환경 방사선 생물학적 감시 지표로서 야생 등줄쥐의 방사선 감수성

Radio-sensitivity of Dark-striped Field Mice, Apodemus agrarius, as a Biological Dosimeter in Radio-ecological Monitoring System

Hee-sun Kim, Y. Nishimura, Chong-Soon Kim

Abstract

This study examined the possibility of using dark-striped field mice as a biological indicator for the environmental radio-surveillance. For this study, dark-striped field mice were caught from five areas of Kyonggi, Kyongsang, Chungchong and Cholla provinces. The external morphological characteristics and isoenzymic types of dark-striped field mice were studied after they were captured. Among the external morphological characteristics, the dark-brown coat, dark back stripe, head-to-tail length, tail length, and ear length matched the taxonomical characteristics of dark-striped field mice. The analyses on L-lactate dehydrogenase, aspartate aminotransferase, and malate dehydrogenese revealed that one species of dark-striped field mice, called Apodemus agrarius, was inhabitated throughout a wide range of Korea. On the other hand, the frequency of micronuclei in peripheral polychromatic erythrocytes to survived mice after irradiation also analyzed. The LD50/30 of A. cgrarius and ICR mice were approximately 5 Gy and 7.9Gy, respectively. The results of the study reveal that wild A. asrarius have a high potential as a biological monitoring system to determine the impact of radiation in areas such as those within the vicinity of nuclear power plants.

Key Words : Apodemus agrarius;radiosensitivity, ecological and biological dosimeter. and ICR, 야생 등줄쥐, 방사선 감수성, 환경 방사선, 생물학적 평가지표

Reference

JNFCWT

Online Submission

Korean Radioactive
Waste Society (KRS)

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