Radiation Physics and Engineering
A peer-reviewed journal published by K. N. Toosi University of Technology

Assessment of ‎r‎adiation hazard on public health at indoor and outdoor environment of Jamalpur 250 bedded general hospital, Jamalpur, Bangladesh‏

Document Type : Research Article

Authors

Sabikun Nahar Alin
Tazul Islam

Department of Physics, Mawlana Bhashani Science and Technology University, Santosh, Tangail, 1902, Bangladesh

https://doi.org/10.22034/rpe.2026.544897.1297
Abstract
In this study, environmental gamma radiation dose rates are measured at Jamalpur 250 Beded General Hospital in Jamalpur district. Part of the Directorate General of Health Services (DGHS), the Jamalpur 250 Beded General Hospital is a public hospital located in Jamalpur, Bangladesh. The background radiation levels in this area must therefore be continuously monitored both indoors and outdoors. The measurement was performed using a portable Gamma-Scout detector. Total 35 measuring points were selected for collection of gamma-radiation in the outdoor and the indoor environment at different places at Jamalpur 250 Beded General Hospital. The measuring points were marked out using Global Positioning System (GPS) navigation. The measured outdoor mean dose rates ranged from 0.1136±0.0039 µSv.h-1 to 0.1700±0.0056 µSv.h-1 and the measured indoor mean dose rates ranged from 0.1150±0.0025 µSv.h-1 to 0.2030±0.0031 µSv.h-1. The annual effective dose rate in the outdoor environment ranges from 0.1991±0.0069 mSv to 0.2978±0.0098 mSv and the indoor environment, the value ranged from 0.8063±0.0176 mSv to 1.4226±0.0218 mSv. The outdoor Excess Lifetime Cancer Risk (ELCR) ranged from 0.0008 to 0.0012 and the indoor ELCR ranged from 0.0033 to 0.0059. However, the lowest ELCR is 0.0008 which is measured at outdoor and the highest ELCR is 0.0059 which is measured at indoor.

Highlights

  • Analytical tools are Gamma scout Geiger counter, GPS Navigator and Microsoft Excel.
  • The annual effective dose rate in the outdoor environment ranges from 0.1991 ± 0.0069 mSv to 0.2978 ± 0.0098 mSv.
  • The annual effective dose rate in the indoor environment ranged from 0.8063 ± 0.0176 mSv to 1.4226 ± 0.0218 mSv.
  • ELCR ranged from 0.0008 to 0.0012 and the indoor ELCR ranged from 0.0033 to 0.0059.
  • This kind of study need to be carried out to confirm the safety of the public in this hospital area.

Keywords

Gamma radiation
Indoor
Outdoor
Dose rate
ELCR

Copyright
RPE is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0).

Conflict of Interest
The authors declare no potential conflict of interest regarding the publication of this work‎.

Funding
‎The authors declare that no funds‎, ‎grants‎, ‎or other financial support were received during the preparation of this manuscript‎.

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Radiation Physics and Engineering
Volume 7, Issue 2
Spring 2026
Pages 23-31

  • Receive Date 04 September 2025
  • Revise Date 30 November 2025
  • Accept Date 25 February 2026

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