Evaluation of excess lifetime cancer risk caused by external exposure due to natural radioactivity in Bolu, Turkey
Sigma Journal of Engineering and Natural Sciences, vol.38, no.2, pp.945-954, 2020 (ESCI)
- Publication Type: Article / Article
- Volume: 38 Issue: 2
- Publication Date: 2020
- Journal Name: Sigma Journal of Engineering and Natural Sciences
- Journal Indexes: Emerging Sources Citation Index (ESCI), Academic Search Premier, Directory of Open Access Journals
- Page Numbers: pp.945-954
- Open Archive Collection: AVESIS Open Access Collection
- Yıldız Technical University Affiliated: Yes
Abstract
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 μSv and 0.95x10−4, respectively. These values
could be compared to other studies which existed in Turkey and also in the world.