scholarly journals Assessment of the Annual Effective dose of Bottled Mineral Waters Using Closed Can Technique

2018 ◽  
Vol 14 (3) ◽  
pp. 5696-5707
Author(s):  
Hesham A. Yousef
Keyword(s):  
Drinking Water ◽  
Effective Dose ◽  
Water Samples ◽  
Radon Concentration ◽  
Mineral Water ◽  
Annual Effective Dose ◽  
Mineral Waters ◽  
Local Market ◽  
Radiological Risk ◽  
Can Technique

Water is the most important substance for life. Mineral waters are widely used as drinking water, and so that, it is important to determine the radon levels, and its risk in drinking water for public health and radiation protection. Radon concentration has been measured in the bottled natural mineral water samples commercially available in the Egyptian local market, using closed can technique. Radon concentration in water samples ranged from 0.93 - 6.89 Bql-1 and total annual effective dose ranged from 3.49 - 25.93 µSvy-1. The results indicate that radon concentrations in water samples lower than the recommended limit 11.1BqL-1 by EPA, and the annual effective dose of the samples are lower than the permissible international limit by EPA and WHO. The obtained results indicate that there is no significant public radiological risk related to radon ingested with drinking water in the present study.  

Radon concentration in drinking water in villages nearby Rafsanjan fault and evaluation the annual effective dose

2014 ◽  
Vol 302 (3) ◽  
pp. 1167-1176 ◽  
Author(s):  
Mohammad Malakootian ◽  
Zahra Khashi ◽  
Farnaz Iranmanesh ◽  
Mojtaba Rahimi
Keyword(s):  
Drinking Water ◽  
Effective Dose ◽  
Radon Concentration ◽  
Annual Effective Dose

Evaluation of Gross Alpha and Beta Activity Concentrations and Annual Effective Dose in Drinking Waters of Misan Province-Iraq Using Low Background Gas Flow Proportional Counter (LB- 4110)

2021 ◽  
Vol 19 (11) ◽  
pp. 22-31
Author(s):  
Sawsan Sh. Fleifil ◽  
Zahraa A. Ismail AL-Sudani
Keyword(s):  
Drinking Water ◽  
Effective Dose ◽  
Water Samples ◽  
Proportional Counter ◽  
Gas Flow ◽  
Annual Effective Dose ◽  
Tap Water ◽  
Beta Activity ◽  
Low Background ◽  
Background Gas

In this study, assessment of levels natural radioactivity in drinking water samples of Misan Province of Iraq was carried out. A total of 33 (Tigris river, station and Tap) water samples collected from eleven places in Misan Province of Iraq. The beta and alpha gross radioactivity of the samples water was measured and an average annual effective dose derived of drinking-water ingestion was estimation utilizing new model a LB-4110 low background gas flow proportional counter. The data indicated that the Beta and Alpha gross activities and annual effective dose in samples did not exceed WHO recommended levels (0.5 Bq/L of Alpha gross, 1.0 Bq/L of Beta gross and 0.1 mSv/y for annual effective dose).

scholarly journals Determination of radon concentration in drinking water of Taft Township and evaluation of the annual effective dose

2016 ◽  
Vol 14 (1) ◽  
pp. 39-46
Author(s):  
M. Malakootian ◽  
H. Salmani Marvast ◽  
A. Negharestani ◽  
F. Iranmanesh ◽  
◽  
...  
Keyword(s):  
Drinking Water ◽  
Effective Dose ◽  
Radon Concentration ◽  
Annual Effective Dose

Annual effective dose from radon-222 concentration levels in underground water in bungoma south sub - county, Kenya

2021 ◽  
Vol 5 (1) ◽  
pp. 23-26
Author(s):  
Conrad Khisa Wanyama ◽  
George Wangila Butiki ◽  
John Wanjala Makokha ◽  
Fred Wekesa Masinde
Keyword(s):  
Effective Dose ◽  
Water Samples ◽  
Radon Concentration ◽  
Annual Effective Dose ◽  
Underground Water ◽  
Inhalation Dose ◽  
Average Value ◽  
Dug Wells ◽  
Concentration Levels ◽  
Recommended Action

