Thallium: a review of public health and environmental concerns

Peter, A.L. John; Viraraghavan, T.

doi:10.1016/j.envint.2004.09.003

Cited by 666 publications

(363 citation statements)

References 37 publications

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“…In addition, some metals may decrease the plasticity of the cardiorespiratory responses, reducing the survival chances of fi sh under hypoxic conditions, which has been frequently observed in their wild habitats (Monteiro et al 2013). In humans, heavy metals accumulation has hazardous effects on the brain, liver, kidneys, lungs, and mus cles (Petera andViraraghavanb 2005, Youn-Joo 2003). For these reasons, evaluation of heavy metal levels in commercially important fi sh is important from a toxicological perspective, verifying whether there is a signifi cant health risk arising from fi sh consumption.…”

Section: P Arantes Lourenço a Savassi Hélio B Santos Marcos Vtmentioning

confidence: 99%

Bioaccumulation of mercury, cadmium, zinc, chromium, and lead in muscle, liver, and spleen tissues of a large commercially valuable catfish species from Brazil

Arantes

Savassi

Santos

et al. 2016

An. Acad. Bras. Ciênc.

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The increasing amounts of heavy metals entering aquatic environments can result in high accumulation levels of these contaminants in fi sh and their consumers, which pose a serious risk to ecosystems and human health. We investigated the concentrations of mercury (Hg), cadmium (Cd), zinc (Zn), chromium (Cr), and lead (Pb) in muscle, liver, and spleen tissues of Pseudoplatystoma corruscans specimens collected from two sites on the Paraopeba River, Brazil. The level of heavy metals concentrations in the tissues was often higher in viscera (i.e. liver and spleen) than in muscle, and thus, the viscera should not be considered for human consumption. Correlations between metal concentrations and fi sh size were not signifi cant. Although the levels of muscle bioaccumulation of Hg, Cd, Zn, Cr, and Pb, generally do not exceed the safe levels for human consumption, the constant presence of heavy metals in concentrations near those limits considered safe for human consumption, is a reason for concern, and populations who constantly consume fi sh from polluted rivers should be warned. Our fi ndings also indicate that in a river network where certain areas are connected to other areas with high rates of environmental pollutants, people should be cautious about the regular consumption of fi sh, even when the fi sh consumed are caught in stretches of the basin where contamination levels are considered low, since many of the freshwater fi sh with high commercial value, such as the catfi sh surubim, are migratory.

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Section: P Arantes Lourenço a Savassi Hélio B Santos Marcos Vtmentioning

confidence: 99%

Bioaccumulation of mercury, cadmium, zinc, chromium, and lead in muscle, liver, and spleen tissues of a large commercially valuable catfish species from Brazil

Arantes

Savassi

Santos

et al. 2016

An. Acad. Bras. Ciênc.

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“…Tl compounds are extremely toxic to living organisms. Its toxicity to mammals is higher than that of Hg, Cd and Pb (Peter and Viraraghavan, 2005;Babula et al, 2008). Up to 1984, however, Tl was not considered an environmental pollutant.…”

Section: Introductionmentioning

confidence: 99%

“…Under the quality standards of both the United States Environmental Protection Agency (EPA) and the Polish Ministry of the Environment, the maximum permitted concentration of Tl in surface waters is 2 mg.dm x3 . Anthropogenic sources of Tl in the environment are related mainly to coal combustion and ferrous or nonferrous smelting (Peter and Viraraghavan, 2005). Commercial use of Tl is associated with the manufacture of refractive glass and formerly for pesticide production, and it is used as a radioisotope for scintigraphy (Kabata-Pendias and Mickherjee, 2007).…”

Section: Introductionmentioning

confidence: 99%

“…The most pronounced toxic effect of the Tl ion is related to the similarity of Tl(I) to the potassium ion, due to their similar chemical structure and properties. Monovalent Tl disrupts Kcontrolled activity of enzymes and membrane processes such as the mitochondrial respiratory chain, and also stabilization of ribosomes (Le´onard and Gerber, 1997;Arzate and Santamaria, 1998;Peter and Viraraghavan, 2005 Ent et al, 2013). These are all terrestrial species originating from southern France.…”

Section: Introductionmentioning

confidence: 99%

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Diversity of algae in a thallium and other heavy metals-polluted environment

Płachno

Wołowski

Augustynowicz

et al. 2015

Ann. Limnol. - Int. J. Lim.

