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The areas of high natural radioactivity and TENORM wastes

机译:高自然放射性和Tenorm废物的领域

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There are many areas of high natural radioactivity (HINAR) throughout the world. To mention a few, the monazite-bearing sands in the Kerala coast in India and in the coastal regions of the states Espirito Santo and Rio de Janeiro in Brazil; the mineralized volcanic intrusives in the Brazilian states of Minas Gerais and Goias; the hot springs in Ramsar, Iran; the primitive, granitic, schistous and sandstone areas of France; and selected areas in Zaire. Some HINAR areas are such that there are sources of economically feasible ores geologically associated with naturally occurring radioactive materials (NORM). In Brazil, the main technologically enhanced naturally occurring radioactive materials (TENORM) waste-producing ores are the rare earth-rich monazite sands; phosphate rocks; and gold, lead, silver, copper, tin, tantalum and niobium associated with uranium and/or thorium. Some of these orebodies are in HINAR areas which were never investigated; while, on the other hand, some others are in HINAR areas which have been extensively studied. This work discusses the advantage of using the exposure baseline in the Brazilian HINAR areas, whenever available, for the interpretation of exposures to TENORM resulting from the extraction and/or industrial processing of orebodies bearing NORM.
机译:全世界有许多高自然放射性(河南)的领域。提及少数人在印度喀拉拉邦海岸的Monazite承受的沙滩,并在巴西埃斯特里托和里约热内卢的沿海地区;米纳斯吉拉斯和吉拉斯巴西州的矿化火山侵害;伊朗拉姆萨尔的温泉;法国原始,花岗岩,肖麦松和砂岩地区;和扎伊尔的选定区域。一些中间区域使得在地质上与天然存在的放射性物质(常态)有关的经济可行的矿石来源。在巴西,主要技术增强的自然发生的放射性物质(Tenorm)废物生产矿石是罕见的富含地球的单一砂岩;磷酸盐;和金,铅,银,铜,锡,钽和铌与铀和/或钍相关。其中一些矿体在从未调查过的河马区域;另一方面,其他一些其他人在广泛研究的海洋区域。这项工作讨论了在可用时使用巴西海关区域的曝光基线的优势,以解释由轴承规范的提取和/或工业加工产生的曝光给Tenorm。

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