Activity concentrations of 224Ra, 226Ra, 228Ra and 40K radionuclides in refinery products and the additional radiation dose originated from oil residues in Turkey
| Autor: | Figen Bulgurlu, Tolga Öncü, Yusuf Ağuş, Çiğdem Yıldız, Aydın Parmaksız, Emine Bulur |
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| Přispěvatelé: | TAEK-SANAEM, AAH-5187-2020 |
| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
Water Pollutants
Radioactive 40K Turkey Potassium Radioisotopes chemistry.chemical_element Industrial Waste Oil residues in Turkey Türkiye'deki petrol kalıntıları Radium Animal science Radiation Protection Rafineri ürünleri Radiation Monitoring Reference Values Radyasyon dozu Occupational Exposure Activity concentration Humans 228Ra Radiology Nuclear Medicine and imaging 226Ra Radiometry 224Ra Radioisotopes Residue (complex analysis) Radionuclide Radyonüklidlerin aktivite konsantrasyonlar Radiation Radiological and Ultrasound Technology Sewage Chemistry Radiation dose Public Health Environmental and Occupational Health Reproducibility of Results General Medicine Refinery Spectrometry Gamma Petroleum Wastewater Gamma Rays Refinery products Calibration Dose rate Radionuclides activity concentrations |
| Popis: | A total of 56 crude oil, refinery product, waste water, sludge and scale samples collected from three refineries were measured by gamma-ray spectrometry. Except for nine samples, all refinery product samples were found to have activity concentrations below the minimum detectable activity (MDA) values. The maximum (224)Ra, (226)Ra, (228)Ra and (40)K activity concentrations in crude oil and refinery product samples were measured as 11.7 ± 4.5, 14.9 ± 3.5, 11.6 ± 4.5, 248.5 ± 18.5 Bq kg(-1), respectively. The maximum (224)Ra, (226)Ra, (228)Ra and (40)K activity concentrations in scale, sludge and water samples were measured as 343.7 ± 11.8, 809.2 ± 29.0, 302.5 ± 21.6, 623.0 ± 80.9 Bq kg(-1), respectively. Radium equivalent activities of the residue samples were calculated up to 1241.8 ± 42.4 Bq kg(-1). The maximum activity concentration index and the alpha index were found to be 4.2 and 4.0, respectively. The annual effective doses of residue samples were calculated below the permitted dose rate for the public, i.e. 1 mSv y(-1). |
| Databáze: | OpenAIRE |
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