-
[show abstract]
[hide abstract]
ABSTRACT: Indoor radon studies have been carried out in the environs of some areas of Sirsa district, Haryana, India using LR-115 type
II plastic track detectors. LR-115 Type II films in the bare mode were exposed for one year on three month basis to cover
all seasons for the measurement of indoor radon levels. The work has been undertaken for health risk assessment. The average
radon concentration in dwellings in most of the villages falls in the action level (200–600 Bq m−3) recommended by International Commission on Radiological Protection. The radon values in some of the dwellings exceed the
action level and may be unsafe from the health hazard point of view. The variation due to the ventilation conditions and contribution
of building materials to the indoor radon in dwellings are also discussed. The positive values of winter-summer ratio of radon
concentration also confirm that level of radon concentration is high in winters as compared to the summers.
Indian Journal of Physics and Proceedings of the Indian Association for the Cultivation of Science -New Series- 04/2012; 83(8):1191-1196. · 0.38 Impact Factor
-
[show abstract]
[hide abstract]
ABSTRACT: The activity concentration and the gamma-absorbed dose rates of the terrestrial naturally occurring radionuclides (232Th, 226Ra and 40K) were determined in soil samples collected from ten different locations of Sirsa district of Haryana, using HPGe detector
based on high-resolution gamma spectrometry system. The range of activity concentrations of 226Ra, 232Th and 40K in the soil samples from the studied areas varies from 19.18Bqkg−1 (Moriwala) to 40.31Bqkg−1 (Rori), 59.43Bqkg−1 (Pipli) to 89.54Bqkg−1 (Fatehpur) and 223.22Bqkg−1 (Moriwala) to 313.32Bqkg−1 (SamatKhera) with overall mean values of 27.94, 72.75 and 286.73Bqkg−1 respectively. The absorbed dose rate calculated from activity concentration of 226Ra, 232Th and 40K ranges between 8.84 and 18.58, 37.02 and 55.78, and 9.24 and 12.97nGyh−1, respectively. The total absorbed dose in the study area ranges from 60.40 to 82.15nGyh−1 with an average value of 70.12nGyh−1. The calculated values of external hazard index (H
ex) for the soil samples of the study area range from 0.36 to 0.49 with an average value of 0.42.
Environmental earth sciences 04/2012; 59(5):1159-1164. · 1.06 Impact Factor
-
[show abstract]
[hide abstract]
ABSTRACT: Indoor radon studies have been carried out in the environs of some areas of Sirsa district, Haryana, India using LR-115 type II plastic track detectors. LR-115 Type II films in the bare mode were exposed for one year on quarterly basis to cover all the four seasons for the measurement of indoor radon levels. The work has been undertaken for the health risk assessments. The annual average indoor radon value in the study area varies from 64 Bq m(-3) to 120 Bq m(-3) with an average value of 91 Bq m(-3). These values are 2 to 3 times more than the world average of 40 Bq m3. The average radon concentration in dwellings in most of the villages falls in the action level (200-600 Bq m3) recommended by International Commission on Radiological Protection. The radon values in some of the dwellings exceed the action level and may be unsafe from the health hazard point of view. The variation due to the ventilation conditions and contribution of building materials to the indoor radon in dwellings are also discussed.
Journal of environmental science & engineering. 04/2009; 51(2):103-6.
