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Public ingestion exposure to 226Ra in Ramsar, Iran
, Article Journal of Environmental Radioactivity ; Volume 198 , 2019 , Pages 11-17 ; 0265931X (ISSN) ; Salehi, A. A ; Naddafi, K ; Kardan, M. R ; Yunesian, M ; Nodehi, R. N ; Deevband, M. R ; Shooshtari, M. G ; Sharif University of Technology
Elsevier Ltd
2019
Abstract
Ramsar, in the north of Iran by the Caspian Sea, has been known for the highest natural radiation background on Earth due to the local geology and hydrogeology. The residents and visitors use the hot springs that distribute the natural radionuclides especially 226Ra and its decay products in the areas. Many studies have been undertaken to measure the absorbed dose rate in Ramsar's air, however, no survey has been done to assess public internal exposure from ingestion of natural radionuclides, such as, a broad survey for 226Ra was conducted in foodstuffs and drinking water. This study presents the results of public annual activity intake (Bq) and effective dose (μSv) from ingestion of 226Ra...