STATISTICAL CHARACTERISTICS OF THE ACTIVITY CONCENTRATION IN THE SURFACE-LAYER OF THE ATMOSPHERE IN THE 30 KM ZONE OF CHERNOBYL

被引：15

作者：

GARGER, EK

KASHPUR, VA

GURGULA, BI

PARETZKE, HG

TSCHIERSCH, J

机构：

[1] GSF,UMWELT & GESUNDHEIT FORSCHUNGSZENTRUM,INST STRAHLENSCHUTZ,INGOLSTADTER LANDSTR 1,D-85764 OBERSCHLEISSHEIM,GERMANY

[2] UKRAINIAN ACAD AGR SCI,INST RADIOECOL,KIEV 252033,UKRAINE

来源：

JOURNAL OF AEROSOL SCIENCE | 1994年 / 25卷 / 05期

关键词：

Atmospheric aerosols - Statistical tests - Contamination - Time series analysis - Cesium - Cerium - Boundary layers - Nuclear reactor accidents;

D O I：

10.1016/0021-8502(94)90044-2

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Series of measurements of the daily average activity concentrations of Cs-137 and Ce-144 in the atmospheric surface boundary layer in the 30 km zone around the Chernobyl Nuclear Power Plant are discussed with regard to their statistical characteristics. A high level of fluctuation in the specific activity concentration was found with maxima exceeding the annual average by a factor of 10-20 and lasting up to 14 days. During the years 1987-1991 the absolute values of the fluctuations decreased with time. The decrease of the activity concentrations was found to be higher than that due to radioactive decay alone.

引用

页码：767 / 777

页数：11