Health risk assessment of heavy metals in the soil-water-rice system around the Xiazhuang uranium mine, China

Wang, Zhenghai; Qin, Haoyang; Liu, Xinyun

doi:10.1007/s11356-018-3955-1

Cited by 54 publications

(21 citation statements)

References 28 publications

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“…Similar situation is also described by Neiva et al [4]. On the contrary, Wang et al [5] reached opposite conclusions when focusing on the soil, water, and rice contamination. This emphasizes the link between Pb and U, together with the fact that their background content was higher than in other mines, which may indicate their common natural origin.…”

Section: Correlation Analysissupporting

confidence: 68%

“…Environmental contamination in the aftermath of uranium mining has been an objective of immense scientific interest worldwide in recent decades [1][2][3][4][5]. Intensive U mining and inappropriate residual material management have resulted in negative environmental impacts [6].…”

Section: Introductionmentioning

confidence: 99%

“…Uranium mining is also associated with heavy metal contamination [5,6,12]. Heavy metals (e.g., As, Cd, Cu, Hg, Pb and Zn) are considered the most dangerous pollutant representatives owing to their toxicity, persistence and bioaccumulation [3,5], which is why they pose a permanent threat to the environment and humans [13]. Even though some heavy metals are essential for plants, they are all toxic in high concentrations [14].…”

Section: Introductionmentioning

confidence: 99%

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The Need to Improve Riparian Forests Management in Uranium Mining Areas Based on Assessment of Heavy Metal and Uranium Contamination

Pecina

Juřička

Kynický

et al. 2020

Forests

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Environmental contamination caused by uranium mining is becoming a worldwide issue due to its negative impact on the environment. The aim of this study is to evaluate the contamination levels of riparian forest stands and their interaction with pollutants on the example of two localities with long and short-term uranium mining closure. Notably high Cu content, which exceeded the lower range of the toxicity limit in 50–75% of the cases, was detected in the leaves. Increased U content also represents a potential risk. As both of the elements have a negative effect particularly on the root system, it can be assumed that the soil-stabilizing and water erosion-reducing functions of the stands may be reduced. Extremely high U content (51.8 mg/kg DA) in the leaves of Aesculus hippocastanum L. indicates its potential for phytoremediation. Significantly higher U content determined at the locality with the long-term closure of mining was probably caused by the instauration of the shallow hydrogeological circulation after mine inundation. Strong correlation between U and Pb suggests identical trend of their uptake and accumulation by plants. A significant dependence of the level of contamination on the distance from its source was not demonstrated. Therefore, the management of mining areas should focus on the protection of riparian forest, which can through its stabilizing and erosion-reducing functions and through suitable species composition effectively prevent spreading of contamination.

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Section: Correlation Analysissupporting

confidence: 68%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The Need to Improve Riparian Forests Management in Uranium Mining Areas Based on Assessment of Heavy Metal and Uranium Contamination

Pecina

Juřička

Kynický

et al. 2020

Forests

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“…Mining has a tremendous impact on the geochemical environment of the mine and its surrounding ecosystems 1 . During the mining of polymetallic sulfide mines, metal sulfides release a large number of heavy-metal ions and acid wastewater 2 , which flow into natural waters, such as rivers, and result in the acidification and accumulation of heavy metals in paddy soils downstream of mining areas 3,4 as well as in heavy metals in crops exceeding the standard in agricultural products, such as rice and maize [5][6][7] . Excessive SO 4 2− retained in the soil leads to soil acidification and the formation of acid sulfate soil [8][9][10] .…”

mentioning

confidence: 99%

Migration and transformation of cadmium in rice - soil under different nitrogen sources in polymetallic sulfide mining areas

Zhang

et al. 2020

Sci Rep

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We conducted pot experiments to assess the bioavailability of cadmium (cd) in contaminated rhizosphere soil and accumulation in rice organs in response to nitrogen (n) supply ((nH 4 ) 2 So 4 , nH 4 no 3 , NH 4 cl). the results showed that the concentration of bioavailable cd in rice rhizosphere soil was (nH 4 ) 2 So 4 treatment > nH 4 cl treatment > nH 4 no 3 treatment at the same level of n application and growth period; the cd concentration in rice roots was (nH 4 ) 2 So 4 treatment > nH 4 no 3 treatment > nH 4 cl treatment; and the cd concentration in rice straw was nH 4 no 3 treatment > nH 4 cl. The Cd concentration in rice roots, straws, and seeds at the maturity stage was (NH 4 ) 2 So 4 treatment > nH 4 Cl treatment. With the same N fertilizer, excessive N promoted Cd accumulation in rice at later growth stages. this suggested that sulfate (So 4 2− ) influenced Cd concentration in rice. NH 4 cl application maintained a low Cd level in different rice organs with the same N level. This confirmed that nH 4 Cl is a safe N source for rice planting in polymetallic sulfide mining areas. The study concludes that appropriate nH 4 cl levels for cd-contaminated paddy soil with high-S-content could obtain rice grains with Cd concentrations below the food safety standards (0.2 or 0.4 mg·kg −1 ).

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“…and radionuclides (e.g., U, Th, Ra, etc.) in mining ecosystems have been widely reported [17][18][19][20]. Radionuclides pollution and toxic metals loading in shallow tailings, discharge water, surface water, groundwater, and paddy soil around the study uranium mining area were found and recognized [21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Characteristics and Assessment of Toxic Metal Contamination in Surface Water and Sediments Near a Uranium Mining Area

Gao

Liu

et al. 2020

IJERPH

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Concentrations of potentially toxic metals including Cd, Cu, Pb, Cr, U, Th in surface water and sediment samples collected from a river were analyzed to assess the contaminations, distribution characteristics, and sources of these metals. The contents of the metals were lower than the standard levels set by World Health Organization (WHO) for drinking water. However, U and Th contents were far beyond the background values of surface water. The concentrations of Cd, Cr, and U in sediments were higher than the background values and the Probable Effect Level (PEL) of sediment quality guidelines (SQGs) which may result in high potential harmful biological effects to aquatic ecosystems. Based on the contamination factor (CF), geo-accumulation index (Igeo), and potential ecological risk index (RI), Cd, Cr, and U were considered to be the metals that mainly contribute to the contamination of sediments. The calculation results also indicated that the sites adjacent to the uranium ore field were highly polluted. Results of cluster analysis, principal component analysis, and correlation analysis revealed that Cr, Pb, U, and Th were highly correlated with each other. These metals mainly originated from both anthropogenic sources and natural processes, especially emissions from uranium mining and quarrying, whereas Cd mostly came from anthropogenic sources (agricultural activities) of the upper reaches of the river.

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Health risk assessment of heavy metals in the soil-water-rice system around the Xiazhuang uranium mine, China

Cited by 54 publications

References 28 publications

The Need to Improve Riparian Forests Management in Uranium Mining Areas Based on Assessment of Heavy Metal and Uranium Contamination

The Need to Improve Riparian Forests Management in Uranium Mining Areas Based on Assessment of Heavy Metal and Uranium Contamination

Migration and transformation of cadmium in rice - soil under different nitrogen sources in polymetallic sulfide mining areas

Characteristics and Assessment of Toxic Metal Contamination in Surface Water and Sediments Near a Uranium Mining Area

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