Evaluation of gross-alpha and gross-beta activity concentrations and assessment of excess lifetime cancer risk in waters of Eğirdir Lake, Turkey

Abstract As a screening procedure, gross alpha and gross beta activity have been developed to determine whether further analysis of water samples related to specific radionuclide is necessary. In China, the determination of gross alpha and gross beta in drinking water was generally based on the HJ standard method: HJ 898-2017, water quality — determination of gross alpha activity — thick source method, and HJ 899-2017, water quality — determination of gross beta activity — thick source method. In this study, 15 water samples from Bahe river in Chan Ba region of Xi’an in China, were pretreated and analyzed by BH1216-III low background alpha and beta scintillation counter. The water samples were collected nearby residential area, wetland park, water conservation district and urban sewage treatment plant as well as other important locations which probably influence on the radioactivity level. The values of the activity concentrations of the gross alpha and beta measured in the water samples ranged from less than LD to 0.183Bq/L with a mean of 0.077Bq/L and 0.073–0.151Bq/L with a mean 0.102Bq/L respectively. All values of samples were lower than the limit level of 0.500Bq/L for gross alpha and 1.000Bq/L for gross beta, indicating that the radioactivity level in Bahe water between Chan Ba region of Xi’an is basically within the normal environmental background.

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Gross Alpha and Gross Beta Activity in the Water Sample from Northern Region of Bangladesh

Journal of Radiation and Nuclear Applications ◽

10.18576/jrna/050104 ◽

2020 ◽

Vol 5 (1) ◽

pp. 21-27

Keyword(s):

Water Sample ◽

Northern Region ◽

Beta Activity ◽

Gross Beta ◽

Gross Alpha ◽

Gross Beta Activity

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Water quality. Gross alpha and gross beta activity. Test method using liquid scintillation counting

10.3403/30349844 ◽

2018 ◽

Keyword(s):

Water Quality ◽

Liquid Scintillation Counting ◽

Liquid Scintillation ◽

Scintillation Counting ◽

Test Method ◽

Beta Activity ◽

Gross Beta ◽

Gross Alpha ◽

Gross Beta Activity ◽

Activity Test

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Gross Alpha and Gross Beta Activity Concentrations in the Dust Fractions of Urban Surface-Deposited Sediment in Russian Cities

Atmosphere ◽

10.3390/atmos12050571 ◽

2021 ◽

Vol 12 (5) ◽

pp. 571

Author(s):

Mohamed Y. Hanfi ◽

Ilia Yarmoshenko ◽

Andrian A. Seleznev

Keyword(s):

Activity Concentration ◽

Alpha Activity ◽

Urban Surface ◽

Beta Activity ◽

Gross Beta ◽

Gross Alpha ◽

Gross Beta Activity ◽

Gross Alpha Activity ◽

Fraction Size ◽

Radiation Measurements

Studies of gross alpha and gross beta activity in road- and surface-deposited sediments were conducted in three Russian cities in different geographical zones. To perform radiation measurements, new methods were applied which allow dealing with low mass and low volume dust-sized (2–100 μm) samples obtained after the size fractionation procedure. The 2–10 μm fraction size had the highest gross beta activity concentration (GB)—1.32 Bq/g in Nizhny Novgorod and Rostov-On-Don, while the 50–100 μm fraction size was most prominent in Ekaterinburg. This can be attributed to the presence of radionuclides that are transferred through natural and anthropogenic processes. The highest gross alpha activity concentration (GA) in fraction sizes was found in Rostov-on-Don city within the 50–100 μm range—0.22 Bq/g. The fraction sizes 50–100 μm have a higher gross alpha activity concentration than 2–10 μm and 10–50 μm fraction sizes due to natural partitioning of the main minerals constituting the urban surface-deposited sediment (USDS). Observed dependencies reflect the geochemical processes which take place during the formation and transport of urban surface sediments. Developed experimental methods of radiation measurements formed the methodological base of urban geochemical studies.

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