Uranium isotopes and several heavy elements in selected waters in Quang Nam-Da Nang provinces, Central Vietnam

IF 1.5 3区 化学 Q3 CHEMISTRY, ANALYTICAL
Chau Nguyen Dinh, Van-Hao Duong, Tien Chu Trung, Thanh-Xuan Pham Thi, Truc Nguyen Ngoc, Hoang Ha Nguyen Thi, Que Hoang Dinh, Hung Tran Danh, Mohamed Saiyad Musthafa, Tien-Manh Nguyen, Tuvshinsainkhan Ganbaatar, Tibor Kovács
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引用次数: 0

Abstract

238U and 234U concentrations, 238U/234U ratios and Na, Ca, Mg, K, Al, As, Cd concentrations were measured in selected surface waters (streams, rivers and lakes), ground waters (dug wells) and underground waters (drill wells and thermal waters) in Quang Nam and Da Nang provinces, Central Vietnam. The mineralization was < 500 mg L−1 and Al, As, Cd contents were a few tenths of µg L−1. 234U and 238U activities were between 0.47–27.6 mBq L−1 and 0.6–15.0 mBq L−1 respectively, these values are lower than WHO recommended limits. Uranium contents trended as Urivers < Ustreams < Ulakes < Udig wells < Uthermal water < Udrill wells. The 234U/238U ratio ranged from 0.69 to 2.31 with 1.26 on average. For groundwaters, the ratio scattered around one. Effects of Nong Son uranium deposit located in Quang Nam region were not observed.

越南中部广南-大浪省部分水域的铀同位素和几种重元素
测量了越南中部广南省和岘港省部分地表水(溪流、河流和湖泊)、地下水(挖井)和地下水(钻井和热水域)中 238U 和 234U 的浓度、238U/234U 的比率以及 Na、Ca、Mg、K、Al、As、Cd 的浓度。矿化度为 < 500 毫克/升,铝、砷、镉含量为几十微克/升。234U 和 238U 放射性活度分别为 0.47-27.6 mBq L-1 和 0.6-15.0 mBq L-1,这些数值均低于世界卫生组织的建议限值。铀含量的变化趋势为:Urivers < Ustreams < Ulakes < Udig wells < Uthermal water < Udrill wells。234U/238U 的比率从 0.69 到 2.31 不等,平均为 1.26。在地下水中,该比率分散在 1 左右。没有观察到位于广南地区的农山铀矿床的影响。
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来源期刊
CiteScore
2.80
自引率
18.80%
发文量
504
审稿时长
2.2 months
期刊介绍: An international periodical publishing original papers, letters, review papers and short communications on nuclear chemistry. The subjects covered include: Nuclear chemistry, Radiochemistry, Radiation chemistry, Radiobiological chemistry, Environmental radiochemistry, Production and control of radioisotopes and labelled compounds, Nuclear power plant chemistry, Nuclear fuel chemistry, Radioanalytical chemistry, Radiation detection and measurement, Nuclear instrumentation and automation, etc.
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