and soil pH (r = 0.56 and 0.71, respectively). The relationships of soil fluoride with total hardness and that with phosphate were not significant. There is a high possibility of bioaccumulation of fluoride from contaminated soil and water of the study area to cultivated crops. This will enhance the quantity of fluoride intake into human food chain in addition to drinking water pathway.

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Section: Fluoride Contamination In Soilmentioning

confidence: 99%

A study to investigate fluoride contamination and fluoride exposure dose assessment in lateritic zones of West Bengal, India

Samal

Bhattacharya²,

Mallick

et al. 2014

Environ Sci Pollut Res

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“…Specifically, long-term phosphate fertilization on farmlands may cause very relevant F − accumulation in soils (Loganathan et al, 2008 ; Kim et al, 2016 ), because F − concentrations in P fertilizers are much higher (up to 150 times) than in soils (Stacey et al, 2010 ). Kalinic et al ( 2005 ) reported that 300–500 mg kg −1 are normal values for total-F in soils, while, as commented by Brougham et al ( 2013 ), concentrations higher than 500–600 mg kg −1 are indicative of F-rich minerals, industrial or agricultural pollution.…”

Section: Introductionmentioning

confidence: 95%

Effects of Changing pH, Incubation Time, and As(V) Competition, on F− Retention on Soils, Natural Adsorbents, By-Products, and Waste Materials

et al. 2018

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The purpose of this work was to elucidate the repercussion of changing pH, incubation time and As(V) competition on fluoride (F−) sorption on forest and vineyard soil samples, pyritic, and granitic materials, as well as on the by-products pine sawdust, oak wood ash, mussel shell ash, fine and coarse mussel shell, and slate processing waste fines. To reach this end, the methodological approach was based on batch-type experiments. The results indicate that, for most materials, F− sorption was very high at the start, but was clearly diminished when the pH value increased. However, oak wood ash and shell ash showed high F− sorption even at alkaline pH, and pine sawdust showed low F− sorption for any pH value. Specifically, F− sorption was close to 100% for both ashes at pH < 6, and around 70% at pH 10, while for forest soil it was close to 90% at pH < 2, and around 60% at pH values near 8. Regarding the effect of incubation time on F− sorption, it was very low for both soils, pyritic material, granitic material, and both kinds of ashes, as all of them showed very rapid F− sorption from the start, with differences being lesser than 10% between sorption at 30 min and 1 month of incubation. However, sawdust and slate fines sorbed 20% of added F− in 30 min, remaining constant up to 12 h, and doubling after 30 days. And finally, mussel shell sorbed 20% at 30 min, increasing to close to 60% when incubation time was 30 days. This means that some of the materials showed a first sorption phase characterized by rapid F− sorption, and a slower sorption in a second phase. As regards the effect of the presence of As(V) on F− sorption, it was almost negligible, indicating the absence of competition for sorption sites. In view of that all, these results could aid to appropriately manage soils and by-products when focusing on F− removal, in circumstances where pH value changes, contact time vary from hours to days, and potential competition between F− and As(V) could take place.

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“…La phytotoxicité du fluor dépend de la concentration des fluorures dans l'atmosphère, de sa spéciation, de la durée d'exposition et de la sensibilité de chaque espèce (Treshow, 1971 ;Vike, 1999 ;Jezierska-Madziar et al, 2003). De plus, la sensibilité de l'espèce varie à l'intérieur même de la variété de la plante, de l'âge des feuilles et des caractéristiques du sol (Kalinic et al, 2005). Pour une exposition suffisamment longue, la phytotoxicité des fluorures est de l'ordre de quelques ugm" 3 (Kisman et al, 1983).…”

Section: Végétationunclassified

Évaluation du potentiel de réduction des fluorures dans les effluents d'alumineries par bio-traitement /

Dumont-Frenette¹

2009

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DÉCEMBRE 2009bibliothèque Paul-Emile-Bouletj UIUQAC Mise en garde/AdviceAfin de rendre accessible au plus grand nombre le résultat des travaux de recherche menés par ses étudiants gradués et dans l'esprit des règles qui régissent le dépôt et la diffusion des mémoires et thèses produits dans cette Institution, l'Université du Québec à Chicoutimi (UQAC) est fière de rendre accessible une version complète et gratuite de cette oeuvre.Motivated by a desire to make the results of its graduate students' research accessible to all, and in accordance with the rules governing the acceptation and diffusion of dissertations and theses in this Institution, the Université du Québec à Chicoutimi (UQAC) is proud to make a complete version of this work available at no cost to the reader.L'auteur conserve néanmoins la propriété du droit d'auteur qui protège ce mémoire ou cette thèse. Ni le mémoire ou la thèse ni des extraits substantiels de ceux-ci ne peuvent être imprimés ou autrement reproduits sans son autorisation.The author retains ownership of the copyright of this dissertation or thesis. Neither the dissertation or thesis, nor substantial extracts from it, may be printed or otherwise reproduced without the author's permission. Dans l'intérêt de voir le comportement du sol et des végétaux en milieu industriel, et en vue d'une implantation à grande échelle, des parcelles expérimentales sont installées sur le site de l'usine Laterrière. Aussi, à partir des trois premières phases préliminaires, la prêle et le pâturin sont les deux espèces retenues pour la partie essai pilote en milieu industriel. De la même manière, la quatrième phase conduit à utiliser le terreau à jardin comme substrat. Quarante-deux parcelles de 1 m 3 sont réparties en fonction de trois niveaux d'exposition. Des parcelles avec ou sans toit sont construites pour étudier l'impact des dépôts humides de fluorures. À l'intérieur de ces parcelles se retrouve aléatoirement mais de façon égale soit la prêle, soit le pâturin. Mais ce projet n'aurait certainement pas pu se concrétiser sans le soutien financier de RioTinto Alcan. Au fil des années, RTA a développé une conscience environnementale et ils sont à la source de divers projets de réduction des rejets. C'est valorisant et motivant de travailler pour un industriel qui ne recherche pas que la performance de ses installations mais aussi qui recherche l'amélioration continue.

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Fluoride Content in Soil and Vegetation

Cited by 12 publications

References 0 publications

A study to investigate fluoride contamination and fluoride exposure dose assessment in lateritic zones of West Bengal, India

A study to investigate fluoride contamination and fluoride exposure dose assessment in lateritic zones of West Bengal, India

Effects of Changing pH, Incubation Time, and As(V) Competition, on F− Retention on Soils, Natural Adsorbents, By-Products, and Waste Materials

Évaluation du potentiel de réduction des fluorures dans les effluents d'alumineries par bio-traitement /

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