波斯托伊纳溶洞空气中的纳米级氡短寿命衰变产物。

Nanosize radon short-lived decay products in the air of the Postojna Cave.

作者信息

Vaupotic Janja

机构信息

Jozef Stefan Institute, Radon Center, P.O. Box 3000, 1001 Ljubljana, Slovenia.

出版信息

Sci Total Environ. 2008 Apr 1;393(1):27-38. doi: 10.1016/j.scitotenv.2007.12.022. Epub 2008 Jan 31.

DOI:10.1016/j.scitotenv.2007.12.022

PMID:18237766

Abstract

At two points in the Postojna Cave, short-term monitoring in summer and in winter of air concentrations of radon and radon decay products, equilibrium factor, unattached fraction of radon decay products (f(un)), barometric pressure, relative air humidity in the cave and air temperature in the cave and outdoor has been carried out, with the emphasis on f(un). Dose conversion factors, calculated on the basis of f(un) values obtained (ranging from 0.09 to 0.65) exceed 5 mSv WLM(-1), by a factor of 11.5-14.0 in summer and of 3.0-4.0 in winter for mouth breathing, and 3.1-3.5 in summer and 1.5-1.7 in winter for nasal breathing.

摘要

在波斯托伊纳溶洞的两个地点，于夏季和冬季对氡及其衰变产物的空气浓度、平衡因子、氡衰变产物的未附着分数（f(un)）、大气压力、溶洞内的相对空气湿度以及溶洞内和室外的气温进行了短期监测，重点是f(un)。根据所获得的f(un)值（范围为0.09至0.65）计算出的剂量转换因子，对于口腔呼吸，夏季超过5 mSv WLM(-1)达11.5至14.0倍，冬季达3.0至4.0倍；对于鼻腔呼吸，夏季为3.1至3.5倍，冬季为1.5至1.7倍。