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Use of radiometric ((234/238)U and (228/226)Ra) and mass spectrometry ((87/86)Sr) methods for studies of the stability of groundwater reservoirs in Central Poland.

Grabowski P, Bem H, Romer RL - J Radioanal Nucl Chem (2014)

Bottom Line: The uranium and radium activity ratios and strontium isotopic ratio varied from 0.629 to 1.471, from 0.396 to 4.961 and from 0.708438 to 0.710344, respectively.On the basis of the uranium and radium activity and the strontium isotopic ratio differences in subsurface water (groundwater) and in river water, any possible water influx between these adjacent reservoirs can be observed.The obtained results exclude any water transport from surface and subsurface water to thermal ground water reservoirs in this region of Poland.

View Article: PubMed Central - PubMed

Affiliation: Department of Chemistry, Technical University of Lodz, Zeromskiego Street 116, 90-924 Lodz, Poland ; Faculty of Building Engineering, Mechanics, and Petrochemistry, Institute of Chemistry, Warsaw University of Technology, Lukasiewicza Street 17, 09-400 Plock, Poland.

ABSTRACT

The uranium ((234)U/(238)U) and radium ((228)Ra/(226)Ra) activity ratios and (87)Sr/(86)Sr isotopic ratio in thermal groundwater, subsurface water (groundwater) and river water from Poddebice and Uniejow were determined. The uranium and radium activity ratios and strontium isotopic ratio varied from 0.629 to 1.471, from 0.396 to 4.961 and from 0.708438 to 0.710344, respectively. The results for the thermal groundwater samples showed that the radiometric method together with mass spectrometry stable strontium isotope ratio measurements can be used for underground water transport studies. On the basis of the uranium and radium activity and the strontium isotopic ratio differences in subsurface water (groundwater) and in river water, any possible water influx between these adjacent reservoirs can be observed. The obtained results exclude any water transport from surface and subsurface water to thermal ground water reservoirs in this region of Poland.

No MeSH data available.


Change of 87Sr/86Sr isotopic ratio in water samples from Uniejow
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Fig6: Change of 87Sr/86Sr isotopic ratio in water samples from Uniejow

Mentions: These conclusions were confirmed by observation of the monthly fluctuations of strontium isotope ratios in these water samples (Figs. 5, 6) The strontium IR for the Ner river and tap water in Poddebice (supplied from subsurface underground water station) have almost identical shapes. The decrease of the strontium IR is caused by agricultural use of fertilizers. In commonly used agricultural fertilizers the strontium IR changes from 0.703400 to 0.715216 [26]. Higher strontium isotopic ratios are associated with use of such fertilizers as magnesium sulfate, potassium sulfate and multiple fertilizers NPK:15-10-15, which are used in Poland in autumn. Lower strontium isotopic ratios are associated with the use of such fertilizers as magnesium nitrate and ammonium nitrate, which mainly are used in the spring. As was shown on Fig. 5 changes in Sr isotopic ratio induced by using of fertilizer in autumn or spring was not observed directly by its using. This is caused by leaching the soil components by rain and its transport to the river.Fig. 5


Use of radiometric ((234/238)U and (228/226)Ra) and mass spectrometry ((87/86)Sr) methods for studies of the stability of groundwater reservoirs in Central Poland.

Grabowski P, Bem H, Romer RL - J Radioanal Nucl Chem (2014)

Change of 87Sr/86Sr isotopic ratio in water samples from Uniejow
© Copyright Policy - OpenAccess
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC4514664&req=5

Fig6: Change of 87Sr/86Sr isotopic ratio in water samples from Uniejow
Mentions: These conclusions were confirmed by observation of the monthly fluctuations of strontium isotope ratios in these water samples (Figs. 5, 6) The strontium IR for the Ner river and tap water in Poddebice (supplied from subsurface underground water station) have almost identical shapes. The decrease of the strontium IR is caused by agricultural use of fertilizers. In commonly used agricultural fertilizers the strontium IR changes from 0.703400 to 0.715216 [26]. Higher strontium isotopic ratios are associated with use of such fertilizers as magnesium sulfate, potassium sulfate and multiple fertilizers NPK:15-10-15, which are used in Poland in autumn. Lower strontium isotopic ratios are associated with the use of such fertilizers as magnesium nitrate and ammonium nitrate, which mainly are used in the spring. As was shown on Fig. 5 changes in Sr isotopic ratio induced by using of fertilizer in autumn or spring was not observed directly by its using. This is caused by leaching the soil components by rain and its transport to the river.Fig. 5

Bottom Line: The uranium and radium activity ratios and strontium isotopic ratio varied from 0.629 to 1.471, from 0.396 to 4.961 and from 0.708438 to 0.710344, respectively.On the basis of the uranium and radium activity and the strontium isotopic ratio differences in subsurface water (groundwater) and in river water, any possible water influx between these adjacent reservoirs can be observed.The obtained results exclude any water transport from surface and subsurface water to thermal ground water reservoirs in this region of Poland.

View Article: PubMed Central - PubMed

Affiliation: Department of Chemistry, Technical University of Lodz, Zeromskiego Street 116, 90-924 Lodz, Poland ; Faculty of Building Engineering, Mechanics, and Petrochemistry, Institute of Chemistry, Warsaw University of Technology, Lukasiewicza Street 17, 09-400 Plock, Poland.

ABSTRACT

The uranium ((234)U/(238)U) and radium ((228)Ra/(226)Ra) activity ratios and (87)Sr/(86)Sr isotopic ratio in thermal groundwater, subsurface water (groundwater) and river water from Poddebice and Uniejow were determined. The uranium and radium activity ratios and strontium isotopic ratio varied from 0.629 to 1.471, from 0.396 to 4.961 and from 0.708438 to 0.710344, respectively. The results for the thermal groundwater samples showed that the radiometric method together with mass spectrometry stable strontium isotope ratio measurements can be used for underground water transport studies. On the basis of the uranium and radium activity and the strontium isotopic ratio differences in subsurface water (groundwater) and in river water, any possible water influx between these adjacent reservoirs can be observed. The obtained results exclude any water transport from surface and subsurface water to thermal ground water reservoirs in this region of Poland.

No MeSH data available.