Radiological hazard assessment of natural radioactivity in Avcilar region, Turkey: a case of Istanbul University-Cerrahpasa Avcilar Campus

SEZGİN N., Cumali B. O., Aysal N., Kajjumba G. W., Nemlioglu S.

INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH, vol.33, no.12, pp.1443-1455, 2022 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 33 Issue: 12
  • Publication Date: 2022
  • Doi Number: 10.1080/09603123.2022.2098259
  • Journal Name: INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Aquatic Science & Fisheries Abstracts (ASFA), BIOSIS, CAB Abstracts, CINAHL, Educational research abstracts (ERA), EMBASE, Environment Index, Food Science & Technology Abstracts, Geobase, MEDLINE, Pollution Abstracts, Veterinary Science Database
  • Page Numbers: pp.1443-1455
  • Keywords: Soil radiation, gamma spectrometry, radioactive elements, radiological parameters, SOIL SAMPLES, ENVIRONMENTAL-RADIOACTIVITY, DOSE-RATES, RADIATION, PROVINCE, BASIN, RADIONUCLIDES, TH-232, RA-226, LEVEL
  • Istanbul University Affiliated: Yes

Abstract

Radionuclides Ra-226, Th-232, and K-40 can be found in various concentrations in the surface soil. High concentrations of radionuclides in the surface soil may cause radiological risks. This study investigated natural radioactivity levels and artificial radionuclide (Cs-137) levels in the Istanbul University-Cerrahpasa, Avcilar region, Istanbul, Turkey. Radioactivity concentrations were analyzed using the gamma-ray spectrometer. The mean activity concentration of Ra-226, Th-232, K-40, and Cs-137 is 28.55, 29.57, 385.72, and 3.09 Bq kg(-1), respectively. Radiological parameters radium equivalent activity, absorbed dose rate, annual effective dose equivalent, external hazard index, and excess lifetime cancer risk were calculated using activity concentrations. The radiological parameters values were lower than UNSCEAR values, except for the annual gonadal dose equivalent (approximately 10% higher). There is a strong correlation between radiological parameters and radionuclides. Generally, the activities of radionuclides in the region fall within the recommended limits, thus Istanbul-Avcilar region can be considered safe for settlement.