Gross Alpha and Beta Radioactivity Evaluation in Drinking Water: Results from the Calabria Region, Southern Italy

2021 ◽  
Author(s):  
Francesco Caridi ◽  
Giovanna Belmusto
Keyword(s):  
Drinking Water ◽  
Southern Italy ◽  
Gross Alpha ◽  
Calabria Region ◽  
Gross Alpha And Beta

scholarly journals Comparison of two different methods for gross alpha and beta activity determination in water samples

2015 ◽  
Vol 13 (1) ◽  
Author(s):  
Marija M. Janković ◽  
Nataša B. Sarap ◽  
Gordana K. Pantelić ◽  
Dragana J. Todorović
Keyword(s):  
Drinking Water ◽  
Water Samples ◽  
Screening Procedure ◽  
Beta Activity ◽  
Gross Beta ◽  
Gross Alpha ◽  
Preliminary Screening ◽  
Activity Determination ◽  
Activity Concentrations ◽  
Gross Alpha And Beta

AbstractMeasurement of the gross alpha and beta activity concentrations in various matrices is suitable as a preliminary screening procedure to determine whether further analysis related to specific radionuclide is necessary. In Serbia, according to current regulations, radioactivity concentrations in drinking water for gross alpha and gross beta should be < 0.5 and < 1.0 Bq L

scholarly journals Gross alpha and beta activities in drinking water from Goiás state, Brazil

2019 ◽  
Vol 7 (3) ◽  
Author(s):  
Raquel Maia Mingote ◽  
Regina Apolinária Nogueira ◽  
Heliana Ferreira Da Costa
Keyword(s):  
Drinking Water ◽  
Statistical Treatment ◽  
Reference Value ◽  
The State ◽  
Gross Beta ◽  
Gross Alpha ◽  
Liquid Scintillation Spectrometer ◽  
Department Of Health ◽  
Gross Alpha And Beta ◽  
High Level

Detection of gross alpha and beta radioactivity is important for a quick surveying of both natural and anthropogenic radioactivity in water. Furthermore, gross alpha and gross beta parameters are included in Brazilian legislation on quality of drinking water. In this work, a low background liquid scintillation spectrometer was used to simultaneously determine gross alpha and gross beta in samples of the public water supplies in the state of Goiás, Brazil, during 2010-2015. Sample preparation involved evaporation to concentrate the sample ten-fold. The results indicate that the water meets the radioactivity standards required by the regulations MS 2914/2011 of the Brazilian Department of Health. Concerning the high level of censored observations, a statistical treatment of data was conducted by using analysis methods of censored data to provide a reference value of the gross alpha and beta radioactivity in drinking water from the state of Goiás. The estimated typical activities are very low, 0.030 Bq.L-1 and 0.058 Bq.L-1, for gross alpha and gross beta, respectively.

scholarly journals An application of LSC method for the measurement of gross alpha and beta activities in spiked water and drinking water samples

Nukleonika ◽  
2015 ◽  
Vol 60 (3) ◽  
pp. 637-642 ◽  
Author(s):  
Gaye Özgür Çakal ◽  
Rufiyet Güven ◽  
Haluk Yücel
Keyword(s):  
Drinking Water ◽  
Water Samples ◽  
Tap Water ◽  
Test Method ◽  
Beta Activity ◽  
Gross Beta ◽  
Gross Alpha ◽  
Energy Agency ◽  
Gross Alpha And Beta ◽  
Drinking Water Samples

Abstract In this study, after the pulse shape calibration of a liquid scintillation counting (LSC) spectrometer (Quantulus 1220), the effi ciency was determined depending on sample quenching parameters. Then, gross alpha and beta activities in two spiked water samples obtained from International Atomic Energy Agency (IAEA) were used for the validation of the ASTM D7283-06 method, which is a standard test method for alpha and beta activity in water by LSC. Later, the drinking water samples (35 tap water and 9 bottled water) obtained from different districts of Ankara, Turkey, were measured. The maximum gross alpha activities are measured to be 0.08 Bq/L for tap waters and 0.13 Bq/L for bottled waters, whereas the maximum gross beta activities are found to be 0.18 Bq/L for tap waters and 0.16 Bq/L for bottled waters. These results indicate that these drinking water samples are below the required limits, which are 0.1 Bq/L for alpha emitting radionuclides and 1 Bq/L for beta emitting radionuclides. As a result, gross alpha and beta activities in drinking water of Ankara were determined accurately by this validated LSC method. It is also worth noting that LSC is a rapid and accurate method for the determination of gross alpha and beta activities without requiring a tedious sample preparation.

