干旱区生态环境知识资源中心(Arid): Radiation hazards and extremophiles bioaccumulation of radionuclides from hypersaline lakes and hot springs

Arid

DOI	10.1007/s13762-023-05154-7
	Radiation hazards and extremophiles bioaccumulation of radionuclides from hypersaline lakes and hot springs
	Abdelkarim, M. S.; Imam, N.
通讯作者	Imam, N
来源期刊	INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
ISSN	1735-1472
EISSN	1735-2630
出版年	2024
卷号	21 期号:3 页码:3021-3036
英文摘要	Radioactivity measurements for water, sediment, microbial films and the bioaccumulation of radionuclides by extremophiles from hypersaline lakes and hot springs were carried out as scarcity studies in the Siwa Oasis, Egypt. Natural and man-made radionuclides were measured using high-resolution & gamma;-spectrometry. Different radionuclides behaved differently in different environmental samples, while radionuclides were higher in microbial films compared to sediment, but all radionuclide levels except Ra-226 in water were generally low. Microbial films from hypersaline lakes had higher concentrations of K-40, while microbial films from freshwater hot springs had the highest concentrations of Ra-226, Th-232 and Cs-137. The calculated radiological hazard index parameters of radium equivalent activity (Ra-eq), absorbed dose rate (D), annual effective dose (AED) and external hazard (H-ex) in the sediment were within acceptable limits, but were higher in the microbial film samples. Otherwise, the potential cancer risk of the three freshwater springs was 0.00244 & PLUSMN; 0.000293, 0.00135.6 & PLUSMN; 0.000172 and 0.00155.2 & PLUSMN; 0.000198. In addition, the bioaccumulation factor for microbial films indicated that they are good accumulators of radionuclides, especially for Ra-226 and Th-232, which may contribute to their effectiveness in removing radionuclides from ecosystems.
英文关键词	Groundwater Microbial film Siwa Oasis Bioaccumulation factor Radiological hazards
类型	Article
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:001050723800001
WOS关键词	NATURAL RADIOACTIVITY ; ORGANIC-MATTER ; WESTERN DESERT ; GROUNDWATER ; URANIUM ; CESIUM ; WATER ; ACCUMULATION ; BEHAVIOR ; SAMPLES
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/404232
推荐引用方式 GB/T 7714	Abdelkarim, M. S.,Imam, N.. Radiation hazards and extremophiles bioaccumulation of radionuclides from hypersaline lakes and hot springs[J],2024,21(3):3021-3036.
APA	Abdelkarim, M. S.,&Imam, N..(2024).Radiation hazards and extremophiles bioaccumulation of radionuclides from hypersaline lakes and hot springs.INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY,21(3),3021-3036.
MLA	Abdelkarim, M. S.,et al."Radiation hazards and extremophiles bioaccumulation of radionuclides from hypersaline lakes and hot springs".INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY 21.3(2024):3021-3036.