Article
Environmental Sciences
Lingaiah Keerthan, Ramesh RamyaPriya, Lakshmanan Elango
Summary: The study evaluated the water quality of the Cauvery river and adjacent groundwater in the lower basin region. It found that both river water and groundwater were unsuitable for drinking and irrigation purposes, particularly during dry seasons. The water quality was influenced by rock-water interactions and anthropogenic activities, highlighting the importance of monitoring and controlling contaminants.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2023)
Article
Environmental Sciences
Saravanan Jothivel, Dafang Fu, Sheela Mary, Endon R. Rene, Rajendra Prasad Singh
Summary: The study focused on investigating pollution levels in open wells, bore wells, and drinking water from riverine community sites. The suitability of the water for drinking and irrigation was assessed using user-specific water quality indices and parameters quality index. Principal component analysis was also performed to analyze the physio-chemical parameters. Most of the water quality parameters showed notable variation, with some exceeding the standards set by authorized organizations. The drinking water samples were found to be of good quality for human health and hygiene, but none were excellent. The open and bore well water samples were generally suitable for agricultural purposes, with a few exceptions that were of poor or fair quality.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Yong Jie Wong, Yoshihisa Shimizu, Akinori Kamiya, Luksanaree Maneechot, Khagendra Pralhad Bharambe, Chng Saun Fong, Nik Meriam Nik Sulaiman
Summary: This study utilized artificial neural network (ANN) and support vector machine (SVM) models for monsoonal river classification in Malaysia, optimizing the use of three water quality parameters to improve efficiency and accuracy in river monitoring.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2021)
Article
Water Resources
Anjana Ekka, Saket Keshav, Saket Pande, Pieter van der Zaag, Yong Jiang
Summary: This study examines the hydrological alterations resulting from reservoir construction and water abstraction in the upper Cauvery river basin in India. Using a landscape-based hydrological model, the study analyzes the impacts of dams on river flow regimes. The results show that reservoir impoundment and water abstractions have modified the natural flow regimes, particularly in terms of median monthly flow, 1-day minimum flow, and low pulses. These findings provide valuable insights for water managers to sustain natural flow regimes and contribute to the sustainable management of river basins in India.
JOURNAL OF HYDROLOGY-REGIONAL STUDIES
(2022)
Article
Environmental Sciences
Jayakumar Renganathan, Insamam S. Ul Huq, Kamaraj Ramakrishnan, Manthiram Karthik Ravichandran, Ligy Philip
Summary: The study identified the presence of various PhACs in the surface waters of the River Cauvery, with some being strongly influenced by seasonality and positively correlated with PCPs, HMs, and nutrients. Moreover, higher concentrations of PhACs were recorded in the upstream and wastewater discharge points.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Wenxun Dong, Yanjun Zhang, Liping Zhang, Wei Ma, Lan Luo
Summary: A novel river water quality prediction model combining pollution source decomposition and time series decomposition is developed in this study. The model shows an acceptable accuracy in making long-term water quality predictions for the Yangtze River, and predicts that the concentration of CODMn will meet the water quality targets at most stations, while the concentration of TP will not meet the targets at 28.5% of the stations.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Civil
Sujay Raghavendra Naganna, Sreedhara B. Marulasiddappa, Muttana S. Balreddy, Zaher Mundher Yaseen
Summary: Accurate streamflow forecasts are crucial for water reservoir management and flood preparation, but no model can achieve 100% certainty due to data noise and incompleteness. This study applies deep learning and advanced machine learning techniques to predict daily streamflow in different stream orders of the Cauvery River, India, and finds that these techniques outperform conventional models in terms of accuracy.
JOURNAL OF HYDROLOGY
(2023)
Article
Environmental Sciences
Yonggui Wang, Zhen Song, Hui Bai, Hongjin Tong, Yan Chen, Yao Wei, Xiaoyu Wang, Shuihua Yang
Summary: In this study, redundancy analysis and stepwise multiple linear regression were used to assess the effects of land use on water quality in the Tuojiang River Basin. The results showed that the improvement in water quality depended on the protection of small-scale areas and the relationship between water quality parameters and land use varied across different spatial scales. This study provides important information for land use planning and implementing measures to protect water quality.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Multidisciplinary Sciences
Emma Krasovich, Peiley Lau, Jeanette Tseng, Julia Longmate, Kendon Bell, Solomon Hsiang
Summary: Water quality monitoring is crucial for policy-making to address pollution. However, inconsistent measurement and reporting practices hinder the comparison of observations across water bodies, making it difficult to analyze spatial patterns and long-term trends in pollution. In this study, we harmonized 9.2 million water quality readings from 226 monitoring authorities in the Mississippi/Atchafalaya River Basin, creating a standardized dataset of 4.8 million observations for nitrogen and phosphorus compounds. This dataset represents the largest record of these pollutants in a single river network, enabling comparisons across time and space.
