亚得里亚海受90锶和137铯的放射性污染。

Radioactive contamination of the Adriatic Sea by 90Sr and 137Cs.

作者信息

Franić Z, Bauman A

机构信息

University of Zagreb, Department for Radiation Protection, Croatia.

出版信息

Health Phys. 1993 Feb;64(2):162-9. doi: 10.1097/00004032-199302000-00006.

DOI:10.1097/00004032-199302000-00006

PMID:8449710

Abstract

Results of systematic long-term measurements of 90Sr and 137Cs in surface seawater, performed at four locations along the Croatian coast of the Adriatic Sea, are summarized. Observed trends in annual mean activity concentrations are discussed. 90Sr and 137Cs fallout activities affect seawater activity, the coefficient of correlation between 90Sr fallout activity and 90Sr seawater activity being 0.72. No significant variations of 90Sr mean residence time in the sea-mixed layer on different locations were found. From 1978-1985, the 137Cs:90Sr activity ratio in seawater was 1.52 +/- 0.40. In May 1986, as the consequence of the Chernobyl nuclear accident, this radio increased to 92.4 +/- 58.2.

摘要

总结了在亚得里亚海克罗地亚海岸沿线四个地点对表层海水中90锶和137铯进行的系统长期测量结果。讨论了观测到的年平均活度浓度趋势。90锶和137铯沉降活度影响海水活度，90锶沉降活度与90锶海水活度之间的相关系数为0.72。未发现不同地点海洋混合层中90锶平均停留时间有显著变化。1978年至1985年，海水中137铯与90锶的活度比为1.52±0.40。1986年5月，由于切尔诺贝利核事故，该比值增至92.4±58.2。