pollution monitoring Articles
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Pollutant Monitoring in Rivers
Water pollution occurs when harmful substances such as microorganisms or chemicals contaminate a body of water. In the UK, a recent parliamentary report has found that the UK’s rivers have been highly polluted by raw sewage, slurry, and microplastics. The pollution comes from many sources, with agriculture and water companies being the biggest contributors. Here we will outline some of the ...
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Soil sorption characteristics of imidacloprid in different Croatian regions
In Croatia, imidacloprid is increasingly used in olive growing areas against the olive fruit fly. Experiments were conducted to examine the relationship between soil properties, imidacloprid concentration and soil sorption capacity. The linear and the Freundlich model adequately described the imidacloprid sorption. Better sorption was observed at lower imidacloprid concentrations and in soils ...
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Application of multivariate methods in the monitoring of marine environment: simultaneous determination of bromide, bicarbonate, nitrate and sulphide in seawater by ultraviolet spectroscopy
In this paper we present a new ultraviolet (UV) spectroscopic method for the simultaneous and reagentless determination of bromide, bicarbonate, nitrate and sulphide ions in artificial seawater solutions, applicable to the monitoring of the marine environment. We collected the UV spectra of artificial seawater samples with salinity between 8 and 45 psu, having known concentrations of these ...
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Pollution level detection in dump clay liners by hyperspectral imaging
Landfill is the most common and cost–effective method of waste disposal, with collection and transportation accounting for 75% of the total cost. A key point in waste disposal is the picking up and the drainage of percolation fluids to limit the risk of groundwater contamination. Aim of this study was to evaluate the possibility to develop fast and reliable methods to perform an in situ ...
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Water quality assessment of a polluted urban river
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 prioritisation of different areas of the basin for ...
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A study towards implementation of a standalone environmental monitoring device
Environment is an issue of major concern all round the world. Protection of environmental resources such as groundwater or marine environment from contamination became an issue of high priority, which requires special consideration. In order to protect the shores water used in desalination and groundwater from various contaminants that may leak from industrial and ship activities, a remote ...
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Microbiological pollution of surface water in the upper–middle basin of the Reconquista river (Argentina): 2010–2011 monitoring
A microbiological monitoring was conducted on the water at six locations of the Reconquista river, a polluted peri–urban water body of Argentina. Samples were taken from surface water of three tributary streams in the dam outlet and 18 km downstream; samples from the sediments of one of the streams were also taken. For all samples the presence and quantity of coliform bacteria (total ...
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Levels of cadmium, manganese and lead in water and algae; Spirogyra aequinoctialis
This study assessed the ability of filamentous green algae; Spirogyra aequinoctialis to accumulate manganese, cadmium and lead from water. Water pH was also determined. Samples of S. aequinoctialis and their respective water environments were taken from designated sampling points in the city of Blantyre and Malawi during the rainy and dry season in order to capture seasonal variations. The ...
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Remote monitoring of groundwater pollution using geo-electric techniques in undulating sandy terrain, Western Australia
Early-time transient electromagnetic sounding (TEM) and DC resistivity sounding techniques have been used to monitor remotely the changes with time of a groundwater pollution plume at a test site on a sand aquifer. A range of techniques for interpretation of TEM sounding data have been evaluated. All of these were successful in identifying expansion of the plume. The most plausible interpretation ...
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Variations of nitrogen transport in the mainstream of the Yellow River, China
Three sections along the mainstream of the Yellow River were chosen as sites for monitoring the concentration variations of nitrogen species. First, the nitrogen in the water was mainly dissolved and dominated by nitrate–nitrogen. Second, the nitrogen concentrations in the middle stream were much higher than those in the upper stream, and close to those in the lower stream. Third, the nitrogen ...
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TOC monitoring upstream of paper mill wastewater treatment facility using online TOC analyzer - Case Study
At wastewater treatment facilities of various types of manufacturing plants, pollution load monitoring (upstream monitoring) is becoming increasingly important to ensure appropriate and stable operation and water pollution accident prevention. Pollution load varies depending on the operating status of the plant, so continuous monitoring is essential. Continuous and stable measurement of TOC in ...