This research measured the concentration levels of radon in groundwater and determined the ingestion and inhalation dose. The study used RAD7 detector with RAD7-H2O accessory from Durridge Company to determine the radon levels. Thirty water samples in granitic dominated regions were collected from various areas of Bungoma County: ten from boreholes (BH), ten from hand dug wells (WL) and ten from springs (SP). The water samples were collected in 250 ml bottles which were tightly covered with lid to avoid radon leakage. The highest value was 303±4.00 KBq/m3 recorded in Kanduyi well and the lowest was 126±11.4kBq/m3 from where most of the samples recorded a high radon concentration with a mean of 269±5.25 KBq/m3 in wells, 213±7.96 KBq/m3 in boreholes and 290±7.70 KBq/m3 in springs. The average ingestion dose was found to be 1.5±0.07mSv/yr, 1.9±0.09 mSv/yr and 2.1±0.1 mSv/yr. The average annual effective dose rate for the samples collected were 2±0.1 mSv/yr for boreholes, 2.6±0.13 mSv/yr for wells and 2.7±0.14 mSv/yr for springs. The samples reported an average value of AED higher than the world average of 1.15 mSv/yr but below the exception limit of recommended action level of 10 mSv/yr hence the radon concentration levels in underground water in the study area has minimal health implications to the population.

scholarly journals Assessment of Effective Dose from Radioactive Isotopes Contained in Mineral Waters Received by Patients During Hydrotherapy Treatments

Water ◽  
2019 ◽  
Vol 12 (1) ◽  
pp. 97
Author(s):  
Maria Karpińska ◽  
Jacek Kapała ◽  
Agnieszka Raciborska ◽  
Stanisław Mnich
Keyword(s):  
Effective Dose ◽  
Water Samples ◽  
Mineral Water ◽  
Tap Water ◽  
Biological Effects ◽  
Mineral Waters ◽  
Radioactive Isotopes ◽  
Protection Method ◽  
Natural Treatment ◽  
Effective Doses

Hydrotherapy is a natural treatment and health protection method. Treatments using natural mineral water are gaining popularity as an alternative to pharmacotherapy or as additional support to pharmacotherapy in many types of diseases. The aim of the study was to determine the effective dose obtained as a result of baths and inhalations using popular mineral water samples. A total of 18 commercially available water samples used in hydrotherapy were tested for their radioactive isotope content. The following isotopes were found: 40K, 208Tl, 212Bi, 212Pb, 214Bi, 214Pb, 226Ra, 228Ac, 234Th. Effective doses received by patients during inhalation and bathing using the tested mineral water samples were determined. The collected sample activity was measured using gamma spectrometry. The effective doses received by patients from a series of inhalation treatments ranged from 170.4 to 22.9 µSv. Infants receive the highest effective dose as a result of inhalation of mineral water. The doses received by patients as a result of bathing in the studied mineral water samples were in the range of from 0.04 to 1.1 µSv and were comparable with doses from ordinary baths in tap water (0.06 µSv). The determined doses are very low; thus, they are unlikely to cause noticeable biological effects.

scholarly journals Determining the concentrations of radon and the rate of annual effective dose in some types of drinking water available in the Iraqi markets

2019 ◽  
Vol 11 (20) ◽  
pp. 75-80
Author(s):  
Ali A. Al-Hamidawi
Keyword(s):  
Drinking Water ◽  
Effective Dose ◽  
Water Samples ◽  
Closed Loop ◽  
Annual Effective Dose ◽  
Drinking Water Samples ◽  
Radon Concentrations

