Results 61 to 70 of about 2,200 (183)

Source analysis of nitrate pollution in a typical tributary of the upper Yellow River using a combined approach of stable isotopes and DOM fluorescence characteristics

River, Volume 4, Issue 4, Page 566-578, November 2025.
Abstract Identifying the sources and characteristics of water pollution is essential for the protection and management of water environments. Nitrate (NO3−) is a key pollutant affecting water quality in the Qingshui River, a typical semi‐arid tributary in the upper Yellow River basin.
Bin Xu, Duo Zhang, Ziyang Wang, Jie Li, Zhiling Du, Longmian Wang, Qingqing Pang, Xiang Zhu, Lei Xie, Ran Tao, Huili Meng, Dongyan Pei, Fuquan Peng   +12 more
wiley   +1 more source

Assessment of Groundwater Quality for Drinking Purposes in Herat Province, Afghanistan: A Water Quality Index Approach

Journal of Studies in Civil Engineering
Understanding groundwater quality is essential for ensuring access to safe drinking water. This study investigates the suitability of groundwater for drinking purposes, employing the Water Quality Index (WQI) and analyzing various physicochemical ...
Kaywan Othman Ahmed, Mohammad Hussain Malaekah, Jamil Bahrami, Raoof Mostafazadeh   +3 more
doaj   +1 more source

Assessment of Drinking Water Quality in Mosul University by Using WQI Model [PDF]

Kirkuk Journal of Science, 2018
Physical, chemical and bacteriological properties of drinking water and its quality index in Mosul University were determined. WQI was calculated through twelve parameters of tested results, this index usage in representation of the overall quality of ...
M. K. AL-Taay, M. A. Abdulhafedh, Abdalaziz Y. T. Alsaffawi   +2 more
doaj   +1 more source

Computing the bridge length: the key ingredient in a continuous isometry classification of periodic point sets

Acta Crystallographica Section A, Volume 81, Issue 6, Page 427-437, November 2025.
We describe an efficient algorithm to compute the bridge length estimating the size of a complete isoset invariant, which classifies all periodic point sets under Euclidean motion.The fundamental model of any periodic crystal is a periodic set of points at all atomic centres.
Jonathan McManus, Vitaliy Kurlin
wiley   +1 more source

Integrating multivariate statistical analysis and canadian water quality index to assess seasonal variation in Duhok Dam, Iraq

EQA
The escalating demand for freshwater resources in arid and semi-arid regions necessitates comprehensive assessments of water quality to ensure sustainable use for domestic and agricultural purposes.
Nihal S. Hanna, Shelan M. Khudhur, Muzhda Q. Qader, Yahya A. Shekha   +3 more
doaj   +1 more source

Rethinking Urban Spaces to Improve Nutrition Security Through Urban Agriculture

Earth's Future, Volume 13, Issue 10, October 2025.
Abstract The current food system damages the environment, increases social inequalities, and is vulnerable to climate shocks and supply chain disruptions. This, and the global urbanization trends, pose the question of how cities will ensure food security for their inhabitants in a sustainable way. Within urban contexts, the most marginalized groups are
Arianna Tolazzi, Nikolas Galli, Dirce Maria Lobo Marchioni, Maria Cristina Rulli   +3 more
wiley   +1 more source

Geochemical and Climatic Influences on Spatiotemporal Water Quality Changes in Drinking Water Source Lakes in Pakistan: Implications for Environmental and Public Health

GeoHealth, Volume 9, Issue 10, October 2025.
Abstract Climate change, rapid urbanization, and population growth are increasingly influencing the quality and quantity of surface water resources, especially in vulnerable reservoir systems. This study investigates the spatiotemporal changes in water features and quality of three key drinking water source lakes‐Rawal, Simly, and Khanpur (RSK ...
Toqeer Ahmed, Saif Ullah, Zulqarnain Satti, Zheng Siyue, Anwar Eziz, Alishir Kurban, Mumtaz Ahmed, Hifza Rasheed   +7 more
wiley   +1 more source

Assessment of the quality of water resources for drinking, agriculture and industry in karstic aquifer of Roein Esfarayen basin of North khorasan province [PDF]

تحقیقات کاربردی علوم جغرافیایی, 2021
Groundwater resources are important part of the sweet water available to humans. The present study studies and evaluates the quality of water resources of karstic basin of Roein Esfarayen.
Mohammad Motamedi Rad, Leila Goli Mokhtari, Shahram Bahrami, Mohammad ali zanganeh asadi   +3 more
doaj  

Constructed wetlands with mining pond integration and paddy field geometry: A regional sewage treatment plant case study

River, Volume 4, Issue 3, Page 351-362, August 2025.
Abstract Discharge from sewage treatment plants can deteriorate river water quality due to improper management or insufficient levels of treatment. To address these challenges, constructed wetland systems (CWSs) have been widely used as a sustainable and effective solution for wastewater management.
Soo Wei Woo, Hui Weng Goh, Khee Ling Woon, Nor Ariza Azizan, Jiei Kobe, Haji Alias bin Mohamed, Chun Kiat Chang   +6 more
wiley   +1 more source

A Comparative Study of Fuzzy Logic and WQI for Groundwater Quality Assessment

Procedia Computer Science, 2020
Abstract Nowadays, human health, as well as environment, are at risk due to uncontrolled usage on natural resources. Groundwater is one of the crucial natural resource, excessively used and contaminated by human beings. It is, majorly contaminated by anthropogenic activities.
null Shwetank, null Suhas, Jitendra Kumar Chaudhary   +2 more
openaire   +1 more source