云南某一矿产资源开发利用的环境辐射影响研究

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Abstract

In order to study the environmental radiation impact from the coal mining and germanium processing in the germanium ore located in southwestern Yunnan province, an integrated investigation consists of airborne and ground survey had been carried out, while detailed monitoring followed up in the contaminated areas and hot zones. Concentrations of ²³⁸U and ²²⁶Ra in raw materials (coal) and smelting slag exceeded 1Bq/g, while for the intermediate products, reached 10⁴Bq/kg. The radioactivity concentrations of both gross alpha and beta in waste liquid from mining wells and thermal plant were over 1Bq/L. As a result, the environmental radiation levels enhanced. Radioactivity concentrations in some locations of the rivers across the research area were several times higher than the background level. Activity concentrations in crops grown up on the contaminated soils also increased. Indoor radon concentrations in this area were higher than national average level. The average annual effective dose for public exposure was higher than the average level in China.

Key words： naturally occurring radioactive material radon ²¹⁰Po-²¹⁰Pb radiological impact airborne survey Yunnan

Received: 18 February 2019

PACS:

X591

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	Articles by authors
	WU Qi-fan
	ZHU Pei
	WANG Chen-xiao
	YU Yi-lin
	CAO Zhong-gang
	PAN Zi-qiang

Cite this article:

WU Qi-fan,ZHU Pei,WANG Chen-xiao等. Environmental radiation impact of a mining and processing site in Yunnan Province[J]. CHINA ENVIRONMENTAL SCIENCECE, 2019, 39(10): 4290-4295.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2019/V39/I10/4290

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