2026-10-11T18:09:07Z https://api.figshare.com/v2/oai

oai:figshare.com:article/33904154 2026-09-17T17:31:33Z category_4 category_12 category_21 category_272 category_873 category_39 category_734 category_69 portal_5 item_type_3 month_year_09_2026

<p>RStudio code for PCA and HCA.</p> Mahbuba Begum (2631328) Shahadat Hossain (9031787) Md. Bazlar Rashid (11037146) Md. Ahosan Habib (11037149) Rahat Khan (11037152) M.M. Mahfuz Siraz (21728547) Selina Yeasmin (15852639) S.M. Mostafa Al Mamun (25037918) Syed Mohammod Hossain (25037921) Biochemistry Cell Biology Biotechnology Environmental Sciences not elsewhere classified Chemical Sciences not elsewhere classified Ecology Biological Sciences not elsewhere classified Inorganic Chemistry radiological hazards due principal component analysis including fluid dynamics human activities associated hierarchical cluster analysis associated hazard indices appropriate management measures average soil value radiological risk indices determined using high gas extraction operations div >< p core samples taken 40 </ sup 232 </ sup 226 </ sup surface soil samples bangladesh ): assessment activity concentrations ranging fenchuganj gas field surface soil core samples gas field risk assessments k ranging high levels activity concentrations gas production core materials thorough research study emphasizes safe handling ray spectrometry radioactivity levels radioactive concentrations purity germanium processing sectors occupational exposure norms ). natural radioactivity hydrocarbon reserves geological structures geological composition dust control distribution features descriptive statistics comprehensive investigation bangladesh ’ advised thresholds <div><p>It is crucial to carry out thorough research and risk assessments in the oil and gas production and processing sectors because of the possible health risks associated with the redistribution of naturally occurring radioactive materials (NORMs). Radioactivity levels in surface soil and core samples taken from Bangladesh’s Fenchuganj gas field were assessed in this comprehensive investigation. The concentrations of radionuclides were determined using high-purity germanium (HPGe) gamma-ray spectrometry. Surface soil samples have activity concentrations of ²²⁶Ra, ²³²Th, and ⁴⁰K ranging from 16–32 Bq kg^-1, 18–78 Bq kg^-1, and 144–516 Bq kg^-1, respectively, while core samples have activity concentrations ranging from 31–62 Bq kg^-1, 52–93 Bq kg^-1, and 1043–2219 Bq kg^-1, respectively. The core samples’ activity concentrations exceeded the average soil value for the world. These high levels are caused by a variety of factors, including fluid dynamics, geological structures, hydrocarbon reserves, geological composition, and human activities associated with gas production. According to the assessment of radiological risk indices, some of them are higher than the advised thresholds. The distribution features of the radioactive concentrations were investigated using statistical techniques, such as descriptive statistics, principal component analysis, and hierarchical cluster analysis. To safeguard the environment and occupational exposure, appropriate management measures, including regular radiological monitoring, dust control, safe handling of core materials, and worker radiation safety practices, are recommended. Overall, the study emphasizes how crucial it is to understand and monitor the radiological hazards due to gas extraction operations in Bangladesh in order to protect both employees and the local population.</p></div> 2026-09-17T17:31:30Z Dataset Dataset 10.1371/journal.pone.0358600.s001 https://figshare.com/articles/dataset/_p_RStudio_code_for_PCA_and_HCA_p_/33904154 CC BY 4.0