Water quality in Lis river, Portugal

In the past 30 years, the Lis river basin has been subjected to constant ecological disasters mainly due to piggery untreated wastewater discharges. The aim of this study was to evaluate the effect of existing domestic, agricultural, and industrial activities on the water quality, and to propose a w...

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Bibliographic Details
Published in:Environmental monitoring and assessment 2012-12, Vol.184 (12), p.7125-7140
Main Authors: Vieira, Judite, Fonseca, André, Vilar, Vítor J. P., Boaventura, Rui A. R., Botelho, Cidália M. S.
Format: Article
Language:English
Subjects:
Animal Husbandry
Animals
Atmospheric Protection/Air Quality Control/Air Pollution
Bacteria
Biochemical oxygen demand
Chemical oxygen demand
Chlorophyll
Creeks & streams
Dissolved oxygen
Earth and Environmental Science
Ecology
Ecotoxicology
Effluents
Environment
Environmental Management
Environmental monitoring
Environmental quality
Farms
Feces
Freshwater
Hogs
Industrial areas
Laboratories
Monitoring/Environmental Analysis
Pollutants
Portugal
River basins
Rivers
Statistical analysis
Studies
Surface water
Swine
Waste water
Waste Water - analysis
Waste Water - statistics & numerical data
Wastewater discharges
Water Pollutants, Chemical - analysis
Water pollution
Water Pollution, Chemical - statistics & numerical data
Water Quality
Water quality standards
Water resources
Watersheds
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Summary:In the past 30 years, the Lis river basin has been subjected to constant ecological disasters mainly due to piggery untreated wastewater discharges. The aim of this study was to evaluate the effect of existing domestic, agricultural, and industrial activities on the water quality, and to propose a watershed plan to protect and manage surface water resources within the Lis river basin. For this purpose, 16 monitoring stations have been strategically selected along the Lis river stretch and its main tributaries to evaluate the water quality in six different sampling periods (2003–2006). All samples were characterized in terms of organic material, nutrients, chlorophyll, and pathogenic bacteria. Generally, the Lis river presents poor water quality, according to environmental quality standards for surface water, principally in terms of dissolved oxygen, biochemical oxygen demand, total nitrogen, and fecal coliform, which can be associated mainly with the contamination source from pig-breeding farms.
ISSN:0167-6369
1573-2959
DOI:10.1007/s10661-011-2485-9