river pollution Articles

227 Results found
  • Category: Water & Wastewater ×

  • Subcategory: Water Resources ×

  • Keyword: river pollution ×

Centinela: an early warning system for the water quality of the Cauca River

by IWA Publishing  (Nov. 10, 2014)

The Cauca River is the drinking water source for 1.3 million inhabitants of the city of Cali, Colombia. Although the river discharge is sufficient to handle the water demand of the city all year long, significant water pollution events cause frequent disruption to the Puerto Mallarino Treatment Plant (PMTP) and the water supply service, with ...

PAH analysis and forensic mapping in sediments on Grand Calumet River

by Sitelab Corporation  (Jun. 4, 2014)

DREDGE SITE: Sitelab Corporation was hired by an environmental contractor to analyze 100 sediment samples collected from a post-dredge area covering a 1 mile stretch of river in Hammond, Indiana.  The data was used to determine which of the 25 sample locations would require further assessment.     “We evaluated ...

Effects of air pollution on European ecosystems - Past and future exposure of European freshwater and terrestrial habitats to acidifying and eutrophying air pollutants

by European Environment Agency (EEA)  (Jun. 30, 2014)

Poor air quality not only harms human health; it also impacts the structure and function of ecosystems, often far away from the emission sources. This report focuses on the deposition of airborne sulphur (S) and nitrogen (N) compounds and their negative effects on ecosystems. N- and S-containing air pollutants are released to the atmosphere by ...

Restoring environmental flow: buy-back costs and pollution-dilution as a compliance with water quality standards

by IWA Publishing  (Oct. 20, 2014)

An important challenge for policymakers worldwide is how to respond to increasing water demand while still assuring healthy ecosystems via ‘environmental flows’. In the case of Chile, increasing water demand and frequent water supply shortages are putting pressure on ecosystem water requirements. On the other hand, new environmental ...

Effect of different meteorological fields on the regional air quality modelling over Pearl River Delta, China

by Inderscience Publishers  (Jan. 23, 2014)

This study evaluates the performances of three Community Multiscale Air Quality (CMAQ) model v5.0 simulations that utilise meteorological input data from the 5th-generation Mesoscale Model (MM5), the Weather Research and Forecasting (WRF) model and WRF with Four-Dimensional Data Assimilation (WRF/FDDA). Three sets of CMAQ model simulations were ...

Water quality assessment of a polluted urban river

by Inderscience Publishers  (Oct. 7, 2013)

Urban rivers in Latin America are heavily impacted by human activities that affect their functions and services. This paper shows the results of a water quality assessment for the Reconquista River, the second most polluted urban river in Argentina. They allowed the identification of the main processes of transport of pollutants and the ...

Automatic control of pollutant on a shallow river using surface water systems: application to the Ebro River

by IWA Publishing  (Jun. 5, 2014)

In this paper, the problem of automatic control of pollutant on a shallow river using surface water systems is addressed using a benchmark test case based in the Ebro River. The Ebro River presents flooding episodes in the city of Zaragoza in Spring when snow melts in the Pyrenees. To avoid flooding and high pollutant levels in living areas, some ...

The impact of point sources of pollution on the transport of micropollutants along the river continuum

by IWA Publishing  (Jun. 18, 2014)

The main objectives of the presented study were to quantify the transfer of polychlorinated dibenzo-p-dioxins (PCDDs)/polychlorinated dibenzofurans (PCDFs) (polychlorinated dibenzo-p-dioxins/polychlorinated dibenzofurans) and dioxin-like polychlorinated biphenyls (dl-PCBs) along the river continuum and to evaluate the impact of wastewater ...

Modelling of point and diffuse pollution: application of the Moneris model in the Ipojuca river basin, Pernambuco State, Brazil

by IWA Publishing  (Jul. 19, 2013)

Emissions of pollutants and nutrients are causing several problems in aquatic ecosystems, and in general an excess of nutrients, specifically nitrogen and phosphorus, is responsible for the eutrophication process in water bodies. In most developed countries, more attention is given to diffuse pollution because problems with point pollution have ...

Economic analysis of alternative pollution abatement policies: the case of Buriganga River, Bangladesh

by Inderscience Publishers  (Jun. 2, 2014)

The Buriganga River is a prime example of serious surface water pollution problem. So far the emphasis of pollution abatement policy for this river has been solely on the application of command and control (CAC) mechanisms (standards on emission discharges), however little success has been achieved as the polluters seem to be reluctant to comply ...

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