Potential health risk in areas of high natural concentrations of thallium and importance of urine screening

Xiao, Tangfu; Guha, Jayanta; Liu, Cong‐Qiang; Zheng, Bo; Wilson, Graham C.; Ning, Zengping; He, Ling

doi:10.1016/j.apgeochem.2007.02.008

Cited by 56 publications

(22 citation statements)

References 14 publications

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“…The poisoning, which affected a large portion of the population (over 400 cases) and caused symptoms such as hair loss and body-aches, was thought largely to be due to Tl contamination in drinking water and vegetables (Zhou and Liu, 1985;Long and Zhang, 1996). Therefore, the symptoms of chronic Tl intoxication still occurred in the area into the 2000s (Xiao et al, 2003;Xiao et al, 2007). Even though water piped in from outside of the area has been provided since the early 1990s, about 40% of the population still rely on the cheaper dug-wells or springs close to the Tl mineralized area and all rely on the natural water sources for agricultural and domestic uses.…”

Section: Thallium Impacts On Human Healthmentioning

confidence: 99%

Medical Geology

2010

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The book series is dedicated to the United Nations International Year of Planet Earth. The aim of the Year is to raise worldwide public and political awareness of the vast (but often under-used) potential of Earth sciences for improving the quality of life and safeguarding the planet. Geoscientific knowledge can save lives and protect property if threatened by natural disasters. Such knowledge is also needed to sustainably satisfy the growing need for Earth's resources by more people. Earths scientists are ready to contribute to a safer, healthier and more prosperous society. IYPE aims to develop a new generation of such experts to find new resources and to develop land more sustainably.

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Section: Thallium Impacts On Human Healthmentioning

confidence: 99%

Medical Geology

2010

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“…Thallium (Tl), a non-essential trace metal that is detrimental to the food chain (Zitko, 1975;Repetto, del Peso, and Repetto 1998), is classified as one of the 13 priority metal pollutants (Keith and Telliard 1979), and its pollution and associated health risks have aroused high concerns around the world (Madejon et al 2007;Xiao et al 2007;Vanek et al 2010). Previous studies have showed that Tl in soil can be taken up easily by food crops, particularly by brassicaceous crops (Tremel et al 1997;LaCoste Robinson, and Brooks 2001;Al-Najar et al 2005).…”

Section: Introductionmentioning

confidence: 98%

“…Consequently, the average daily intake of Tl by the local villagers through consumption of locally planted crops is up to 1.9 mg per person (Xiao et al 2004), which is a rate 1000 times higher than the world average daily intake (2 µg per day, Sabbioni, Ceotz, and Bingnoli 1984). As a result, the intake of high Tl through the locally planted green cabbages is a particular health problem to the local residents and has caused chronic Tl poisoning to the local residents (Xiao et al 2007(Xiao et al , 2012. On the other side, Phytoextraction using plants to remove toxic trace metals from soils, sediments and water have been identified as a good alternative approach due to its environmental friendliness and relative ease of implementation.…”

Section: Introductionmentioning

confidence: 99%

High Accumulation and Subcellular Distribution of Thallium in Green Cabbage (Brassica OleraceaL.Var. CapitataL.)

Ning

Xiao

et al. 2015

International Journal of Phytoremediation

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The accumulation of thallium (Tl) in brassicaceous crops is widely known, but both the uptake extents of Tl by the individual cultivars of green cabbage and the distribution of Tl in the tissues of green cabbage are not well understood. Five commonly available cultivars of green cabbage grown in the Tl-spiked pot-culture trials were studied for the uptake extent and subcellular distribution of Tl. The results showed that all the trial cultivars mainly concentrated Tl in the leaves (101∼192 mg/kg, DW) rather than in the roots or stems, with no significant differences among cultivars (p = 0.455). Tl accumulation in the leaves revealed obvious subcellular fractionation: cell cytosol and vacuole >> cell wall > cell organelles. The majority (∼ 88%) of leaf-Tl was found to be in the fraction of cytosol and vacuole, which also served as the major storage site for other major elements such as Ca and Mg. This specific subcellular fractionation of Tl appeared to enable green cabbage to avoid Tl damage to its vital organelles and to help green cabbage tolerate and detoxify Tl. This study demonstrated that all the five green cabbage cultivars show a good application potential in the phytoremediation of Tl-contaminated soils.

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“…Thallium has attracted increasing environmental concerns due to its high toxicity (De Albuquerque et al 1972;Oves et al 2013;Tremel et al 1997;Xiao et al 2004Xiao et al , 2007Zitko 1975). Thallium pollution in soils, either from natural mineralization or human activities, has been shown to be a major environmental problem (Jia et al 2013;Turner and Pilsbury 2013;Wang et al 2013;Xiao et al 2012).…”

Section: Introductionmentioning

confidence: 99%

Biosorption and bioaccumulation of thallium by thallium-tolerant fungal isolates

Sun

Zhou

Xiao

et al. 2015

Environ Sci Pollut Res

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Little is known about the biosorption and bioaccumulation capacity of thallium (Tl) by microorganisms that occur in Tl-polluted soil. The present study focused on characterizing the biosorption and bioaccumulation of Tl by Tl-tolerant fungi isolated from Tl-polluted soils. Preliminary data showed a positive correlation between the biomass and the biosorbed Tl content. The Tl-tolerant strains were capable of bioaccumulating Tl, up to 7189 mg kg(-1) dry weight. The subcellular distribution of Tl showed obvious compartmentalization: cytoplasm ≫ cell wall > organelle. The majority of Tl (up to 79%) was found in the cytoplasm, suggesting that intracellular compartmentalization appeared to be responsible for detoxification. These findings further suggest the applicability of the fungal isolates for cleanup of Tl in Tl-polluted water and soil.

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Potential health risk in areas of high natural concentrations of thallium and importance of urine screening

Cited by 56 publications

References 14 publications

Medical Geology

Medical Geology

High Accumulation and Subcellular Distribution of Thallium in Green Cabbage (Brassica OleraceaL.Var. CapitataL.)

Biosorption and bioaccumulation of thallium by thallium-tolerant fungal isolates

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