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

Atmosphere ◽  
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.

scholarly journals Gross Alpha and Gross Beta Activity Concentrations in Dust Fraction of Urban Surface Deposited Sediment in Russian Cities

2021 ◽  
Author(s):  
Mohamed Y. Hanfi ◽  
Andrian A. Seleznev ◽  
Ilia Yarmoshenko
Keyword(s):  
Activity Concentration ◽  
Alpha Activity ◽  
Urban Surface ◽  
Beta Activity ◽  
Gross Beta ◽  
Gross Alpha ◽  
Gross Beta Activity ◽  
Gross Alpha Activity ◽  
Fraction Size ◽  
Radiation Measurements

Study of gross alpha (GA) and gross beta (GB) activity in road and surface deposited sediments were performed in various geographical areas in three Russian cities. To perform radiation measurements, new methods were applied which allow dealing with low mass and low volume dust size (2-100μm) samples obtained after the size fractionation procedure. The 2-10 μm fraction size has the highest gross beta activity concentration (GB)– 1.32Bq/g in Nizhny Novgorod (NN) and Rostov-On-Don (RND) while the 50-100 μm fraction size in Ekaterinburg. This is maybe associated with the subsistence of radionuclides that conveyed through natural processes and anthropogenic applications. The highest gross alpha activity concentration (GA) in fraction sizes was found in Rostov-on-Don city within the 50-100 μm– 0.22Bq/g. The fraction size 50-100 μmhas a higher gross alpha activity concentration than 2-10 and 10-50 μmfraction sizes due to natural partitioning of the main minerals constituting the urban surface deposited sediment (USDS). The geochemical processes that occur during the formation and transportation of USDS are reflected in the observed dependencies.Developed experimental methods of radiation measurements allowed to the extent the methodological base of urban geochemical studies.

scholarly journals Study of gross alpha and gross beta activity concentration in sediment and soil samples of three southern districts of Tamil Nadu

2016 ◽  
Vol 4 (2) ◽  
pp. 319
Author(s):  
A. Priya Latha ◽  
G. Shanthi
Keyword(s):  
Urban Area ◽  
Tamil Nadu ◽  
Activity Concentration ◽  
Alpha Activity ◽  
Soil Samples ◽  
Beta Activity ◽  
Gross Beta ◽  
Gross Alpha ◽  
Gross Beta Activity ◽  
Gross Alpha Activity

<div><p><em>Human can be exposed to the radiation emitting from different radioactive sources depending upon their activities and surroundings. Human activities have contributed to the increased concentration of some radionuclides in the environment. A survey of the gross alpha and gross beta activity in soil samples collected along the three southern districts of TamilNadu has been carried out. Determination of the gross alpha and gross beta activity concentration are done by using ZnS (Ag) and low beta counter. The gross alpha activity varies from 162.3 Bq/kg to 3679.6 Bq/kg near the sea and ranges from 107.5 Bq/kg to 1774.1 Bq/kg 150 m away from the sea. The gross alpha activity in the sub-urban area varies from 53.67 Bq/kg to 644.12 Bq/kg. The gross beta activity concentration in the soil ranges from 388.8 Bq/kg to 40111.1 Bq/kg in the coastal region (near the sea) and ranges from 669.06 Bq/kg to13278.4 Bq/kg (150 m away from the sea). While the gross beta activity concentration in the sub-urban area varies from 1103.05 Bq/kg to 4202.12 Bq/kg. The obtained values shows soil from the sampled locations may pose some long time health hazards to the public. Statistical analysis are also performed between the soil samples. <strong></strong></em></p></div>

scholarly journals Study of Gross Alpha and Gross Beta Activities in Rock Samples of Western Ghats in Kanyakumari District

2016 ◽  
Vol 5 (1) ◽  
pp. 1 ◽  
Author(s):  
M. Sheela Udhaya Roselin ◽  
G. Shanthi
Keyword(s):  
Western Ghats ◽  
Alpha Activity ◽  
Zinc Sulphide ◽  
Beta Activity ◽  
Gross Beta ◽  
Gross Alpha ◽  
Rock Samples ◽  
Gross Beta Activity ◽  
Gross Alpha Activity ◽  
Beta Counter

<div><p><em>The present study was carried out to examine the gross alpha and gross beta activities in rock samples in Kanyakumari district. Twenty Four samples were collected from different locations in Western Ghats. The gross alpha and gross beta activities were measured by using zinc sulphide scintillation detector and low beta counter. In this present study the gross alpha activity was maximum at L22 (1397.85 Bq/Kg) and minimum at L7 (</em><em>53.76 Bq/Kg</em><em>) with an average of 582.44Bq/Kg and the gross beta activity was maximum at L2 (3815.79 Bq/Kg) minimum at L7 (833.33 Bq/kg) with an average of 2081.51Bq/Kg. </em></p></div>

scholarly journals Screening Level of Gross Alpha and Beta Activities in Building Materials

2020 ◽  
Vol 2020 ◽  
pp. 1-4
Author(s):  
Elassaad Jemii
Keyword(s):  
Gas Flow ◽  
Building Materials ◽  
Beta Activity ◽  
Significant Activity ◽  
Gross Beta ◽  
Gross Alpha ◽  
Gross Beta Activity ◽  
Gross Alpha Activity ◽  
Average Activity ◽  
Gross Alpha And Beta

The objective of the present study is the screening of the gross alpha and gross beta activity of some building materials commercialized in Saudi Arabia. The measurements were carried out using a gas flow proportional counter. The study has shown that the gross alpha activity ranged between 0.21 and 8.27 Bq/kg with an average activity of about 1.96 Bq/kg, whereas the gross beta activity ranged between 6.47 and 276.47 Bq/kg with an average activity of about 65.27 Bq/kg. The obtained values of gross alpha and beta activities are in the worldwide range and no significant activity was observed that accentuate the attention, which show that no radiation risks come from these building materials and, therefore, from their origin areas.

Study of Gross Alpha and Gross Beta Activity in Bottled Water in Dhaka City of Bangladesh

2016 ◽  
Vol 13 (1) ◽  
pp. 59-64 ◽  
Author(s):  
Jannatul Ferdous ◽  
Aleya Begum ◽  
Nusrat Jahan Sharmin ◽  
M. Habibul Ahsan
Keyword(s):  
Bottled Water ◽  
Beta Activity ◽  
Dhaka City ◽  
Gross Beta ◽  
Gross Alpha ◽  
Gross Beta Activity

Determination of Gross Alpha and Gross Beta Activity Concentration in Bahe River Water Samples Within Xi'an Chanba Area

2020 ◽  
Author(s):  
Yao Qingxu ◽  
Huo Yonggang ◽  
Xu Peng ◽  
Yu Fengmei ◽  
Lv Ning
Keyword(s):  
Water Quality ◽  
Water Samples ◽  
Beta Activity ◽  
Gross Beta ◽  
Gross Alpha ◽  
Radioactivity Level ◽  
Gross Beta Activity ◽  
Source Method ◽  
Thick Source

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.

Measurement of gross alpha and gross beta activity concentrations in human tooth

2010 ◽  
Vol 101 (3) ◽  
pp. 226-229 ◽  
Author(s):  
Ömer Söğüt ◽  
Mehmet Fatih Aydın ◽  
Erdal Küçükönder ◽  
Özlem Selçuk Zorer ◽  
Mahmut Doğru
Keyword(s):  
Human Tooth ◽  
Beta Activity ◽  
Gross Beta ◽  
Gross Alpha ◽  
Gross Beta Activity ◽  
Activity Concentrations
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