Results 61 to 70 of about 691 (166)

Submarine groundwater discharge as a major nutrient source in river‐fed vs. tidally dominated estuaries

Limnology and Oceanography, Volume 70, Issue 2, Page 426-442, February 2025.
Abstract The tidal tributaries of the lower Chesapeake Bay experience seasonally recurring harmful algal blooms and the significance of submarine groundwater discharge (SGD) as a nutrient vector is largely unknown. Here, we determined seasonal SGD nutrient loads in two tributaries with contrasting hydrodynamic conditions, river‐fed (York River) vs ...
Stephanie J. Wilson, Joseph J. Tamborski, Bongkeun Song, Peter Bernhardt, Margaret R. Mulholland   +4 more
wiley   +1 more source

Control of Groundwater‐Lake Interaction Zone Structure on Spatial Variability of Lacustrine Groundwater Discharge in Oxbow Lake

Water Resources Research, Volume 61, Issue 1, January 2025.
Abstract Lacustrine groundwater discharge (LGD) is an important water and nutrient source for lakes. Despite its importance, high‐resolution quantifying the spatial variability of LGD remains challenging. Particularly, little studies have explored the impact of the interaction zone structure between lakes and aquifers on this variability. Present study
Xiaoliang Sun, Yao Du, Jiawen Xu, Hao Tian, Yamin Deng, Yiqun Gan, Yanxin Wang   +6 more
wiley   +1 more source

Survey of Radon and Thoron Levels in the Air of Urban and Rural Dwellings in Yazd Province: Perspective of Stone Type and Construction Materials

Indoor Air, Volume 2025, Issue 1, 2025.
The present study was aimed at assessing the concentrations of Rn and Th gases in the indoor air of residential homes in urban and rural areas near the active faults in Yazd province. Sampling and measurements were performed for 6 months (autumn and winter) in 2024 using the RAD7 device.
Samira Jafari Nodushan, Mohammad Hassan Ehrampoush, Fahimeh Teimouri, Reyhane Sefidkar, Hamid Mehrnahad, Rasha S. Ahmed   +5 more
wiley   +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

Spatio‐Temporal Variability of Hyporheic Exchange Processes Across a Stream Network

Hydrological Processes, Volume 38, Issue 12, December 2024.
Hyporheic exchange processes (HEP) scale across stream networks, but only limited knowledge exists about the temporal variability of HEP over the hydrological year and across the stream network. Combining field‐based measurements with numerical modelling, our findings reveal that HEP exhibit high temporal variability throughout the hydrological year in
Clarissa Glaser, Benjamin S. Gilfedder, Christiane Zarfl   +2 more
wiley   +1 more source

The Estimation of Dose Relationships for the Inhalation of Radon and the Difference in Activities During the Year Using RAD7 in Iraq [PDF]

Science Journal of Energy Engineering, 2017
Exposure to radon and its daughters is one of the important contributions for radiation doses to the publics. In this study, concentrations of radon gas were measured in air at Al-Tuwaitha Nuclear Site and some surrounding areas. Measurements were achieved by RAD7 (radon detector), manufactured by DURRIDGE COMPANY Inc.
openaire   +1 more source

222Rn and 220Rn levels of Mansa and Muktsar district of Punjab, India

Frontiers in Environmental Science, 2015
In this study 222Rn (Radon) measurement were performed in water and soil gas and also both 222Rn and 220Rn concentrations were determined in air of Mansa and Muktsar district of Punjab, India.
Rohit eMehra, Pargin eBangotra, Kirandeep eKaur   +2 more
doaj   +1 more source

Study on influence of soil and atmospheric parameters on radon/thoron exhalation rate in the Bangalore University campus, Bengaluru

Radiation Protection and Environment, 2018
In the present study, Radon (222Rn) and Thoron (220Rn) concentration have been measured in the Bangalore University Campus using RAD7 during the postmonsoon season. The results reveal that 222Rn concentration ranged from 360 ± 146 to 643 ± 196 Bq/m3 with
M B Karthik Kumar, N Nagaiah, Gladys Mathews, M R Ambika   +3 more
doaj   +1 more source

Radiological and environmental assessment of radon emanation from soil and water in the Islamabad region of northern Pakistan

Discover Soil
The aim of this study was to assess radon concentrations and associated health impacts from soil and drinking water in the Margalla hills region of Islamabad. The radon concentration in all water samples was below the safe limit of 11 BqL−1, as suggested
Muhammadhu Ameen Muhammadhu Azmin, Hannan Younis, Mavia Anjum, Ansar Abbas, Inza Tariq   +4 more
doaj   +1 more source

Radon activity measurements in irrigation water from Qassim Province by RAD7.

Journal of environmental biology, 2018
The present study deals with investigating radon level in groundwater, which is being used for irrigation in the environs of Qassim province, Saudi Arabia. Ninety nine samples of groundwater were collected from eight cities in Qassim province. Radon concentrations in the collected water samples were measured with RAD7 electronic radon detector ...
A, El-Taher, Ahmad, Al-Turki
openaire   +1 more source