Investigation of Long-Term River Water Quality Trends in Hong Kong to Identify Role of Urbanization, Seasons and Pollution Sources

2020 ◽  
Vol 231 (7) ◽  
Author(s):  
Pattiyage I. A. Gomes ◽  
Onyx W. H. Wai
Keyword(s):  
Water Quality ◽  
Hong Kong ◽  
River Water ◽  
River Water Quality ◽  
Pollution Sources ◽  
Water Quality Trends

The role of institutional and legal constraints on river water quality monitoring in Ukraine

2014 ◽  
Vol 72 (12) ◽  
pp. 4745-4756 ◽  
Author(s):  
Nina Hagemann ◽  
Bernd Klauer ◽  
Ruby M. Moynihan ◽  
Marco Leidel ◽  
Nicole Scheifhacken
Keyword(s):  
Water Quality ◽  
River Water ◽  
Water Quality Monitoring ◽  
River Water Quality ◽  
Quality Monitoring ◽  
Legal Constraints

Using Arc GIS to explore the impact of environmental and ecological factors on water body

2021 ◽  
Vol 7 (6) ◽  
pp. 6247-6261
Author(s):  
Xiaoqing Liu ◽  
Juanfen Wang
Keyword(s):  
Water Quality ◽  
Numerical Model ◽  
Point Source ◽  
River Water ◽  
Ecological Factors ◽  
River Water Quality ◽  
Pollution Sources ◽  
Point Source Pollution ◽  
The Impact ◽  
Non Point Source Pollution

As water pollution is more and more serious, ArcGIS is proposed to explore the impact of environmental and ecological factors on water. Taking the river water quality as the research object, this paper simulates and analyzes the endogenous and non-point source pollution and water quality through indoor physical model experiment, hydrological and water quality numerical model and water quality numerical model, and analyzes the impact of different environmental changes on river water quality and pollution sources from micro and macro perspectives. The main contents include: experimental study on the influence mechanism of overlying water velocity, disturbance and water temperature on sediment endogenous release, construction and simulation of watershed non-point source pollution model, construction and simulation of watershed river water quality model, as well as the impact of environmental change on river water quality and quantitative analysis of river pollution sources.

scholarly journals River Water Quality and its Relation with Air Quality: A Long-Term Case Study in a Remote and Pristine NW Italian Headwater Catchment

2017 ◽  
Vol 5 (1) ◽  
pp. 35-47 ◽  
Author(s):  
Marco Casazza ◽  
Franca Maraga ◽  
Gengyuan Liu ◽  
Massimiliano Lega ◽  
Laura Turconi ◽  
...  
Keyword(s):  
Water Quality ◽  
Air Quality ◽  
River Water ◽  
River Water Quality ◽  
Headwater Catchment

An Estimation of Pollution Sources with Monitoring of River Water Quality

1977 ◽  
Vol 10 (7) ◽  
pp. 9-16
Author(s):  
Yuzura Matsuoka ◽  
Hisashi Sumitomo ◽  
Shigeshisa Iwai
Keyword(s):  
Water Quality ◽  
River Water ◽  
River Water Quality ◽  
Pollution Sources

scholarly journals An approach for decomposing river water-quality trends into different flow classes

2021 ◽  
Vol 755 ◽  
pp. 143562
Author(s):  
Qian Zhang ◽  
James S. Webber ◽  
Douglas L. Moyer ◽  
Jeffrey G. Chanat
Keyword(s):  
Water Quality ◽  
River Water ◽  
River Water Quality ◽  
Water Quality Trends

Exploring the Role of Ecological Groin in Improving River Water Quality: A Case Study in Wangyu River, China

2013 ◽  
Vol 361-363 ◽  
pp. 589-594
Author(s):  
Cong Cong Chen
Keyword(s):  
Water Quality ◽  
River Water ◽  
Bottom Water ◽  
Stream Water ◽  
Suspended Solid ◽  
River Water Quality ◽  
Particulate Phosphorus ◽  
Stream Water Quality ◽  
Surface Intermediate

The ecological groin being built using elastic filter bulb with biologic filler, has received attention in the community for its role in improving stream water quality through altering stream hydrodynamics, intercepting sediment and thereby reducing the sediment-attached nutrients. As an important watercourse for the project Transferring Yangtse River into Taihu Lake, Wangyu River, was chosen in this study to investigate the effect of ecological groin based on two sampling campaigns in April 2012. The results showed that suspended solid (SS) and total phosphorus (TP) concentration in the water decreased significantly after the ecological groin. The SS and TP concentration in the surface, intermediate and bottom water decreased after the ecological groin by 53.5% and 12.7%, 44.0 %and 14.5%, and 35.5% and 9.3%, respectively, which were greatly related to the facts that ecological groin favored sedimentation and that the total particulate phosphorus accounted for up to 75.0% of TP in the water. Comparatively, TN concentration in the surface, intermediate and bottom water decreased after the ecological groin by 5.6%, 2.4% and 5.1%, respectively. The findings of this study enable us to gain insight into the role of ecological groin in improving river water quality.

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