Quality assessment of packaged water brands in a university teaching hospital in southern Nigeria by Ekanem AM, Benson SA, Ekpuk IN, Amafaye WD, Akpan IE, Udo AI, Edem SA, David E, Akpabio KO, Nneamaka AA

“…Results of analysis were compared with values in WHO Guidelines and the Nigerian Industrial Standards for Drinking Water Quality. Results: Physical analysis of the water samples revealed no abnormalities. …”
Get full text

Loading of Ce and n co-doped TiO2 composites onto modified shell powder synergism of adsorption and photocatalysis phytic acid removal: performance and mechanism by Wei Zhang, Wei Zhang, Wei Zhang, Zheng Wang, Jinkai Shu, Jinkai Shu, Aihe Wang, Aihe Wang, Hai Lin, Xuchao Yan

Get full text

How do agricultural polders modulate nutrient dynamics under extreme flooding: Insights for water management in lowland areas by Hui Xie, Yunliang Li, Meiqi Shang, Jianwei Dong, Xiaoxian Tang, Nengsheng Wan, Yang Wang, Xijun Lai

“…However, such increase had little impact on the water quality of receiving rivers which showed generally better water quality than in early flood rising period. …”
Get full text

Integrating Satellite Data and In-situ Observations for Trophic State Assessment of Renuka Lake, Himachal Pradesh, India by Sujit Kumar Jally, Rakesh Kumar and Sibabrata Das

“…Notably, the exponential regression model outperformed other regression models (linear, logarithmic, polynomial, and power), achieving a better model output (R2=0.94). Additionally, water quality parameters, namely pH and dissolved oxygen (DO), were measured using the TROLL 9500 multi-parameter instrument. …”
Get full text

Investigation of improvements to city areas of importance to the implementation of clean water by Feby Milanie

“…The search process used relevant keywords such as "clean water services" OR "water distribution systems," OR "water quality improvement" across each database. From 967 articles initially identified, four articles were selected after a rigorous selection process applying inclusion and exclusion criteria. …”
Get full text

Growth Of black sea cucumber Holothuria atra in an integrated aquaculture system by Maureen Mercy Pattinasarany, Elizabeth Miklen Palinussa, Jolen Matakupan

“…The study was conducted for 8 weeks and the fish were fed with trash fish at 10% of body weight. Water quality parameters were measured in situ every day except for TOM, ammonia, and nitrate which were measured at the beginning, middle, and end of the study.  …”
Get full text

Stewardship Ecosystem Services Study Series: Assessing Forest Water Yield and Purification Ecosystem Services in the Lower Suwannee River Watershed, Florida by Sonia Delphin, Francisco J. Escobedo, Amr Abd-Elrahman, Alison E. Adams, Jackie Martin, Ronald Cademus

“… Land-use decisions and ecosystem characteristics affect the amounts of nutrients that end up in water bodies and the ability of the land to provide ecosystem services. Water quality is also highly valued by Florida forest landowners and managers. …”
Get full text

Stewardship Ecosystem Services Study Series: Assessing Forest Water Yield and Purification Ecosystem Services in the Lower Suwannee River Watershed, Florida by Sonia Delphin, Francisco J. Escobedo, Amr Abd-Elrahman, Alison E. Adams, Jackie Martin, Ronald Cademus

“… Land-use decisions and ecosystem characteristics affect the amounts of nutrients that end up in water bodies and the ability of the land to provide ecosystem services. Water quality is also highly valued by Florida forest landowners and managers. …”
Get full text

Health of Fish Communities in the Lower Reaches of the Dongjiang River by MA Zhuoluo, HU Lianghe, JIANG Renfei, WANG Sai