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-Thallium (Tl) compounds are extremely toxic to living organisms, including algae, but there is a dearth of basic information regarding the mechanisms of action of Tl in the environment and its effects on algae in natural conditions. This study examined algal diversity in an environment highly polluted by Tl. Graniczna Woda stream is contaminated by Tl and other heavy metal compounds (Cd, Pb and Zn). There we found 66 algae taxa representing five phyla, among which euglenophytes prevailed. We found that euglenophytes, including Phacus species, can survive and can show high species diversity in the presence of high Tl concentrations. The fact that these small organisms covered only by a pellicle are able to thrive in such inhospitable habitat, shows a great plasticity of these organisms. It is unclear whether the algae of Graniczna Woda stream have a broad tolerance to harmful conditions or rather represent new varieties/clones that evolved in metal-contaminated waters and are adapted to this environment.

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“…In general, pollution with Tl is restricted to specific areas such as in the vicinity of non-ferrous metal mines, smelters and factories using Tl (Wierzbicka et al, 2004;Peter & Viraraghavan, 2005;Yang et al, 2005;Xiao et al, 2012). In our previous study (Bao et al, 2006), soil bacteria tolerant to 0.49 mM Tl (100 mg Tl l 21 ) had been isolated from a non-polluted garden soil in Japan through a selective cultivation procedure.…”

mentioning

confidence: 99%

Alsobacter metallidurans gen. nov., sp. nov., a thallium-tolerant soil bacterium in the order Rhizobiales

Bao

Sato

Fujimura

et al. 2014

International Journal of Systematic and Evolutionary Microbiology

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A thallium-tolerant, aerobic bacterium, designated strain SK200a-9 T , isolated from a garden soil sample was characterized using a polyphasic approach. Comparative analysis of 16S rRNA gene sequences revealed that strain SK200a-9 T was affiliated with an uncultivated lineage within the Alphaproteobacteria and the nearest cultivated neighbours were bacteria in genera in the family Methylocystaceae (93.3-94.4 % 16S rRNA gene sequence similarity) and the family Beijerinckiaceae (92.3-93.1 %) in the order Rhizobiales. Cells of strain SK200a-9 T were Gram-stain-negative, non-motile, non-spore-forming, poly-b-hydroxybutyrate-accumulating rods. The strain was a chemo-organotrophic bacterium, which was incapable of growth on C1 substrates. Catalase and oxidase were positive. Atmospheric nitrogen fixation and nitrate reduction were negative. The strain contained ubiquinone Q-10 and cellular fatty acids C 18 : 1 v7c, C 18 : 0 , C 16 : 1 v7c and C 16 : 0 as predominant components. The major polar lipids were diphosphatidylglycerol, phosphatidylcholine, phosphatidylethanolamine and phosphatidylglycerol. The DNA G+C content was 64.8 mol%. On the basis of the information described above, strain SK200a-9 T is considered to represent a novel species of a new genus in the order Rhizobiales, for which the name Alsobacter metallidurans gen. nov., sp. nov. is proposed. The type strain of Alsobacter metallidurans is SK200a-9 T (5NBRC 107718 T 5CGMCC 1.12214 T ).

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Thallium: a review of public health and environmental concerns

Cited by 666 publications

References 37 publications

Bioaccumulation of mercury, cadmium, zinc, chromium, and lead in muscle, liver, and spleen tissues of a large commercially valuable catfish species from Brazil

Bioaccumulation of mercury, cadmium, zinc, chromium, and lead in muscle, liver, and spleen tissues of a large commercially valuable catfish species from Brazil

Diversity of algae in a thallium and other heavy metals-polluted environment

Alsobacter metallidurans gen. nov., sp. nov., a thallium-tolerant soil bacterium in the order Rhizobiales

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