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Using PRTR database for the assessment of surface water risk and improvement of monitoring in Japan
In April 2003, the first PRTR (Pollutant Release and Transfer Register) was published in Japan. It is shown how the PRTR can be used to improve environmental risk assessment with the objective of reducing risk to ecosystem integrity and human health. By examining the superposition of all chemical releases into rivers, high levels of several contaminants are uncovered. Most of these chemicals have ...
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Assessment of a rainwater harvesting system for pollutant mitigation at a commercial location in Raleigh, NC, USA
Low Impact Development (LID) and Water Sensitive Urban Design have as one of their tenets the use of rainwater harvesting (RWH) systems to provide water for use on site. Historically implemented in arid or semi-arid regions, RWH has recently surged in popularity in more humid regions, such as the southeastern USA, due to increased interest in water conservation during severe drought conditions. ...
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Overcoming Pollution with Data & Collaboration
On Feb. 18th, 2021, over 400 participants tuned in to a virtual SWAN-WIPAC Workshop sponsored by Siemens to discuss “Overcoming Pollution - From Monitoring to Solutions.” The event opened with a keynote address by UK Member of Parliament Philip Dunne, who recently introduced a Private Member’s Bill to address sewage river pollution and water quality issues in the UK. Mr Dunne ...
By SWAN Forum
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Oil pollution in the Caspian Sea coastal waters
The study aims to investigate hydrocarbon and pollutant concentrations in the southern coastal waters of the Caspian Sea to trace their origins and nature, including the effect of the beach materials on hydrocarbons for 11 sites in Golestan, Mazandaran, and Guilan provinces. Samples were collected from sandy and rocky sites for gas chromatography in five carbon ranges of gasoline, diesel oil, ...
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A statistical approach applied to trace metal data from biomonitoring studies
This work underlines the importance of the statistical procedures necessary for the significant assessment of analytical data of heavy metals derived from marine organisms (biomonitors) collected at five stations in Ustica at the Southern Tyrrhenian Sea. The statistical method described indicates that, where the differences among the averages of Pb, Cu and Zn concentrations in the molluscs of the ...
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Application of first-order reliability method to modelling the fate and transport of benzene in groundwater
Parameter uncertainty plays a significant role in decision making regarding groundwater contamination and remediation, especially for non-conservative chemicals. This paper presents a probabilistic screening model to accommodate parameter uncertainty in the aquifer media, and physical–chemical parameters, using the first-order reliability method (FORM). The application of the developed model is ...
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Analysis of the heavy metal pollutants in sediment samples collected from Thane Creek of Maharashtra, India
The wetland of Thane Creek, located at Thane, Mumbai, India, has attracted much attention of environmental biologists over the last few decades, as this creek has been subjected to a lot of pollution from the Asia's biggest Thane–Belapur industrial complex located at the south of Mumbai harbour along the west coast of India. This paper advocates ecological studies with special reference to the ...
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A comparative study of the pollution status of Sakumo II and Muni Lagoons in Ghana
The pollution status of Sakumo II and Muni Lagoons and Mamahuma and Gbagbla Ankonu feeder streams, which feed Sakumo II along the coast of Ghana, were assessed and compared. As expected of saline waters, pH values of both lagoons fell within a slightly neutral to saline range whilst, the feeder streams were moderately saline. Conductivity distribution also showed saline (>5.0 mS cm−1) ...
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A Procedure to assess Contaminated Soil Ecotoxicity
Abstract :Two polluted soil samples were assessed for both acute (Microtox®,Daphnia magna,Thamnocephalus platyurus) and chronic (Pseudokirchneriella subcapitata) toxicity, as well as for genotoxicity (Mutatox®). Bioassays were performed on soil water leachates and on soil solvent extracts to characterize not only the water soluble pollutants but also to evaluate less soluble pollutants or ...
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