Indoor gamma dose measurement along the East coast of Tamilnadu, India using TLD

Selvasekarapandian, S.; Lakshmi, K.S.; Brahmanandhan, G. M.; Meenakshisundaram, V.

doi:10.1016/j.ics.2004.10.026

Cited by 13 publications

(7 citation statements)

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“…Naturally occurring primordial radionuclides mainly include 238 U, 235 U, and 232 Th series and 40 K [5]. Unlike the pollutants with anthropogenic sources (e.g.…”

Section: Introductionmentioning

confidence: 99%

Investigation of natural effective gamma dose rates case study: Ardebil Province in Iran

Hazrati

Baghi

Sadeghi

et al. 2012

J Environ Health Sci Engineer

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Gamma rays pose enough energy to induce chemical changes that may be biologically important for the normal functioning of body cells. The external exposure of human beings to natural environmental gamma radiation normally exceeds that from all man-made sources combined. In this research natural background gamma dose rates and corresponding annual effective doses were determined for selected cities of Ardebil province. Outdoor gamma dose rates were measured using an Ion Chamber Survey Meter in 105 locations in selected districts. Average absorbed doses for Ardebil, Sar-Ein, Germy, Neer, Shourabil Recreational Lake, and Kosar were determined as 265, 219, 344, 233, 352, and 358 nSv/h, respectively. Although dose rates recorded for Germi and Kosar are comparable with some areas with high natural radiation background, however, the dose rates in other districts are well below the levels reported for such locations. Average annual effective dose due to indoor and outdoor gamma radiation for Ardebil province was estimated as 1.73 (1.35–2.39) mSv, which is on average 2 times higher than the world population weighted average.

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“…Naturally occurring primordial radionuclides mainly include 238 U, 235 U, and 232 Th series and 40 K [5]. Unlike the pollutants with anthropogenic sources (e.g.…”

Section: Introductionmentioning

confidence: 99%

Investigation of natural effective gamma dose rates case study: Ardebil Province in Iran

Hazrati

Baghi

Sadeghi

et al. 2012

J Environ Health Sci Engineer

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show abstract

“…Natural radionuclides of terrestrial origin have very long half-lives or driven from very long-lived parent radionuclides which have been created stellar processes before the earth formation. Excluding exposure from direct cosmic rays and cosmogenic radionuclide from extraterrestrial sources, natural exposures arise mainly from the primordial radionuclides such as 238 U & 232 Th series and 40 K which are spread widely and are present in all most geological materials in the earth's environment [4,5]. Unlike the pollutants with anthropogenic sources that are introduced into the environment through human activity [6], terrestrial origin radionuclides are naturally present at trace levels in all environmental compartments.…”

Section: Introductionmentioning

confidence: 99%

In-Situ Environmental Gamma Radiation Monitoring at Ramna Thana, Dhaka, Bangladesh

Mian¹,

Rahman

Islam³

et al. 2019

J. Sci. Res.

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Environmental gamma radiation dose rates were measured using a digital portable Gamma-Scout detector from April-May 2018. For this, total 22 monitoring points (MP) were selected in the outdoor environment in the area of Ramna Thana under Dhaka city. The MPs were marked-out using Global Positioning System (GPS) navigation. The GPS reading of the sampling locations were varied from E: 90o23.568' to E: 90o24.895' and from N: 23o44.031' to N: 23o45.018'. The measured dose rates due to natural radionuclides were ranged from 0.115 ± 0.042 µSv.hr-1 to 0.186 ± 0.051 µSv.h-1 with an average of 0.145 ± 0.044 µSv.h-1. The annual effective dose to the population from outdoor environmental gamma radiation was varied from 0.201 ± 0.073 mSv to 0.326 ± 0.090 mSv with an average of 0.255 ± 0.073 mSv. This kind of study is required to detect the presence of natural radionuclides and artificial radionuclides (if any) releasing from nuclear and radiological facilities in the country or from neighboring countries for normal operations or in case of accident/incident. From this study, it can be concluded that there is no radiation burden to the environment due to man-made sources.

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“…Both laboratory and in-situ gamma spectroscopy are often used for monitoring and assessment of radioactivity and radiation dose rates in the environment due to both natural and anthropogenic sources [15][16][17][18][19][20] . In-situ techniques for measuring the activity concentration resulting from the gamma radiation and characterizing its sources with gamma ray spectrometer have been used successfully in outdoor and indoor environment [12,[21][22][23] . The presence of naturally occurring radionuclides in the environment may result in an external and internal dose received by a population exposed to them directly and through the ingestion and inhalation pathways.…”

Section: Introductionmentioning

confidence: 99%

Real-Time Environmental Gamma Radiation Dose Rate Measurement around Major Nuclear and Radiological Facilities in Bangladesh

Moontaha

Rahman

Islam

et al. 2018

int.jour.sci.res.mana

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Indoor gamma dose measurement along the East coast of Tamilnadu, India using TLD

Cited by 13 publications

References 0 publications

Investigation of natural effective gamma dose rates case study: Ardebil Province in Iran

Investigation of natural effective gamma dose rates case study: Ardebil Province in Iran

In-Situ Environmental Gamma Radiation Monitoring at Ramna Thana, Dhaka, Bangladesh

Real-Time Environmental Gamma Radiation Dose Rate Measurement around Major Nuclear and Radiological Facilities in Bangladesh

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