Radon concentration in drinking water and supplementary exposure in Baita-Stei mining area, Bihor county (Romania)

Abstract

The radon concentration was measured in the drinking water of public water supply and private wells located in the mining area of BăiŢa-Ştei, Bihor County, Romania. The measurements were performed using the LUK-VR system based on radon gas measurement with Lucas cell. The results show that the radon concentrations are within the range of 1.9-134.3 kBq m(-3) with an average value of 35.5 kBq m(-3) for well water, 18.5 kBq m(-3) for spring water and 6.9 kBq m(-3) for tap water. Comparing with previous data from the whole of Transylvania, the average value is two times higher, proving this zone to be a radon-prone area. From the results of this study the effective dose to the population is between 4.78 and 338.43 µSv y(-1). These doses are within the recommended limits of the world organisations.

Investigation of Radon in Groundwater and the Corresponding Human-Health Risk Assessment in Northeastern Saudi Arabia

“…The average radon concentration obtained in the current study is compatible with the surrounding countries, such as Yemen, UAE, Kuwait, Iraq, and Jordan, as shown in Table 2. The results in the present study are far below those of Turkey [43], Algeria [44], India [45], Romania [46], Sudan [47], Iran [48], and China [49]. The geological nature of the sampling area, soil nature, and environment can impact the radon concentration [50].…”

Radon concentration in drinking water in villages nearby Rafsanjan fault and evaluation the annual effective dose

“…And the amount of water is also intended for adults and children 2 and 1.5 L day -1 (Equal to 730 and 547.5 L year -1 ) [6,19,[28][29][30].…”

“…While in the sedimentary type groundwater flows through pores and fractures, continuously. The highest concentration of radon in granite aquifer is measured [6,9]. The presence of 238 U, in granite and its decay produce 234 Th and 226 Ra 226 Ra is causing radon gas that is alpha particle emitter [22].Radon concentration is dependent on the position of the geochemical and geological phenomena such as the presence of faults and folded layers [23].…”

“…The average radon concentration in the wells, springs and tap water was obtained 35.5, 18.5 and 6.9 kBqm -3 , respectively. Effective dose was ranged from 4.78 to 338.43 lSvY -1 , respectively [6].…”

A study on measuring the 222Rn in the Buriganga River and tap water of the megacity Dhaka

“…Therefore, these may be the leading causes of the lower 222 Rn level in the tap water of Dhaka city. Bitlis, Turkey 0.59 to 66.00 [42] Xinjiang, China 0.543 [11] Chiang Mai, Thailand 0.18-1.13 [7] Sabzevaran fault, Iran 17.12 [45] Zarand, Iran 5.16 to 14.4 [47] Kabini River Basin, India 8.5 [48] Sik, Malaysia 0.0171 ± 0.0036 [4] Giresun University, Turkey 0.98 to 27.28 [49] Rajasthan, India 0.5 to 15 [50] Kedah, Malaysia 7.0 ± 0.71 [51] Bihor, Romania 6.9 [52] Nablus, Palestine 1.0 [43] Bursa, Turkey 0.91 to 12.58 [53] Kenya 37 [12] Dhaka, Bangladesh…”