Assessing radioactivity and hazards: analysis of soil, water, and coal samples near a coal-fired thermal power plant and their implications for human health and the environment

ABSTRACT

The combustion of coal poses significant risks, increasing the radioactive burden on the atmosphere and affecting the health of individuals near coal mines and coal-fired thermal power plants (CFTPPs). A detailed study was conducted within a 3 km radius surrounding the site of Barapukuria Coal Mine Company Limited (BCMCL), Bangladesh’s premier operational coal-fired thermal power plant, during which 50 soil samples, 50 water samples, and 21 coal samples were collected from a variety of locations inside and beyond the BCMCL boundaries, and these samples were then analysed for radioactivity using a high-purity germanium detector. The range of activity concentrations of ²²⁶Ra, ²³²Th, and ⁴⁰K in the studied soil, water and coal samples were 24–47, 30–76, and 340–570 Bqkg⁻¹; 1.6–2.9, 1.1–3.8, and 53–92 Bqkg⁻¹; 19–57, 20–97, and 78–170 Bqkg⁻¹ respectively. The majority of hazard indices, including absorbed dose rate, gamma index, effective dose, and excess lifetime cancer risk, associated with soil samples were higher than the world average. This indicates that long-term exposure to terrestrial ionising radiation is unsafe for coal miners and the local community. The quantitative measurements of this study have important implications for planning larger and more modern coal-fired power plants. Additionally, the study’s results underscore the need for municipal officials to impose restrictions and closely monitor the release of fly ash in the vicinity of coal-fired power plants. Furthermore, there is a crucial need to monitor the health of workers and locals living near the power plant to safeguard against potential health risks.

KEYWORDS:

• Coal-fired power plant
• soil
• natural radioactivity
• HPGe
• hazard parameters

Disclosure statement

No potential conflict of interest was reported by the author(s).

Author contributions

All authors contributed to the study’s conception and design. [Selina Yeasmin] collected the samples that were studied in the research. [M.M. Mahfuz Siraz] performed sample measurement and data analysis. [Selina Yeasmin] and [M.M. Mahfuz Siraz] prepared the first draft of the manuscript. The research was carried out under the keen supervision of [M.S. Rahman] and [S.K. Das]. The final manuscript has been read and approved by all authors.

Consent to participate

No humans or experimental animals were subjects in this research.

Consent to publish

All authors have consented to publish the results of the research.

Data availability statement

All data and materials from which the study results have been derived are available and can be provided upon request.

Ethical approval

We declare that the manuscript complies with all the ethical standards that need to be met and follows all the rules of good scientific practice.

Additional information

Funding

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