EVALUATION OF EXCESS LIFETIME CANCER RISK CAUSED BY EXTERNAL EXPOSURE DUE TO NATURAL RADIOACTIVITY IN BOLU, TURKEY
SIGMA JOURNAL OF ENGINEERING AND NATURAL SCIENCES-SIGMA MUHENDISLIK VE FEN BILIMLERI DERGISI, cilt.38, sa.2, ss.945-954, 2020 (ESCI)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 38 Sayı: 2
- Basım Tarihi: 2020
- Dergi Adı: SIGMA JOURNAL OF ENGINEERING AND NATURAL SCIENCES-SIGMA MUHENDISLIK VE FEN BILIMLERI DERGISI
- Derginin Tarandığı İndeksler: Emerging Sources Citation Index (ESCI), Academic Search Premier, Directory of Open Access Journals
- Sayfa Sayıları: ss.945-954
- Anahtar Kelimeler: Outdoor gamma dose rate, natural radioactivity, scintillation detector, AEDE, cancer risk, Bolu, ENVIRONMENTAL-RADIOACTIVITY, OUTDOOR RADIOACTIVITY, REGION, CITY
- Akdeniz Üniversitesi Adresli: Evet
Özet
In this study, the gamma dose rates in outdoor air at seventy-seven points around Bolu province were meausured using a counter (Eberline, ESP-2). Radiological hazards were evaluated by estimating the excess lifetime cancer risks caused by external exposure. The gamma dose rates measured varied from 11 to 68 nGyh-1with an average value of 22 nGy h(-1). The avarege value of the corresponding outdoor annual effective dose and the excess lifetime cancer risk was found as 27.23 mu Sv and 0.95x10(-4), respectively. These values could be compared to other studies which existed in Turkey and also in the world.