“…Dongjiang River is an important water source and ecological corridor in the Guangdong-Hong Kong-Macao Greater Bay Area.Understanding the health of fish communities in the lower reaches of this river is vital for the water ecological protection of the basin.This paper investigates the fish in the lower reaches of the Dongjiang River,and the abundance index (d_M) and Shannon Weiner index (H′) are selected to evaluate the community health,and the relationship between them and water quality factors is explored.The results show that there are 7 orders,19 families,43 genera,and 50 species of fish found in the lower reaches of this river,of which Cypriniformes is the largest and Perciformes is the second,with 10 species of exotic fish.There is a significant or extremely significant negative correlation between the health of fish communities and water pollution factors such as COD_Cr,BOD₅,and TP,indicating that water pollution affects the health of fish communities.The river encroachment,rigid transformation,and the construction of gate and dam facilities disrupting habitats have also adversely influenced fish communities.Exotic fish have been found in most sampling sites and are more dominant in polluted rivers.It is necessary to develop scientific management strategies and measures from various aspects,including improving river water quality,restoring the diversity and connectivity of fish habitats,and strengthening the management and prevention of exotic fish. …”
Get full text

Defining Established and Emerging Microbial Risks in the Aquatic Environment: Current Knowledge, Implications, and Outlooks by Neil J. Rowan

“…As emphasis is placed on water quality, particularly surrounding efficacy of decontamination at the wastewater treatment plant level, this review also touches upon other related emerging issues, namely, the fate and potential ecotoxicological impact of untreated antibiotics and other pharmaceutically active compounds in water. …”
Get full text

Water security in North Carolina’s most economically insecure county: a case study by Hana C Long, Beverly Collins-Hall, Kaelan Moore, Bethany Cutts, Jacqueline MacDonald Gibson

“…Concerns about affordability were less prominent than those about water quality. Insufficient water reliability (low flow) was mentioned by many respondents, including those with community water service and those relying on private wells. …”
Get full text

Treatment Project Design for Weakly Saline Water Bodies in Desert Parks and Practice by FENG Yu, ZHANG Wenlei, XU Yufeng, ZHANG Huajun

“…The eutrophication control of a saline park water body in the Inner Mongolia Plateau is conducted by constructing a complete aquatic ecosystem.Acid-alkali adjustment of this water body is carried out to build aquatic plant and animal communities in the lake body,and functional bacterial agents are also supplemented to build and restore microbial communities.Moreover,the stable development of the ecosystem is guaranteed by on-site maintenance measures.The project effect shows that the aquatic ecosystem remains stable after its successful construction,with a clear water body that offers a favorable pollutant removal effect and main water quality indexes significantly better than those before treatment.Specifically,the pH of the water body decreases from 9.09 to 8.75,and the turbidity is lowered from 20.5 NTU to 4.0 NTU.Regarding transparency,it reaches more than 1.5 m at the deepest part of the water body,or even a clear bottom is achieved.The total phosphorus concentration decreases from 0.19 mg/L to 0.03 mg/L,and the COD_Cr concentration is reduced from 109.5 mg/L to 17.0 mg/L.In addition,aquatic animal biomass and the number of species of aquatic animals increase significantly.The above results indicate that the water quality improvement target is achieved.The aquatic ecosystem after treatment with maintenance measures can resist external disturbance to a certain extent,and the implementation of this project can provide a reference for the treatment of saline lakes in plateau areas.…”
Get full text

Study of Seasonal Variation in Groundwater Quality of Sagar City (India) by Principal Component Analysis by Hemant Pathak, S. N. Limaye

“…Principal axis factoring has been used to observe the mode of association of parameters and their interrelationships, for evaluating water quality. Average value of BOD, COD, ammonia and iron was high during entire study period. …”
Get full text

Study on the Construction Plan of Countryside Type Ecological Belt Based on Ecological Orientation:Taking the Ecological Restoration of Ecological Belt of Chunzi River in Longgang... by TANG Yawen, LIU Xuepeng, HUANG Yilong, YU Yuanyan, LUO yao

