巴西米纳斯吉拉斯州卡尔达斯矿泉市铀矿及选矿厂场地的运营前环境调查。

Pre-operational environmental survey at the uranium mine and mill site, Poços de Caldas, Minas Gerais, Brazil.

作者信息

Amaral E C, Azevedo H L, Mendonça A H

出版信息

Sci Total Environ. 1985 Apr;42(3):257-66. doi: 10.1016/0048-9697(85)90061-0.

PMID:4001921

Abstract

The first Brazilian uranium mine and mill are located on the Pocos de Caldas plateau, in the Central State of Minas Gerais. The pre-operational environmental survey was carried out over a period of two years by the Brazilian Nuclear Energy Commission (CNEN), through the Instituto de Radioprotecão e Dosimetria (IRD). The selection of the materials to be monitored, the sampling points and the radionuclides to be analysed were based on critical parameters taking into account the meteorological and hydrological characteristics of the site as well as land use. The results obtained are sufficient to characterize the environmental background of the area, and will allow an assessment of the environmental impact due to the operation of the facility and an evaluation of the adequacy of the effluent emission control measures. In relation to their contribution to the population dose, the results indicated that 226Ra and 210Pb will be the important radionuclides.

摘要

巴西的首个铀矿和铀加工厂位于米纳斯吉拉斯州中部的波苏斯迪卡尔达斯高原。巴西核能委员会（CNEN）通过辐射防护与剂量测定研究所（IRD），在两年时间里开展了运行前环境调查。待监测材料、采样点以及待分析放射性核素的选择，是基于关键参数，并考虑了该场地的气象和水文特征以及土地利用情况。所获得的结果足以描述该地区的环境背景，并将有助于评估该设施运行对环境的影响以及评估废水排放控制措施的充分性。就其对人群剂量的贡献而言，结果表明镭-226和铅-210将是重要的放射性核素。