scholarly journals Fluoride Polluted Groundwaters in Calabria Region (Southern Italy): Natural Source and Remediation

Water ◽  
2021 ◽  
Vol 13 (12) ◽  
pp. 1626
Author(s):  
Ilaria Fuoco ◽  
Carmine Apollaro ◽  
Alessandra Criscuoli ◽  
Rosanna De Rosa ◽  
Svetlozar Velizarov ◽  
...  
Keyword(s):  
Drinking Water ◽  
Southern Italy ◽  
Threshold Value ◽  
Agricultural Irrigation ◽  
Geochemical Characterization ◽  
Thin Film Composite ◽  
Calabria Region ◽  
Produced Waters ◽  
Ionic Load

Excessive ingestion of fluoride through the consumption of F--rich drinking water could cause adverse effects to human health. For this reason, the WHO has fixed 1.5 mg/L as the maximum F- concentration for drinking water. In this work, a detailed geochemical characterization was performed to define the source of natural pollution of two groundwaters (samples Pc and Bg) coming from deep crystalline aquifers located in the Calabria region (southern Italy) and to define and optimize the most appropriate water treatment strategy. The samples were classified as a F- enriched NaHCO3 type of water. In particular, the F- concentrations observed were 30 mg/L and 8.9 mg/L for the Pc and Bg samples, respectively. Based on the acquired geochemical characterization knowledge, the groundwaters were treated by two thin-film composite NF membranes, namely SPR 10113 and SPR 10114 which have so far not been used for water defluoridation. It was found that the SPR 10114 membrane was able to guarantee water permeates with F- contents lower than the threshold value of 1.5 mg/L for both treated waters, whereas the fluoride content remained above the threshold value when the Pc sample was treated using the SPR 10113 membrane. The obtained permeates were characterized by a low ionic load and were not suitable for long-term consumption as drinking water. However, all of the produced waters did not need any further re-mineralizing processes for agricultural irrigation or other purposes.

Natural Radionuclides in Ground Water in Finland

1988 ◽  
Vol 24 (1-4) ◽  
pp. 163-166 ◽  
Author(s):  
L. Salonen
Keyword(s):  
Drinking Water ◽  
Ground Water ◽  
Natural Radioactivity ◽  
Annual Effective Dose ◽  
Natural Radionuclides ◽  
Nationwide Survey ◽  
Effective Dose Equivalent ◽  
Dose Equivalent ◽  
Gross Alpha ◽  
Gross Alpha And Beta

Abstract A nationwide survey of the natural radioactivity in drinking water was conducted in Finland throughout the 1970s and has continued in the 1980s with the emphasis on drinking water originating from drilled wells, which may be rich in natural radionuclides (mean 222Rn 1020 Bq.l-1, maximum 77,000 Bq.l-1). Between 1981 and 1987, 3000 ground water samples were analysed for 222Rn, some of them for gross alpha and beta, 226Ra, 210Pb, 210Po and U. In recent years the occurrence of 210Pb and 210Po in ground water has been studied. Preliminary results suggest that the contribution of 210Pb and 210Po to the total annual effective dose equivalent is higher than the contribution of 226Ra or U in that water.

Seasonally gross alpha and beta activity concentration in bottom and mid-depth water in Sır Dam Pond (Kahramanmaras, Turkey)

Kerntechnik ◽  
2019 ◽  
Vol 84 (3) ◽  
pp. 194-199
Author(s):  
H. Çam ◽  
A. Küçükönder ◽  
B. G. Durdu ◽  
M. Doğru ◽  
S. Karatepe
Keyword(s):  
Activity Concentration ◽  
Beta Activity ◽  
Gross Alpha ◽  
Gross Alpha And Beta ◽  
Depth Water
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