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Real-time Environmental Gamma Dose Monitoring around Dhaka University Campus and Estimation of Excess Lifetime Cancer Risk on Public Health |
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PP: 9-16 |
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doi:10.18576/jrna/080102
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Author(s) |
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N. Sultana,
M. M. M Siraz,
S. Pervin,
M. F. Kabir,
N. Hassan,
S. Banik,
M. S. Rahman,
S. Yeasmin,
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Abstract |
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| This study aims to determine the environmental and manufactured radiation dose and evaluation ELCR, which depends on the annual effective dose (total absorbed radiation dose of the whole body during a year). The total dose rate has been monitored around the Dhaka university campus. This study used a digital portable radiation monitoring device for radiation dose measurements and a personal navigator for location identification. During this monitoring, placed a survey meter 1 meter above the ground. The measured dose rate differs from 0.067±0.015 ~ 0.19±0.01 µSv/h with a mean value of 0.138±0.009 µSv/h. The outdoor annual effective dose (AED) for the public varied from 0.117±0.027 ~ 0.333±0.017 mSv/y with a mean of 0.242± 0.016 mSv/y. From this study, the value of AED is less than 1 mSv/y which is the maximum acceptable public exposure limit (ICRP,2007). ELCR on public health was also calculated from these data ranging from 0.48×10-3 ~ 1.37×10-3 with a mean value of 0.99×10-3 |
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