Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1051/radiopro/2008051 |
Occurrences of NORMS and Cs-137 in soils of the Singhbhum region of Eastern India and associated Radiation Hazard | |
Chakrabarty, A.; Tripathi, R. M.; Puranik, V. D. | |
通讯作者 | Chakrabarty, A. |
来源期刊 | RADIOPROTECTION
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ISSN | 0033-8451 |
EISSN | 1769-700X |
出版年 | 2009 |
卷号 | 44期号:1页码:55-68 |
英文摘要 | Naturally occurring radioactive materials (NORMS) and fallout Cs-137 were estimated in surface soils front the highly mineralized Singhbhum region of Eastern India. The activity concentrations varied from 50.67-109.14 Bq/kg (U-238), 48.12-142.55 Bq/kg (Ra-226), 28.73-89.78 Bq/kg (Th-232), 494.84- 1121.36 Bq/kg (K-40) and 1.8-7.48 Bq/kg (Cs-137). Correlation between radionuclides was studied. Th-232/U-238 concentration (Clark value) was also calculated. Radiation hazard for the samples was assessed by radium equivalent activity (Ra-eq), external hazard index (H-ex), internal hazard index (H-in) and absorbed gamma dose rate (D). Ra-eq values ranged front 216-263 Bq/kg, H-ex values front 0.58-0.71 Bq/kg, H-in values from 0.73-1 Bq/kg and D values front 100-121 nGy/h. Calculated and observed dose rates in air were compared with the help of parametric and non-parametric tests. The tests showed significant difference between the calculated and observed dose rates. |
英文关键词 | natural radioactivity activity concentration radiation hazard dose rate |
类型 | Article |
语种 | 英语 |
国家 | India |
收录类别 | SCI-E |
WOS记录号 | WOS:000265693700005 |
WOS关键词 | NATURAL RADIOACTIVITY ; GAMMA-RADIATION ; SAMPLES ; RADIONUCLIDES ; EXPOSURE ; POPULATION ; SEDIMENT ; ORIGIN ; DESERT ; EGYPT |
WOS类目 | Environmental Sciences ; Public, Environmental & Occupational Health ; Nuclear Science & Technology ; Radiology, Nuclear Medicine & Medical Imaging |
WOS研究方向 | Environmental Sciences & Ecology ; Public, Environmental & Occupational Health ; Nuclear Science & Technology ; Radiology, Nuclear Medicine & Medical Imaging |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/162393 |
作者单位 | Bhabha Atom Res Ctr, Environm Assessment Div, Bombay 400085, Maharashtra, India |
推荐引用方式 GB/T 7714 | Chakrabarty, A.,Tripathi, R. M.,Puranik, V. D.. Occurrences of NORMS and Cs-137 in soils of the Singhbhum region of Eastern India and associated Radiation Hazard[J],2009,44(1):55-68. |
APA | Chakrabarty, A.,Tripathi, R. M.,&Puranik, V. D..(2009).Occurrences of NORMS and Cs-137 in soils of the Singhbhum region of Eastern India and associated Radiation Hazard.RADIOPROTECTION,44(1),55-68. |
MLA | Chakrabarty, A.,et al."Occurrences of NORMS and Cs-137 in soils of the Singhbhum region of Eastern India and associated Radiation Hazard".RADIOPROTECTION 44.1(2009):55-68. |
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