The dietary intake of238U,234U,230Th,232Th,228Th and226Ra from food and drinking water by inhabitants of the Walbrzych region

Pietrzak-Flis, Z.; Suplińska, Maria; Rosiak, L.

doi:10.1007/bf02034268

Cited by 48 publications

(13 citation statements)

References 10 publications

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“…The average 234 U and 238 U concentrations in drinking water from Poland (1995-1996) ranged from 10.2 ± 2.12 to 8.32 ± 2.13 Bq m −3 , the value of activity ratio 234 U/ 238 U was 1.23 ± 0.40. In 1992 content of 234 U was 15.0 ± 0.9 Bq m −3 , and 238 U 7.29 ± 0.44 Bq m −3 [27]. Drinking water can be a source of 75.1% 238 U and 76.9% 234 U (in 1992 respectively 56.5 and 68.1%) found in the human organism.…”

Section: Resultsmentioning

confidence: 98%

“…Yearly annual effective dose is 5.95 ± 0.21 µSv, the highest part comes from 226 Ra (72.4%). Uranium ( 234 U and 238 U) and thorium ( 232 Th, 230 Th and 228 Th) radionuclides contain 14.1% and 13.5% of natural alpha radioactivities in human body [27,28] On the basis of average seasonal (quarterly) and annual flow of the Vistula River and its tributaries we calculated the runoff of 234 U and 238 U and total uranium from the Vistula drainage (Table 4). The values of 234 U and 238 U seasonal flow for the Vistula River and their tributaries were the highest in Vistula delta area (Kiezmark -from 21.20 GBq quarter −1 for 234 U, 17.30 GBq quarter −1 for 238 U and 1.40 t quarter −1 for total uranium in summer to 109.60 GBq quarter −1 for 234 U, 93.30 GBq quarter −1 for 238 U and 7.60 t quarter −1 for total uranium in spring) ( Table 4).…”

Section: Resultsmentioning

confidence: 99%

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The inflow of uranium ²³⁴U and ²³⁸U from the Vistula River catchment area to the Baltic Sea

Skwarzec¹,

Jahnz-Bielawska²,

Boryło³

2010

Radiochimica Acta

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were measured using alpha spectrometry. In winter, the highest concentration of uranium isotopes and total uranium was in the Vistula River water from Malbork (13.13 ± 0.22 Bq m −3 for 234 U, 12.45 ± 0.21 Bq m −3 for 238 U and 1.02 ± 0.30 mg m −3 for total uranium), and the lowest was in water from Dȩblin (1.73 ± 0.07 Bq m −3 for 234 U, 1.55 ± 0.07 Bq m −3 for 238 U and 0.13 ± 0.09 mg m −3 for total uranium). In analyzed river samples uranium isotopes 234 U and 238 U are not in the radioactive equilibrium state. The values of 234 U/ 238 U activity ratio lie between 1.05-1.70. During spring, the highest concentration of uranium isotopes and total uranium was found in the Vistula River water from Malbork (12.36 ± 0.19 Bq m −3 for 234 U, 10.77 ± 0.17 Bq m −3 for 238 U and 0.88 ± 0.25 mg m −3 for total uranium), and the lowest was in water taken from Sandomierz (5.77 ± 0.14 Bq m −3 for 234 U) and Kraków (4.08 ± 0.11 Bq m −3 for 238 U and 0.33 ± 0.18 mg m −3 for total uranium). The values of 234 U/ 238 U activity ratio lie between 1.15-1.64. In summer, the highest concentration of uranium isotopes and total uranium was found in the Vistula River water samples taken from Malbork (8.22 ± 0.21 Bq m −3 for 234 U, 7.60 ± 0.21 Bq m −3 for 238 U and 0.62 ± 0.29 mg m −3 for total uranium), and the lowest was in water from Sandomierz (6.37 ± 0.12 Bq m −3 for 234 U) and Kraków (3.56 ± 0.19 Bq m −3 for 238 U and 0.29 ± 0.33 mg m −3 for total uranium). The values of 234 U/ 238 U activity ratio lie between 1.08-1.95. In autumn the highest concentration of uranium isotopes and total uranium was in the Vistula River water from Malbork (17.80 ± 0.25 Bq m −3 for 234 U, 15.12 ± 0.23 Bq m −3 for 238 U and 1.23 ± 0.34 mg m −3 for total uranium) and the lowest was in water from Toruń (8.15 ± 0.49 Bq m −3 for 234 U) and Kraków (6.34 ± 0.47 Bq m −3 for 238 U and 0.52 ± 0.78 mg m −3 for total uranium). The values of 234 U/ 238 U activity ratio lie between 1.10-1.74. Annually, the southern Baltic Sea is enriched by about 507 GBq uranium isotopes 234 U and 238 U, with 490 GBq going to the Gdańsk Bay and 16.5 GBq to Vistula Lagoon. The highest surface 238 U runoff was observed in spring (to 1200 kBq km −2 quarter −1 for catchment's area), the lowest in summer for Bug with Narew catchment's area to 20 kBq km −2 quarter −1 ). These studies are very important

