Results 21 to 30 of about 106 (92)

Geospatial examination of tap water pollution in residential areas of the Al-Abbasiya neighborhood, Najaf, Iraq [PDF]

E3S Web of Conferences
The present study measured radon (222Rn) levels in the drinking water obtained from thirty houses distributed within Al-Abbasiya District, Najaf City, Iraq to estimate public health risk and adherence to safety standards set by international ...
Ridha Raya Fadhil, Abbas Shurooq Lafta, Matar Lina Majeed, Yousif Saja Nafea, Alhiti Laith S.   +4 more
doaj   +1 more source

Correction of the radon exhalation rate using the Kalman filtering to reduce measurement errors

Nuclear Engineering and Technology
The RAD7 detector is widely used for measuring the radon exhalation rate from the surfaces of media such as soil, rocks, and building materials. However, during the measurement process, the accuracy of the results is prone to interference due to the ...
Haoyu You, Jianfeng Tang, Zhongkai Fan, Ruomei Xie, Hongzhi Yuan, Yanliang Tan   +5 more
doaj   +1 more source

Indoor risk assessment of radon gas in the science college buildings-University of Mustansiriyah using RAD-7 detector

Iraqi Journal of Physics, 2019
In the present work, a set of indoor Radon concentration measurements was carried out in a number of rooms and buildings of Science College in the University of Mustansiriyah for the first time in Iraq using RAD-7 detector which is an active method for ...
Ali A. Ridha
doaj   +1 more source

Radon concentrations in the Groundwater of Kirkuk city /Iraq [PDF]

Kirkuk Journal of Science
Groundwater is becoming more and more recognized as a crucial and indispensable water supply on a worldwide basis. The previous few decades witnessed a high increase in its demand due to the overpopulation and improving living standards.
Jinan Hawas, Ahmed Ibrahim, Omer Altamimi   +2 more
doaj   +1 more source

Measurement of radon and thoron concentrations of soil- gas in Al-Kufa city using RAD-7 detector

Iraqi Journal of Physics, 2021
This work represents the set of measurements of radon and thoron concentrations levels of soil-gas in Al-Kufa city in Iraq using electric Radon meter (RAD-7). Radon and thoron concentration were measured in soil-gas in 20 location for three depth of (50,
Ali A. Al-Hamidawi
doaj  

Radon‐222 as an Effective Tracer to Distinguish Groundwater Circulation Patterns in the Deep Fault‐Controlled Geothermal System

Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract Groundwater flow regulated by deep faults remains challenging to trace due to structural complexity. This study applies the noble gas tracer 222Rn combined with hydrochemistry and stable isotopes (δ2H, δ18O) to distinguish circulation patterns of geothermal springs along a major fault in the Tibetan Plateau.
Xiaoyan Shi, Xingxing Kuang, Meizhuang Zhu, Linfeng Fan, Xinkang Wang, Gexi Zheng, Yinlei Hao, Chunmiao Zheng   +7 more
wiley   +1 more source

Comparative analysis of factors influencing the measurements of DDL-2 and RAD7 radon monitors

地震科学进展
Based on the parallel observational data from the DDL-2 and RAD7 radon monitors at well Anguo-1 in Pingliang, Gansu Province, this study systematically analyzes the influence of different sampling methods on DDL-2 instrument measurements by integrating ...
Yuxia Yao, Xiaojuan Wang, Chunyan Fan, Xuyan Zhang, Zaipeng Miao, Kang Wang, Bingyu Qian   +6 more
doaj   +1 more source

Indoor radon and thoron from building materials: Analysis of humidity, air exchange rate, and dose assessment

Nuclear Engineering and Technology, 2020
Building materials contribute significantly to the indoor radon and thoron levels. Therefore, parameters that influence the exhalation rates of radon and thoron from building material need to be analyzed closely.
Ahmad Ciptadi Syuryavin, Seongjin Park, Muttaqin Margo Nirwono, Sang Hoon Lee   +3 more
doaj   +1 more source

Using Radon (222Rn) to Trace Variability in Greenhouse Gas Emission From Tree Stems Across Species, Seasons and Stem Heights

Ecohydrology, Volume 19, Issue 3, April/May 2026.
ABSTRACT Emissions from trees are an important component of the global methane (CH4) cycle, but their spatial origins (soil vs. in‐stem), transport pathways and environmental influences are not well constrained. To address these issues, this field study characterized spatial and temporal variability in stem emissions of biologically inert radon (222Rn),
Glory A. Iorliam, Kevan B. Moffett, Amr E. Keshta, J. Patrick Megonigal, Karen L. Knee   +4 more
wiley   +1 more source

Seasonal and Geologic Controls on Submarine Groundwater Discharge‐Derived Nutrient Fluxes to Two Coastal Embayments

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 4, April 2026.
Abstract Submarine groundwater discharge and porewater exchange are critical but often overlooked sources of nutrients to coastal systems. This study investigates how sediment permeability and summer‐winter seasonal dynamics influence the magnitude and biogeochemistry of nutrient fluxes from submarine groundwater discharge and porewater exchange ...
Moira Taylor, Joseph J. Tamborski, Aaron Alorda‐Kleinglass, Nathaniel Maynard   +3 more
wiley   +1 more source