Measurement of Radon Concentration in the Soil of Some Areas of the City of Shatrah Using the Nuclear Impact Detector (Cr-39)

Author(s):  
Ibtihaj Ahmed Kadhim
2018 ◽  
Vol 11 (3) ◽  
pp. 92-106 ◽  
Author(s):  
A. M. Marennyy ◽  
M. E. Kiseleva ◽  
N. A. Nefedov ◽  
G. I. Sutiagina ◽  
L. E. Karl

2018 ◽  
Vol 786 ◽  
pp. 393-399
Author(s):  
Heba M. Badran

The main objective of this study is to assess the health hazard due to the indoor radon. CR-39 as time-integrated passive solid-state nuclear track detectors (SSNTDs) were used in the indoor radon measurements of Najran City, Saudi Arabia. CR-39 detectors were distributed in dwellings of different places of the city. The detectors were exposed in the dwellings for two months and then etched in NaOH 6.25 N solution at 70 ±1°C for 5 h. This study revealed that the radon concentration in the dwellings ranged from 15.03±1.9 to 70.48±3.3 Bq m-3 with an average of 34.00±14.0 Bq m-3. Comparison of indoor radon concentration measurements in the different floors showed that the radon concentration in ground floors was slightly higher than that in first floors. Results showed that there is no significant health risk from indoor radon concentration and annual effective dose in the study region.


2018 ◽  
Vol 9 (1) ◽  
Author(s):  
Zoran Ćurguz ◽  
Dragoljub Mirjanić

The paper analyzes the relationship of short-lived progenies of radon and thoron decay. Concentration of progenies is expressed as equilibrium equivalent concentration of EETC (equilibrium equivalent concentration of thoron) and EERC (equilibrium equivalent concentration of radon) abbreviated (EEТC/ EERC). Мeasuring of radon and thoron progenies was carried out in 25 schools in the territory of the City of Banja Luka using CR -39 (RADUET) detectors. Detectors were exposed for six months and were set in the staff room at the height of 30 cm from the ceiling in internal wall. The relationship is determined (EEТC/ EERC) and comparison carried out of obtained results with the world standards, and then the correlation coefficient between radon and thoron was determined.


2020 ◽  
Vol 13 (1) ◽  
pp. 68-73
Author(s):  
U. M. Mirsaidov ◽  
Kh. M. Nazarov ◽  
Sh. G. Shosafarova ◽  
M. M. Mahmudova

The article presents the results of radon monitoring on the territory of Northern Tajikistan. Analysis of the results of the monitoring shows that at present, relatively high values of radon concentration in the atmospheric air are found in the areas where uranium tailings are located, primarily in the city of Istiklol and the Dehmoy tailings dam. This is primarily due to the lack of protective coatings on the surface of the tail material, which turns this area, in fact, into radon-prone areas of technogenic origin. In different parts of the Dehmoy tailings dam, the radon concentration in the atmospheric air varies between 200 and 1000 Bq/m3, and the radon flux density from the surface reaches 65,000 mBq/(m2∙s). On the territory of tailings dam in the city of Istiklol, the value of radon concentration in the atmospheric air is in the range of 44–195 Bq/m3. At the same time, it was found that the radon potential of the tailings dams, where the surface has a protective coating, is much lower. For example, the radon flux density from the surface of the Gafurov tailings dam, where surface is covered with loess-like loams up to 2.5–3.0 m thick, does not exceed 100 mBq/(m2∙s), with average values of 40-60 mBq/(m2∙s); the radon concentration in the atmospheric air is about 55 Bq/m3. Despite the intense exhalation of radon from the surface of some tailings dams, their territory is not currently a residential zone and, accordingly, does not affect the radon situation in buildings located in the settlements nearby. In the cities of Khujand, Buston, Gafurov, Istiklol and the village of Adrasman, the average values of indoor radon concentration do not exceed maximum permissible levels. It is recommended to conduct a full rehabilitation of uranium legacy sites, primarily uranium tailings dams in the city of Istiklol and Dehmoy tailings dam, for the improvement of the radon situation in Northern Tajikistan with consideration for possible expansion of the settlements.


1999 ◽  
Vol 27 (2) ◽  
pp. 202-203
Author(s):  
Robert Chatham

The Court of Appeals of New York held, in Council of the City of New York u. Giuliani, slip op. 02634, 1999 WL 179257 (N.Y. Mar. 30, 1999), that New York City may not privatize a public city hospital without state statutory authorization. The court found invalid a sublease of a municipal hospital operated by a public benefit corporation to a private, for-profit entity. The court reasoned that the controlling statute prescribed the operation of a municipal hospital as a government function that must be fulfilled by the public benefit corporation as long as it exists, and nothing short of legislative action could put an end to the corporation's existence.In 1969, the New York State legislature enacted the Health and Hospitals Corporation Act (HHCA), establishing the New York City Health and Hospitals Corporation (HHC) as an attempt to improve the New York City public health system. Thirty years later, on a renewed perception that the public health system was once again lacking, the city administration approved a sublease of Coney Island Hospital from HHC to PHS New York, Inc. (PHS), a private, for-profit entity.


ASHA Leader ◽  
2013 ◽  
Vol 18 (7) ◽  
pp. 46-48

This year's Annual Convention features some sweet new twists like ice cream and free wi-fi. But it also draws on a rich history as it returns to Chicago, the city where the association's seeds were planted way back in 1930. Read on through our special convention section for a full flavor of can't-miss events, helpful tips, and speakers who remind why you do what you do.


ASHA Leader ◽  
2017 ◽  
Vol 22 (7) ◽  
Author(s):  
Sean Sweeney
Keyword(s):  

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