Radiation dose due to radon and heavy metal analysis in drinking water samples of jammu district, jammu & kashmir, india
In the present investigation, radon concentration and heavy metal analysis were carried out in drinking water samples in Jammu district, Jammu & Kashmir, India. The radon concentration was measured by using RAD-7, portable alpha particle detector. The values of radon concentration in drinking water samples were also compared within the safe limit recommended by different health agencies. The total annual effective dose ranged from 53.04 to 197.29 µSv y–1. The annual effective dose from few locations from the studied area was found to be greater than the safe limit (100 µSv y–1) suggested by Worl...
Source: Radiation Protection Dosimetry - October 27, 2016 Category: Radiology Authors: Kumar, A., Kaur, M., Sharma, S., Mehra, R., Sharma, D. K., Mishra, R. Tags: Paper Source Type: research
A comparative study of diurnal variation of radon and thoron concentrations in indoor environment
The diurnal measurements of radon and thoron concentrations were performed in the indoor environment of Nuclear Research Laboratory, Badshahi Thaul, Tehri Garhwal, Uttarakhand, India by using AlphaGUARD, Portable Radon Monitor (SMART RnDuo) and RAD7. Using AlphaGUARD, the radon concentration was found to vary from 8 to 94 Bq m–3 with an average of 41.5±22.2 Bq m–3. Using Portable Radon Monitor (SMART RnDuo), the concentration was found to vary from 2 to 101 Bq m–3 with an average of 41.7±23.6 Bq m–3, and with RAD7, the concentration was found to vary from 3 to 99 Bq m–3 with an a...
Source: Radiation Protection Dosimetry - October 27, 2016 Category: Radiology Authors: Pant, P., Kandari, T., Prasad, M., Ramola, R. C. Tags: Paper Source Type: research
ASSESSMENT OF INHALATION DOSE FROM THE INDOOR 222Rn AND 220Rn USING RAD7 AND PINHOLE CUP DOSEMETERS
Radon is the most important source of natural radiation and is responsible for approximately half of the received dose from all sources. Most of this dose is from inhalation of the radon progeny, especially in closed atmospheres. Concentration of radon (222Rn) and thoron (220Rn) in the different villages of Jalandhar and Kapurthala district of Punjab has been calculated by pinhole cup dosemeters and RAD7. On an average, it has been observed from the study that the values of all the parameters calculated are higher in case of active monitoring than the passive monitoring. The calculated equilibrium equivalent 222Rn concentr...
Source: Radiation Protection Dosimetry - October 27, 2016 Category: Radiology Authors: Mehra, R., Jakhu, R., Bangotra, P., Kaur, K., Mittal, H. M. Tags: Paper Source Type: research
Study of radiation exposure due to radon, thoron and their progeny in the indoor environment of rajpur region of uttarakhand himalaya
In the present study, the measurements of indoor radon, thoron and their progeny concentrations have been carried out in the Rajpur region of Uttarakhand, Himalaya, India by using LR-115 solid-state nuclear track detector-based time-integrated techniques. The gas concentrations have been measured by single-entry pin-hole dosemeter technique, while for the progeny concentrations, deposition-based Direct Thoron and Radon Progeny Sensor technique has been used. The radiation doses due to the inhalation of radon, thoron and progeny have also been determined by using obtained concentrations of radon, thoron and their progeny in...
Source: Radiation Protection Dosimetry - October 27, 2016 Category: Radiology Authors: Kandari, T., Aswal, S., Prasad, M., Pant, P., Bourai, A. A., Ramola, R. C. Tags: Paper Source Type: research
Study on radon concentration at the work places of mysuru, bengaluru and kolar districts of karnataka state, south india
Concentrations of radon, thoron and their progeny inside the working place depend on the activity of radionuclides in the soil, building materials, atmospheric conditions, construction of the building, type of work and ventilation condition. Radon is a radioactive noble gas, and it is emanated from 226Ra present in earth crest and building material. Based on the type of work, construction of the building and ventilation condition, concentrations of radon, thoron and their progeny have been measured in 60 workplaces at 10 locations of Mysuru, Bengaluru and Kolar districts of Karnataka state using Solid-State Nuclear Track D...
Source: Radiation Protection Dosimetry - October 27, 2016 Category: Radiology Authors: Ningappa, C., Hamsa, K. S., Reddy, K. U., Niranjan, R. S., Rangaswamy, D. R., Sannappa, J. Tags: Paper Source Type: research
Study of radon, thoron exhalation and natural radioactivity in coal and fly ash samples of kota super thermal power plant, rajasthan, india
Electricity generation in India is largely dependent on coal-based thermal power plants, and increasing demand of energy raised the coal consumption in the power plants. In recent years, study of natural radioactivity content and radon/thoron exhalation from combustion of coal and its by-products has given considerable attention as they have been recognised as one of the important technically enhanced naturally occurring radioactive materials. In the present study, radon, thoron exhalation rate and the radioactivity concentration of radionuclides in coal and fly ash samples collected from Kota Super Thermal Power Plant, Ra...
Source: Radiation Protection Dosimetry - October 27, 2016 Category: Radiology Authors: Singh, L. M., Kumar, M., Sahoo, B. K., Sapra, B. K., Kumar, R. Tags: Paper Source Type: research
Measurement of radon concentration in dwellings in the region of highest lung cancer incidence in india
Indoor radon/thoron concentration has been measured in Aizawl district, Mizoram, India, which has the highest lung cancer incidence rates among males and females in India. Simultaneously, radon flux emanated from the surrounding soil of the dwellings was observed in selected places. The annual average value of concentration of radon(thoron) of Aizawl district is 48.8(22.65) Bq m–3 with a geometric standard deviation of 1.25(1.58). Measured radon flux from the soil has an average value of 22.6 mBq m–2 s–1. These results were found to be much below the harmful effect or action level as indicated by the Worl...
