Impacts of anthropogenic activities and calculation of the relative risk of violating surface water quality standards established by environmental legislation: a case study from the Piracicaba and Paraopeba river basins, Brazil

2020 ◽  
Vol 27 (12) ◽  
pp. 14085-14099
Author(s):  
Ana Luiza Cunha Soares ◽  
Carolina Cristiane Pinto ◽  
Sílvia Corrêa Oliveira
Keyword(s):  
Water Quality ◽  
Relative Risk ◽  
Surface Water ◽  
Anthropogenic Activities ◽  
Surface Water Quality ◽  
Quality Standards ◽  
River Basins ◽  
Environmental Legislation ◽  
Water Quality Standards

Developing surface water quality standards in China

2017 ◽  
Vol 117 ◽  
pp. 294-303 ◽  
Author(s):  
Jing Su ◽  
Danfeng Ji ◽  
Mao Lin ◽  
Yanqing Chen ◽  
Yuanyuan Sun ◽  
...  
Keyword(s):  
Water Quality ◽  
Surface Water ◽  
Surface Water Quality ◽  
Quality Standards ◽  
Water Quality Standards

Impact of Overflow on Surface Water Quality in East Brabant, The Netherlands

1990 ◽  
Vol 22 (10-11) ◽  
pp. 277-278
Author(s):  
L. L. Bijlmakers ◽  
R. A. M. Dierx
Keyword(s):  
Water Quality ◽  
Surface Water ◽  
The Netherlands ◽  
Surface Water Quality ◽  
Quality Standards ◽  
Water Quality Standards ◽  
Sewerage System ◽  
Water Composition ◽  
Water Courses ◽  
The Impact

There are more than 900 overflow locations from the combined sewerage system in East Brabant, The Netherlands. The impact of overflow on surface water composition can be considerable, especially because of the characteristics of the water courses in the area. Consequently the water quality standards in force will not be reached. Two examples are examined in detail.

Characterisation and Description of Surface Water Quality in the Threatened Urban Wetlands around the City of Colombo

2011 ◽  
Vol 5 ◽  
pp. 10-19 ◽  
Author(s):  
Missaka Hettiarachchi ◽  
Jayani Anurangi ◽  
Ajith De Alwis
Keyword(s):  
Water Quality ◽  
Surface Water ◽  
Surface Water Quality ◽  
Quality Standards ◽  
Quality Parameters ◽  
Water Services ◽  
Urban Wetlands ◽  
Ambient Water ◽  
Water Quality Standards ◽  
The City

Colombo is a city surrounded by a large and interconnected system of natural wetlands. These wetlands which have historically provided a range of water services to the city are now believed to be threatened by degradation due to the recent changes in the urbanization patterns and urban lifestyle in Colombo. This paper presents a study on the current state and recent trends in surface water quality in a selected segment of these wetlands. The study was carried out as a part of a broader multidisciplinary research. The paper consists of a historical analysis of trends in surface water quality parameters and situation analysis of short term spatial and temporal water quality variation in the study area. The research identified that water quality parameters indicating domestic wastewater related pollution showed an increasing trend during the study period. BOD, Phosphates and Fecal Coliform were recorded in levels exceeding the accepted ambient water quality standards. Concentrations of several heavy metals were also above the ambient water quality standards. A distinct difference was observed in water quality between peripheral areas and internal water ways of the wetland. All evidence directs towards severe water quality degradation in the wetland dominated by domestic waste discharges and scattered solid waste dumps. This condition may lead to a nutrient enrichment of the wetland and cause biological and physical responses that may affect adversely on the water services provided. Key words: Water Quality; Urban Wetlands; Wetland Nutrient Enrichment; Water Services; Urban Water Pollution DOI: http://dx.doi.org/10.3126/jowe.v5i0.2831 J Wet Eco 2011 (5): 10-19

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