“…Ecological belt,is the innovative practice of ecological civilization in Guangdong province,the idea and interpretation of happy rivers and lakes,and the product of water management to a certain stage.In order to explore the methods and approaches of ecological restoration in the construction of ecological belt,taking the ecological belt of Chunzi River in Longgang District,Shenzhen as an example,this paper investigates and monitors the water environment and water ecology of Chunzi River in detail by means of field investigation and experimental analysis,and proposes systematically the water ecological restoration scheme in ecological belt construction according to the theory of focal species.The results indicate that:①Through analyzing the structure and diversity indices of aquatic organisms,the water bodies are in a moderate to heavy pollution state,and higher aquatic organisms are dominated by exotic fishes.The aquatic ecosystem is severely damaged;while the terrestrial ecosystem is less disturbed.②The sewage treatment plant (with effluent water quality reaching the ready class III) — integrated constructed wetland-reservoir water quality purification system,the habitat improvement system of optimized forest structure in mountain-waterfront-shallow,and the symbiotic stable ecosystem of “submerged plants-floating-leaved plants-emergent plants-zooplankton-fish” are put forward,and a water ecology pattern of conservation-recreation-protection is built.③In the future,combined with the implementation of the project,continuous monitoring of water environment and water ecology will be carried out,and restoration scheme will be optimized and improved,so as to provide Shenzhen sample for the construction of ecological belt in Guangdong Province.…”
Get full text

Hydrodynamic Effects of River-Lake System Connectivity on Ecological Restoration of Urban Rivers: A Case Study of Liede River by WANG Shaobo, ZHANG Shu, XIONG Yulong, ZHOU Xinmin

“…The study analyzed the driving response patterns of "system connectivity-regulation and storage-water quality." The findings indicate that the average slope of the Liede River bed is 1.95‰, exhibiting typical characteristics of a mountain stream. …”
Get full text

Applications of Remote Sensing and GIS in Monitoring Surface Water of Al-Razzaza Lake: A Review by Afrah Medhat Rashed, Mufid Alhadithi, Fareed M. Alattar, Fayez Ahamd Massarwa

“…The lake water level decreased in the past ten years due to the lack of rain and high temperatures, which affected the water quality and quantity, so it was studied and monitored the decline of the water level and calculate the surface area of the lake by several researchers using remote sensing techniques integrated with the GIS environment. …”
Get full text

Study on Water Environmental Characteristics Based on Comprehensive Pollution Assessment Method with Entropy Weight Optimization by HUANG Wen

“…Finally, the water environmental pollution index values of Sand Lake in 2020 are lower than those monitored in the same period of 2019, suggesting that the water quality of the lake shows an upward trend of change. …”
Get full text

Assessment of the quality of water resources for drinking, agriculture and industry in karstic aquifer of Roein Esfarayen basin of North khorasan province by Mohammad Motamedi Rad, Leila Goli Mokhtari, Shahram Bahrami, Mohammad ali zanganeh asadi

“…For this purpose, sampling of water from water sources was carried out and groundwater quality of the area was evaluated in terms of drinking, agriculture and industry using Schoeller, Wilcox and Langelier diagrams, Water Quality Index( WQI) and groundwater quality index (GQI). …”
Get full text

Residential Environment Induced Preference Heterogeneity for River Ecosystem Service Improvements: A Comparison between Urban and Rural Households in the Wei River Basin, China by Hengtong Shi, Minjuan Zhao, Fanus Asefaw Aregay, Kai Zhao, Zhide Jiang

“…However, they have statistically significant different utility for water quality, water quantity, forest coverage, ecotourism improvements, and reducing soil erosion intensity. …”
Get full text

THE EFFECT OF AUTOMATIC FISH FEEDING TECHNOLOGY ON THE QUALITY OF TILAPIA FISH CULTURE PRODUCTS by Ali Rizal Chaidir, Dedy Wahyu Herdiyanto, Andrita Ceriana Eska, Guido Dias Kalandro

“…Several factors influence the growth of tilapia, such as water quality, feeding process, and quality of the feed provided. …”
Get full text