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Một ủy ban của chính phủ trong Kyrghyzstan được thành lập 1994-1996 đánh giá tình hình bức xạ ở hồ Issyk-Kyol và xác định liệu phóng xạ trong các lĩnh vực với mức độ bức xạ cao là tự nhiên hoặc nhân tạo. Một cuộc điều tra mức độ bức xạ dọc theo bờ biển của hồ Issyk-Kyol được tiến hành bởi Kyrghyz các nhà khoa học (SCSC, 1990) và gần đây hơn của Hamby và Tynybekov (1999). SCSC (1990) khảo sát bao gồm khoảng 400 phép đo và khảo sát của chúng tôi bao gồm hơn 2200 các phép đo được thực hiện dọc theo. | 15 Uranium Thorium and Potassium in Soils along the Shore of Lake Issyk-Kyol in the Kyrghyz Republic D.M. Hamby and A.K. Tynybekov CONTENTS 15.1 Introduction.371 15.2 Methods.372 15.2.1 Sample Collection.372 15.2.2 Sample Counting.373 15.2.3 Calculation of Elemental Concentrations . 373 15.3 Results and Conclusions.374 Acknowledgment.376 References.376 15.1 INTRODUCTION Lake Issyk-Kyol is situated in the northeast region of Kyrghyzstan one of the independent republics of the former Soviet Union and bordered by China to the south and east Kazakstan to the north and Uzbekistan and Tajikistan to the west Figure 15.1 . The lake is one of the largest in Central Asia having a surface area of 6240 km2 and a depth of 668 m. It lies in the valley between the Terskei mountains to the north and the Kungei mountains to the south at a surface elevation of 1550 m CAGC 1987 . The briny lake fed by mountain runoff which flows through about 80 small rivers and creeks has no discharge streams. Lake Issyk-Kyol is used for swimming boating and fishing but because of its salt content it is not a direct source of drinking water. During the Soviet era hotels along the central northern shore of Lake Issyk-Kyol were well-known vacation spots for the Soviet elite but From Hamby D. 2002. Environmental Monitoring and Assessment 73 2 101-108. Reprinted with permission by Kluwer Publ. 371 2004 by CRC Press LLC 372 Environmental Monitoring FIGURE 15.1 Location in Central Asia of the Kyrghyz Republic and Lake Issyk-Kyol. From Hamby D.M. and Tynbekov A.K. 2002. Environ Monitor. Assess. 73 101-108. With permission. otherwise it remained in virtual isolation from the outside world until the early 1990s. Today the lake attracts tourists from all over Central Asia. A government commission in Kyrghyzstan was established from 1994 to 1996 to assess the radiation situation at Lake Issyk-Kyol and determine whether radioactivity in areas with elevated radiation levels was natural or man-made. An .