Source: Radiation Protection Dosimetry - October 27, 2016 Category: Radiology Authors: Zoliana, B., Rohmingliana, P. C., Sahoo, B. K., Mishra, R., Mayya, Y. S. Tags: Paper Source Type: research
Study of radiation exposure due to radon, thoron and progeny in the indoor environment of yamuna and tons valleys of garhwal himalaya
Long-term measurements of indoor radon, thoron and their progeny concentrations have been carried out in dwellings of Yamuna and Tons Valleys of Uttarkashi, Garhwal Himalaya to investigate the health risk associated with inhalation of radon, thoron and progeny. The experimentally determined values of radon, thoron and progeny concentrations were used to estimate the annual inhalation doses and annual effective doses. The annual inhalation dose has been found to vary from 0.8 to 3.9 mSv y–1 with an average of 1.8 mSv y–1. The annual effective dose from the exposure to radon and its progeny in the study area has ...
Source: Radiation Protection Dosimetry - October 27, 2016 Category: Radiology Authors: Prasad, M., Rawat, M., Dangwal, A., Prasad, G., Mishra, R., Ramola, R. C. Tags: Paper Source Type: research
Innovative easy-to-use passive technique for 222rn and 220rn decay product detection
The decay products of radon and thoron are essentially the radioisotopes of polonium, bismuth and lead, and are solid particulates, which deposit in different parts of the respiratory tract upon inhalation, subsequently emitting high-energy alpha particles upon their radioactive decay. Development of passive deposition-based direct progeny sensors known as direct radon and thoron progeny sensors have provided an easy-to-use technique for time-integrated measurements of the decay products only. These dosemeters are apt for large-scale population dosimetry to assign inhalation doses to the public. The paper gives an insight ...
Source: Radiation Protection Dosimetry - October 27, 2016 Category: Radiology Authors: Mishra, R., Rout, R., Prajith, R., Jalalluddin, S., Sapra, B. K., Mayya, Y. S. Tags: Paper Source Type: research
Inadequacy of thoron dose calculations from thoron progeny measurement alone
To determine the dose received by thoron (220Rn) domestically, conventional methods measure the activity concentration of thoron progeny only (namely the 212Pb atoms) and calculate the dose by using a set of conversion factors. This may be due to the measurement of progeny being simpler since it is longer lived and will be evenly spread throughout the room, whereas the thoron gas, with its short half-life, will exist only near the source and hence will not be of major concern for the majority of the room. However, concrete walls are a source of thoron, and spending prolonged amounts of time near them may lead to greatly in...
Source: Radiation Protection Dosimetry - October 27, 2016 Category: Radiology Authors: Lane-Smith, D., Wong, F. K. Tags: Paper Source Type: research
Natural radioactivity level and elemental composition of soil samples from a high background radiation area on eastern coast of india (odisha)
A comprehensive study was carried out to determine the radioactivity concentration of soil samples from different sites of a high background radiation area in the eastern coast of India, Odisha state. The dose rate measured in situ varied from 0.25 to 1.2 µSv h–1. The gamma spectrometry measurements indicated Th series elements as the main contributors to the enhanced level of radiation and allowed the authors to find the mean level of the activity concentration (±SD) for 226Ra, 228Th and 40K as 130±97, 1110±890 and 360±140 Bq kg–1, respectively. Human exposure from radionuclid...
Source: Radiation Protection Dosimetry - October 27, 2016 Category: Radiology Authors: Sahoo, S. K., Kierepko, R., Sorimachi, A., Omori, Y., Ishikawa, T., Tokonami, S., Prasad, G., Gusain, G. S., Ramola, R. C. Tags: Paper Source Type: research
First National Conference on Radiation Awareness and Detection in Natural Environment, Tehri Garhwal, India, June 15-17, 2015
(Source: Radiation Protection Dosimetry)
Source: Radiation Protection Dosimetry - October 27, 2016 Category: Radiology Authors: Ramola, R. C., Mishra, R. Tags: Editorial Source Type: research
Author Index
(Source: Radiation Protection Dosimetry)
Source: Radiation Protection Dosimetry - September 23, 2016 Category: Radiology Tags: Index Source Type: research
List of Participants
(Source: Radiation Protection Dosimetry)
Source: Radiation Protection Dosimetry - September 23, 2016 Category: Radiology Tags: List of Participants Source Type: research
Protecting Public Health in Nuclear Emergencies--the Need to Broaden the Process
It is necessary for the radiation protection system to broaden beyond radioactive dose, the view on impact of nuclear accidents, taking in consideration the psychological, social and economic determinants impacting the vulnerability of the exposed population, as well as the impacts of emergency countermeasures. It is strongly recommended to pursue strategies, approaches and services that will address these aspects within the general health protection system and will be applied before, during and after an emergency. The paper raises awareness and proposes a three-step development process for an integrated framework based on...
Source: Radiation Protection Dosimetry - September 23, 2016 Category: Radiology Authors: Carr, Z., Weiss, W., Roebbel, N., Abrahams, J. Tags: Paper Source Type: research