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Section: Resultsmentioning

confidence: 98%

Section: Resultsmentioning

confidence: 99%

The inflow of uranium ²³⁴U and ²³⁸U from the Vistula River catchment area to the Baltic Sea

Skwarzec¹,

Jahnz-Bielawska²,

Boryło³

2010

Radiochimica Acta

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“…after Pb coprecipitation and dissolution, PbS precipitation was made first with addition of 20-30 g of NH 4 Ac and 8 mL of 0.5 M Na 2 S at pH 6-7. In this case, all the alkaline earth elements remain in solution and are eliminated by centrifugation, and the obtained black PbS and FeS etc.…”

Section: Eliminating the Interference Of Alkaline Earth Elementsmentioning

confidence: 99%

“…The obtained solution (about 150 mL) is neutralized to pH 1.0-1.5 with ammonia solution, and 20-30 g of NH 4 Ac are added and dissolved by heating. fig.…”

Section: Separation Of Pb From Alkaline Earth Elements As Pbsmentioning

confidence: 99%

“…Among the four lead isotopes, 214 Pb and 211 Pb, possessing very short half-lives, low contents and/or poor abundance, are not measurable in the effective time of sample preparation and separation, but 210 Pb and 212 Pb are. Especially, 210 Pb together with its granddaughter 210 Po (T 1/2 : 138.4 d) can be of great concern from the standpoints of radiation protection due to their radiotoxicity, as they can accumulate in sources of food, for instance, in particular forms of marine life, reindeer and caribou, and contribute to about nearly half of the dose from total internal irradiation by ingested natural radionuclides [1][2][3][4][5]. Therefore, the routine monitoring of the 210 Pb concentration is very important.…”

Section: Introductionmentioning

confidence: 99%

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A method for simultaneous determination of²¹⁰Pb and²¹²Pb in drinking water samples

Jia

Torri

Leandro

2012

EPJ Web of Conferences

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A sensitive and accurate method for determination of 210 Pb and 212 Pb in drinking water samples was developed. In the method Pb was pre-concentrated as hydroxides, separated from alkaline earth elements as PbS precipitate, purified by an anion exchange resin chromatography column, precipitated as PbSO 4 for source preparation and counted by a low background β-counter. The procedure was checked with a reference material supplied by the IAEA, and the obtained data were in good agreement with the recommended values, showing the recommended procedure can provide reliable results. The minimum detectable activity of the method was 0.039 mBq L −1 for 210 Pb and 0.033 mBq L −1 for 212 Pb if a 48 liter of water sample was analyzed. Seventeen drinking water samples were analyzed with a Pb recovery of 88.8 ± 5.5%, and the typical activity concentration was in the range of 0.191-15.1 mBq L −1 for 210 Pb and of 1.12-5.77 mBq L −1 for 212 Pb.

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Preliminary studies on 226Ra, 228Ra, 228Th and 40K concentrations in foodstuffs consumed by inhabitants of Accra metropolitan area, Ghana

Awudu

Faanu

Darko

et al. 2011

J Radioanal Nucl Chem

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The dietary intake of238U,234U,230Th,232Th,228Th and226Ra from food and drinking water by inhabitants of the Walbrzych region

Cited by 48 publications

References 10 publications

The inflow of uranium ²³⁴U and ²³⁸U from the Vistula River catchment area to the Baltic Sea

The inflow of uranium ²³⁴U and ²³⁸U from the Vistula River catchment area to the Baltic Sea

A method for simultaneous determination of²¹⁰Pb and²¹²Pb in drinking water samples

Preliminary studies on 226Ra, 228Ra, 228Th and 40K concentrations in foodstuffs consumed by inhabitants of Accra metropolitan area, Ghana

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The dietary intake of238U,234U,230Th,232Th,228Th and226Ra from food and drinking water by inhabitants of the Walbrzych region

Cited by 48 publications

References 10 publications

The inflow of uranium 234U and 238U from the Vistula River catchment area to the Baltic Sea

The inflow of uranium 234U and 238U from the Vistula River catchment area to the Baltic Sea

A method for simultaneous determination of210Pb and212Pb in drinking water samples

Preliminary studies on 226Ra, 228Ra, 228Th and 40K concentrations in foodstuffs consumed by inhabitants of Accra metropolitan area, Ghana

Contact Info

Product

Resources

About

The inflow of uranium ²³⁴U and ²³⁸U from the Vistula River catchment area to the Baltic Sea

The inflow of uranium ²³⁴U and ²³⁸U from the Vistula River catchment area to the Baltic Sea

A method for simultaneous determination of²¹⁰Pb and²¹²Pb in drinking water samples