Article
Geography, Physical
Yibo Yang, Xiaomin Fang, Wenxia Han, Yongli Wang, Albert Galy
Summary: The relative contribution of the westerlies and the Asian monsoon in regulating the evolution of the Cenozoic Asian interior environment has been studied using oxygen isotopes. The results show a transition at 33 million years ago, where the rainfall from the westerlies decreased and the contribution from the monsoon increased. This transition was primarily controlled by the retreat of the Para-Tethys Sea.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2022)
Article
Environmental Sciences
V. Pownkumar, P. S. Ananthan, A. Ekka, Neha W. Qureshi, T. Velumani
Summary: Human activities that alter and fragment riverine landscapes have negatively impacted fish biodiversity, leading to a reduction in fish species. Recognizing the ecosystem services provided by fish populations and understanding the links between river ecosystems and fisheries is crucial for effective conservation efforts.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2022)
Article
Environmental Sciences
Kimberly J. Van Meter, Victor O. Schultz, Shuyu Y. Chang
Summary: Increases in nitrogen (N) contamination have occurred due to the application of fertilizer, livestock density, and population growth. The accumulation of nitrogen in groundwater within the Upper Mississippi River Basin (UMRB) has been estimated to be approximately 15 Tg. This highlights the significance of considering historical nitrogen when predicting future water quality.
ENVIRONMENTAL RESEARCH LETTERS
(2023)
Article
Environmental Sciences
Adela Halmagyi, Anca Butiuc-Keul, Martin Keul, Cristina Dobrota, Laszlo Fodorpataki, Adela Pintea, Aurel Mocan, Valeria Pop, Ana Coste
Summary: The environmental quality of the Aries River basin is significantly affected by historic mining activities and contemporary impacts. The study found that organic chlorinated pesticides, monocyclic aromatic hydrocarbons, polycyclic aromatic hydrocarbons, and metals in the water had effects on cyanobacteria and plants. These impacts alter the physiological characteristics of organisms in the water.
Article
Environmental Sciences
Ayaz Ul Haq, Said Muhammad
Summary: This study aimed to examine the water quality of the Ghizer River Basin (GRB) in northern Pakistan for drinking and irrigation. The results showed that the water quality was good and suitable for both purposes.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Studies
Cathal O'Donoghue, Cathal Buckley, Aksana Chyzheuskaya, Stuart Green, Peter Howley, Stephen Hynes, Vincent Upton, Mary Ryan
Summary: This paper uses Ireland as a case study to investigate the relationship between rural economic activities and river water quality. Findings suggest that factors such as forestry level, industrial activity, intensity and type of agriculture, and wastewater treatment type in an area all play critical roles in influencing water quality. The study shows an improvement in the relationship between agriculture and water quality over time, particularly during periods with legislative measures and financial support aimed at improving water quality.
Article
Environmental Sciences
S. Dhanakumar, G. Solaraj, R. Mohanraj
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2015)
Article
Environmental Sciences
Menon Manjula, R. Mohanraj, M. Prashanthi Devi
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2015)
Article
Environmental Sciences
A. Arivoli, R. Mohanraj, R. Seenivasan
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2015)
Article
Environmental Sciences
S. Dhanakumar, K. Rutharvel Murthy, G. Solaraj, R. Mohanraj
ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY
(2013)
Article
Engineering, Environmental
R. Seenivasan, V. Prasath, R. Mohanraj
ENVIRONMENTAL GEOCHEMISTRY AND HEALTH
(2015)
Article
Environmental Sciences
Rangaswamy Mohanraj, Govindaraj Solaraj, Selvaraj Dhanakumar
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2011)
Article
Multidisciplinary Sciences
R. Mohanraj, S. Dhanakumar, G. Solaraj
SCIENTIFIC WORLD JOURNAL
(2012)
Article
Forestry
R. Mohanraj, J. Saravanan, S. Dhanakumar
IFOREST-BIOGEOSCIENCES AND FORESTRY
(2011)
Article
Environmental Sciences
Manjula Menon, Rangaswamy Mohanraj, Wangkheirakpam Sujata
Summary: The study found that despite extensive spraying of neonicotinoids in paddy fields in South India, the residues in the water-soil systems were below detectable limits. Due to susceptibility to photolysis and rapid microbial degradation, neonicotinoids exhibited low persistence in the delta region.
BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY
(2021)
Article
Geosciences, Multidisciplinary
R. Mohanraj, R. V. Akil Prasath, A. Rajasekaran
Summary: Prosopis juliflora is a dominant invasive plant species widely distributed in arid and semi-arid regions of the world. The invasion has ecological implications and brings socio-economic benefits to the local community. Converting the invaded lands to silvicultural/agricultural activity is seen as a viable alternative to address food security, ecological imbalance, soil degradation, and climate change. The study examines coexisting vegetation, soil nutrient profile, and heavy metal concentrations in the invaded lands in Southern India. The results suggest the potential for silvicultural maneuvers prioritizing native flora.
Article
Pharmacology & Pharmacy
Raghini Mohanraj, Pratibha Ramani, Priya Premkumar, Anuja Natesan, Herald J. Sherlin, Gheena Sukumaran
JOURNAL OF PHARMACY AND BIOALLIED SCIENCES
(2017)
Article
Engineering, Environmental
R. Seenivasan, V. Prasath, R. Mohanraj
ENVIRONMENTAL PROCESSES-AN INTERNATIONAL JOURNAL
(2016)
Article
Environmental Studies
Manjula Menon, Prashanthi M. Devi, Mohanraj Rangaswamy
LANDSCAPE RESEARCH
(2016)
Article
Oceanography
C. H. Ramesh, R. Mohanraj, K. N. Murthy, P. Karthick, S. Narayana
INDIAN JOURNAL OF GEO-MARINE SCIENCES
(2014)
Article
Geochemistry & Geophysics
Rutharvel Murthy Kuppurajl, Dhanakumar Selvaraj, Solaraj Govindaraj, Mohanraj Rangaswamy, Jawahar Raj Narayanasamy, Kumaraswamy Kuppanagounderl