[切尔诺贝利事故污染地区森林火灾后果的放射生态与卫生评估]

[Radio-ecological and hygienic assessment of consequences of forest fires in the areas polluted during the Chernobyl accident].

作者信息

Kashparov V A, Lundin S M, Kadygrib A M, Protsak V P, Levchuk S E, Ioshchenko V I, Kashpur V A, Talerko N N

出版信息

Gig Sanit. 2001 Jan-Feb(1):30-5.

Abstract

Retransfer of radionuclides on the condensation trails of Chernobyl radioactive fallouts during forest fires has been experimentally evaluated and their mathematical transfer model verified. It has been shown that radionuclide retransfer will make no great impact on additional pollution of an area even under the most unfavourable conditions. The contribution of convective and non-convective components of transfer to the formation of a radioactive aerosol concentration field has been assessed. Time course of changes in the concentration of radioactive aerosol and its dispersive composition are shown in different phases of fire and at different distance from its source.

摘要

对森林火灾期间切尔诺贝利放射性沉降物冷凝轨迹上放射性核素的再转移进行了实验评估，并验证了其数学转移模型。结果表明，即使在最不利的条件下，放射性核素的再转移对区域的额外污染也不会产生重大影响。评估了转移的对流和非对流成分对放射性气溶胶浓度场形成的贡献。给出了火灾不同阶段以及距火源不同距离处放射性气溶胶浓度及其分散成分的时间变化过程。