This study demonstrates the use of environmental tracers (Water isotopes-δ 18 O–δ 2 H, Radon- 222 Rn, and Electrical Conductivity-EC) as complementary tools for backtracking water source, estimating pipe residence time, monitoring instability quality. Using capital Ethiopia, Addis Ababa, a case site, we demonstrate that isotopes (δ O andδ H) effectively backtrack tap to its source (springs, res...

Abstract The current study presents a radiological water-quality assessment on 64 spring water samples from four Romanian counties. area is abundant in CO 2 -rich waters consumed by locals and tourists. Gross alpha activities ranged between 21 ± 7530 658 mBq L ?1 , with 27% of the exceeding WHO threshold. beta values 40 to 5520 430 29% recommended values. Radionuclide fluctuated 0.6 0.08 81 6 B...

Abstract 222 Rn emanating from environmental dust constitutes an important background component for many low-energy, low-rate experiments. Radon emanation rates and rock, thus, are experiment planning. In this paper, we report measured radon fractions five types of dry differing in grain size composition. These data were obtained by a novel technique γ -spectroscopy, measuring emanated non-eman...

Since more than two years the so-called Counting Test Facility (CTF), the prototype of the BOREXINO solar neutrino experiment, is taking data at the underground laboratories of the LNGS. During its construction and the period of data taking a new method for measuring radioactivity at ultralow levels has been developed. This method is based on a well known type of detector, on miniaturized propo...