Distribution and potential health risk of groundwater uranium in Korea

Shin, Woosik; Oh, Jeong-Hoon; Choung, Sungwook; Cho, Byong Wook; Lee, Kwang-Sik; Yun, Uk; Woo, Nam Chil; Kim, Hyun Koo

doi:10.1016/j.chemosphere.2016.08.021

Cited by 84 publications

(20 citation statements)

References 25 publications

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“…The main reason was that occurrence of U in groundwater was related to the composition of the soils and rocks, which could act as source of U in waters via dissolution and/or chemical weathering processes that are strongly dependent on pH value. Under the regulation of solution pH, anion exchange, complexation and adsorption were previously suggested to decrease U concentrations in groundwater [13,34,35].…”

Section: Groundwater Samplesmentioning

confidence: 99%

Occurrence and Distribution of Uranium in a Hydrological Cycle around a Uranium Mill Tailings Pond, Southern China

Gao

Guo

et al. 2020

IJERPH

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Uranium (U) mining activities, which lead to contamination in soils and waters (i.e., leachate from U mill tailings), cause serious environmental problems. However, limited research works have been conducted on U pollution associated with a whole soil-water system. In this study, a total of 110 samples including 96 solid and 14 water samples were collected to investigate the characteristics of U distribution in a natural soil-water system near a U mining tailings pond. Results showed that U concentrations ranged from 0.09 ± 0.02 mg/kg to 2.56 × 104± 23 mg/kg in solid samples, and varied greatly in different locations. For tailings sand samples, the highest U concentration (2.56× 104 ± 23 mg/kg) occurred at the depth of 80 cm underground, whereas, for paddy soil samples, the highest U concentration (5.22 ± 0.04 mg/kg) was found at surface layers. Geo-accumulation index and potential ecological hazard index were calculated to assess the hazard of U in the soils. The calculation results showed that half of the soil sampling sites were moderately polluted. For groundwater samples, U concentrations ranged from 0.55 ± 0.04 mg/L to 3.36 ± 0.02 mg/L with a mean value of 2.36 ± 0.36 mg/L, which was significantly lower than that of percolating waters (ranging from 4.56 ± 0.02 mg/L to 12.05 ± 0.04 mg/L, mean 7.91 ± 0.98 mg/L). The results of this study suggest that the distribution of U concentrations in a soil-water system was closely associated with hydrological cycles and U concentrations decreased with circulation path.

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Section: Groundwater Samplesmentioning

confidence: 99%

Occurrence and Distribution of Uranium in a Hydrological Cycle around a Uranium Mill Tailings Pond, Southern China

Gao

Guo

et al. 2020

IJERPH

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“…Uranium adalah unsur utama di antara bahan radioaktif alami yang ada di bebatuan terutama batuan beku dan metamorfosa dari batuan sedimen yang bersifat asam, seperti granit, fosfat, dan black shales kaya organik, yang terdapat di kerak bumi[1] dan air laut [2]. Ada tiga isotop uranium di alam, yaitu U-234, U-235, U-238, yang mana sekitar 99,3% dari total uranium alami adalah uranium-238 [3]. U 3 O 8 dan UO 2 adalah senyawa oksida uranium yang paling umum, dan banyak dihasilkan dari bijih untuk menghasilkan yellow cake (U 3 O 8 ) [4].…”

Section: Pendahuluanunclassified

Ketersediaan Uranium Di Indonesia Untuk Memenuhi Kebutuhan Bahan Bakar PLTN

Bastori¹,

Birmano²

2018

Jurnal Pengembangan Energi Nuklir

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Bahan bakar nuklir merupakan komponen penting PLTN dalam menghasilkan panas. Besarnya kebutuhan bahan bakar nuklir akan mempengaruhi jumlah penyediaan bijih uranium. Demi menjaga keberlangsungan operasi PLTN, sangat penting untuk menjaga keseimbangan kebutuhan dan pasokan uranium. Oleh karena itu, sebelum PLTN dibangun di Indonesia perlu dilakukan analisis ketersediaan uranium, agar dapat dibuat strategi pasokan uranium yang baik. Metoda yang digunakan meliputi mengumpulkan data cadangan uranium di Indonesia, lalu menyusun spread sheet Nuclear Fuel Mass Balance (NFMB) Calculator untuk menghitung jumlah kebutuhan uranium pada setiap tahap siklus bahan bakar nuklir, selanjutnya membandingkan antara kebutuhan riil uranium PLTN dan cadangan uranium yang dimiliki oleh Indonesia. Hasil analisis ini memperlihatkan bahwa PLTN jenis PWR dengan kapasitas 1.000 MWe akan menghasilkan energi listrik sebesar 7.884 GWh dalam setahun. Dengan burn-up 43 GWd/tonU maka kebutuhan bahan bakar nuklir per tahun sekitar 28,93 ton yang didapatkan dari uranium alam U3O8 (yellow cake) sebanyak 244,68 ton atau setara dengan 108.362,2 ton bijih uranium. Dengan cadangan uranium Indonesia 70.000 ton dalam bentuk yellow cake, akan mampu memenuhi kebutuhan bagi 7 unit PLTN dengan kapasitas masing-masing 1.000 MWe yang beroperasi untuk 40 tahun.

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“…Groundwater that has been used as a source of drinking water could contain naturally occurring radioactive materials (NORMs) such as uranium, radium, and radon through long time-scale water-rock interactions. Numerous studies have investigated their occurrences and geological relationships in the groundwater environments [1][2][3][4][5][6], as well as health risks via water ingestion [7][8][9]. Recent studies have begun to focus on the accumulation of NORMs in byproducts of the groundwater treatment process, such as sludge and sediments [10][11][12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Accumulation Mechanism and Effects of Naturally Occurring Radioactive Materials in the Filters of Bottled Mineral-Water Facilities

Shin

Jeong

Han

et al. 2020

Water

Self Cite

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Groundwater contains naturally occurring radioactive materials (NORMs) through water–rock interactions. Although a recent study found that the NORMs are accumulated into the filters utilized in bottled mineral-water facilities, the accumulation mechanism and effects have rarely been studied. This study is, therefore, conducted to determine the mechanism of NORM accumulation in filters during water treatment processes and to provide a first estimate of the level of radiological risk for workers in five bottled-mineral-water facilities. The level of Rn-222 decreased dramatically at the first filters (FF) encountered after passing through water storage tanks, while surface radiation sharply increased. The increase of radioactivity on the FF was mainly caused by the accumulation of short-lived radon progenies through decay processes inside the water tanks. Although the estimated radiological risk was lower under certain circumstances compared to the public dose limit of 1 mSv yr−1, the radiological risk should be properly managed in case of direct and/or close handling of the used filters during filter replacement procedures.

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Distribution and potential health risk of groundwater uranium in Korea

Cited by 84 publications

References 25 publications

Occurrence and Distribution of Uranium in a Hydrological Cycle around a Uranium Mill Tailings Pond, Southern China

Occurrence and Distribution of Uranium in a Hydrological Cycle around a Uranium Mill Tailings Pond, Southern China

Ketersediaan Uranium Di Indonesia Untuk Memenuhi Kebutuhan Bahan Bakar PLTN

Accumulation Mechanism and Effects of Naturally Occurring Radioactive Materials in the Filters of Bottled Mineral-Water Facilities

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