The corrosive well waters of Egypt's western desert

1979 ◽  
Keyword(s):  
Western Desert ◽  
Well Waters

The origin and hydrochemistry of deep well waters from the northern foot of Mt. Fuji, central Japan

2016 ◽  
Vol 50 (3) ◽  
pp. 227-239 ◽  
Author(s):  
Muga Yaguchi ◽  
Yoichi Muramatsu ◽  
Hitoshi Chiba ◽  
Fumiaki Okumura ◽  
Takeshi Ohba
Keyword(s):  
Central Japan ◽  
Deep Well ◽  
Well Waters

QUASI-POLYGONAL RIDGE NETWORK ASSOCIATED WITH NON-TECTONIC SAG SYNCLINES IN THE EOCENE DRUNKA FORMATION, WESTERN DESERT, EGYPT: EVIDENCE FOR HYPOGENE KARST?

2017 ◽  
Author(s):  
Barbara J. Tewksbury ◽  
◽  
Alexander P. Holmwood ◽  
Mia E. Ratino ◽  
Elhamy A. Tarabees ◽  
...  
Keyword(s):  
Western Desert

scholarly journals Study of Well Waters from High-Level Natural Radiation Areas in Northern Vietnam

2021 ◽  
Vol 18 (2) ◽  
pp. 469
Author(s):  
Van-Hao Duong ◽  
Thanh-Duong Nguyen ◽  
Miklos Hegedus ◽  
Erika Kocsis ◽  
Tibor Kovacs
Keyword(s):  
Natural Radionuclide ◽  
World Health ◽  
Natural Radiation ◽  
Lifetime Cancer Risk ◽  
Northern Vietnam ◽  
Health Organization ◽  
High Level ◽  
Radiological Hazard Indices ◽  
Well Waters

The determination of natural radionuclide concentrations plays an important role for assuring public health and in the estimation of the radiological hazards. This is especially true for high level radiation areas. In this study, 226Ra, 228Ra and 238U concentrations were measured in well waters surrounding eight of the high-level natural radiation areas in northern Vietnam. The 226Ra, 228Ra and 238U activity concentrations vary from <1.2 × 10−3–2.7 (0.46), <2.6 × 10−3–0.43 (0.07) and <38 × 10−3–5.32 Bq/L (0.50 of median), respectively. 226Ra and 238U isotopes in most areas are in equilibrium, except for the DT-Thai Nguyen area. The calculated radiological hazard indices are generally higher than WHO (World Health Organization) recommendations. Average annual effective dose and excess lifetime cancer risk values due to drinking well water range from to 130 to 540 μSv/year and 7.4 × 10−6 to 3.1 × 10−5, respectively.

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