           In this research, radon concentrations in some types of healthy drinking water samples available in Iraq's market were measured using a technique called Durridge RAD-7-H2O with closed loop. Then the rate of annual effective dose in human taken this water is determined.           It was found that, radon concentrations in studied samples ranged between 1.2 Bq.m-3 to 142 Bq.m-3. The results of the radon concentrations and the rate of annual effective dose for drinking water samples were significantly lower than the USEPA and WHO recommended limits that equal 500 Bq/m3 and 1 mSv/y respectively.

scholarly journals Measurement of waterborne radon in the drinking water of the Dera Ismail Khan city using active and passive techniques

2015 ◽  
Vol 30 (2) ◽  
pp. 139-144 ◽  
Author(s):  
Tabassum Nasir ◽  
M Matiullah ◽  
Muhammad Rafique ◽  
Rubeena Tahseen
Keyword(s):  
Drinking Water ◽  
Effective Dose ◽  
Water Samples ◽  
Annual Effective Dose ◽  
Indoor Radon ◽  
Indoor Radon Concentration ◽  
Point Of Interest ◽  
Safe Limits ◽  
The City ◽  
Passive Techniques

Groundwater is considered to be the second largest contributor to the indoor radon concentration after soil. Therefore, measurement of waterborne radon has remained a point of interest for many researchers. The main objective of this study is to study waterborne radon activity in the city of Dera Ismail Khan. In this context, water samples were collected from different locations of the city and waterborne radon was measured using a pylon vacuum water degassing system and CR-39 based radon detectors. The pylon system measured waterborne radon activities in samples of hand pumps and motor driven pumps varying from 0.015 to 0.066 Bq/L and 0.021 to 0.145 Bq/L with average values of 0.041 ? 0.015 Bq/L and 0.076 ? 0.024 Bq/L, respectively. Whereas CR-39 based measured values ranged from 0.042 to 0.125 Bq/L and 0.075 to 0.158 Bq/L with average values of 0.081 ? 0.021 Bq/L and 0.120 ? 0.020 Bq/L, respectively. The estimated average annual effective dose due to ingestion of radon from drinking water using pylon and CR-39 based radon detectors for hand and motor pump samples was found to be 1.055?10-4 mSv and 1.947?10-4 mSv, and 2.067?10-4 mSv and 3.058?10-4 mSv, respectively. The waterborne radon concentrations and as a result the annual effective dose expected to be received from it are within the recommended safe limits.

scholarly journals RADON CONCENTRATION IN GROUND WATER OF DHAKA CITY, BANGLADESH

2020 ◽  
Vol 5 (11) ◽  
pp. 61-70
Author(s):  
Shikha Pervin ◽  
Selina Yeasmin ◽  
Jannatul Ferdous ◽  
Afia Begum
Keyword(s):  
Ground Water ◽  
Effective Dose ◽  
Water Samples ◽  
Environmental Protection Agency ◽  
Radon Concentration ◽  
Activity Concentration ◽  
Annual Effective Dose ◽  
World Health ◽  
Dhaka City ◽  
Health Organization

Water is the most important source of life and ground water may contain varying levels of radioactivity. So it is therefore important to measure radon concentration in ground water for public health and radiation protection. In this study, radon concentration was measured in ground water samples collected from water pumps of different locations at Dhaka city, Bangladesh. Twenty ground water samples were collected in July 2017to April 2018 for radon level measurement. Radon detector RAD7 (manufactured by Durridge Company, USA) with RAD H2O technique was used for the measurement. The highest radon concentration was found 13.00±0.70 Bq/L for the pump of sample ID GW1 and the lowest radon concentration 2.13±0.593 Bq/L for the pump of sample ID GW10.The activity concentration of radon in maximum water samples in Dhaka city was lower than the value 11.1 Bq/L recommended by United States Environmental Protection Agency (USEPA). The radon concentration was lowered from the activity concentration before storage. The highest value of annual effective dose for radon in ground water was found 0.04745 mSv/y According to recommendation of World Health Organization, the annual effective dose level for radon in drinking water is 0.1 mSv/y. These results indicate that there is no probability of health hazards for public due to presences of radon in ground water and it is safe for consumption.

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