pollution research Articles
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The evolution of children's ideas on pollution in the framework of experiential and socioconstructivist activities
In a polluted village, researchers identified the initial conceptions of students on pollution and on the relationship between pollution and health. They then provided the students with a conceptual change process based on experiential and socioconstructivist activities: fieldtrips, analysis of environmental stressors, experimentation of a health improvement plan, and environmental action. ...
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Research on prediction of tourists' quantity in Jiuzhaigou Valley scenic based on ABR@G integration model
As the uncertain changes of tourists' quantity have challenged scenic management, which affects the environmental pollution, many researches confirm that forecasting, which is the foundation of the tourists' management can provide guarantee of effective environment protection. Because the changes of tourists' quantity with complex characteristics of the linear and non–linear are mutually ...
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Eco-innovations and industrial organisation: a review of complementary explanations of unsustainable economic paths
Technological "lock-in" is a form of macrolevel "network" externality and thus a form of market failure. What it can imply is that firms in an industry maintain (and replace) capital stock which is technologically sub-optimal because of "quasi-irreversibilities": it is only privately optimal for one firm to shift its technological base if other firms in the industry follow suit. This form of ...
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Air pollution and health: Do popular portrayals reflect the scientific evidence?
Environmentalists, regulators, health scientists, and journalists are the main purveyors of information on air pollution health risks. Unfortunately, these groups create the appearance that harm from air pollution is much greater and more certain than suggested by the underlying evidence. The incentives in air pollution health research encourage risk exaggeration, because information purveyors ...
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Sorption of DOM and hydrophobic organic compounds onto sewage-based activated carbon
Treatment of stormwater via sorption has the potential to remove both colloidal and dissolved pollutants. Previous research shows that activated carbon produced from sewage sludge is very efficient in sorbing hydrophobic organic compounds (HOCs), frequently detected in stormwater. The aim of this research was to determine whether the presence of dissolved organic matter (DOM) has a negative ...
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Native, acidic pre-treated and composite clay efficiency for the adsorption of dicationic dye in aqueous medium
Environmental applications of composites have attracted the interests of researchers due to their excellent adsorption efficiency for pollutants. Native, HCl pre-treated clay and MnFe2O4/clay composite were investigated as an adsorbent for removal of methyl green from aqueous solution. The adsorption behaviors of dye onto native, HCl pre-treated and composite clays were studied as a function ...
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Understanding aqueous trace metal characteristics from industrial sources in China
Trace metals are a group of toxic pollutants that can cause serious damage to ecosystems and humans. To determine the distribution characteristics of aqueous trace metal contamination and identify critical pollution sources, it is necessary to develop a detailed estimation of trace metal emissions. By considering emission-related factors in each industrial sector, we estimate that the ...
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Environmental management: An agenda for action
A business agenda for sustainable development is described, where the main thrust is to be the manufacture of durable and recyclable goods by processes which minimize the production of waste and polluting emissions. This is to be achieved through education, research and innovation with a more open dialogue between producers and society.Keywords: recycling technology, sustainable development, ...
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TOC and TN Measurements of Seawater
For pollution control of the ocean and in the research of the ocean environment, the measurement of total organic carbon (TOC) is regarded as an important index of organic contaminants contained in seawater. At the same time, the measurement of total nitrogen (TN), which is known to cause eutrophication, is also attracting attention for environmental pollution control and in ecological ...
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Generation of mt:egfp transgenic zebrafish biosensor for the detection of aquatic zinc and cadmium
Zebrafish embryo toxicity test has become a popular method for detecting the environmental pollutions. But our research showed that zebrafish embryos exhibited no visible paramorphia, malformation or mortality when exposed to heavy metals in a range above the environmental standard limits, indicating that zebrafish embryo an imprecise model in monitoring environmental heavy metals ...
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Agricultural runoff contaminant discharge in Dianchi Valley agricultural district, China
release of pollutants in Agricultural Runoff (AR) from a plastic canopy (PC) region in eastern Dianchi Catchment of China was investigated. The daily variation coefficients of water quantity in 2002 and 2003 were 15.9 and 7.6 respectively. From May 2002 to September 2003, local farmland had discharge of 2.9?3.2 l m2 d1. Pollutant loads from research area to Dianchi Lake from October to April were ...
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Simulation of flow in an idealised city using various CFD codes
In the framework of the COST 732 action, several teams run models to verify the proposed Best Practice Guideline (Franke et al., 2007). The data set concerns the Mock Urban Setting Test (MUST) experiment, where wind field and dispersion measurements were conducted for an array of obstacles as a full-scale experiment, as well as in a wind tunnel. The pollutant transport research group at the ...
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Waterquality and meteorological data - Greece
Background Thesprotia is one of the 51 prefectures in Greece and is located in the North-West of the country, 479 km from the capital Athens. The population of the prefecture is around 46,000 people. In the Pindos-Mountains arises the riverKalamas and empties after 115 km in the bay of Valtos (Ionian Sea). The river has large environmental influence on the area and is also in some areas famous ...
By OTT HydroMet
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Cyst-Based Toxicity Tests. - VI. : Toxkits and Fluotox Tests as Cost-Effective Tools for Routine Toxicity Screening
Abstract : During the last two decades microbiotests have been developed which are independent of recruitement, maintenance and/or culturing of live stocks of test organisms. Culture and maintenance free microbiotests have been worked out in the Laboratory for Biological Research in Aquatic Pollution at the University of Ghent, with selected aquatic invertebrates. The new approach is based on the ...
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Clean Air Matters!
New research presents facts about the consequenses of polluted air, and PM2.5 in particular. Air pollution is causing 5 millions of premature deaths per year according to scientists. This means that 5 in 100 persons will die due to air pollution. ...
By OPSIS AB
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Inhibitory effect of thiourea on biological nitrification process and its eliminating method
Thiourea is a typical nitrification inhibitor that shows a strong inhibitory effect against the biological nitrification process. The 50% inhibitory concentration (IC50) of thiourea on nitrification was determined to be 0.088 mg g VSS−1, and nitrifiers recovered from the thiourea inhibition after it was completely degraded. The thiourea-degrading ability of the sludge system was improved to ...
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The Investigation of Noise Attenuation by Plants and the Corresponding Noise-Reducing Spectrum
As noise pollution is becoming more and more serious, many researchers are studying the noise attenuation effect provided by plants. This article examines six kinds of evergreens as research subjects so as to compare the different arrangements and densities of plants and their effect on noise attenuation. The authors studied the relationship between each of the plant’s characteristics (the ...
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Responses of the urban roadside trees to traffic environment
Purpose: The study is understand the relation between urban roadside tree growth and the traffic environment and an improvement to the traffic environment by using urban roadside trees. Design/methodology/approach: Eight common urban roadside trees subjected to many pollutants from automobile emissions were selected for research. The comparatively pollution-free parks far from the traffic ...
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Chemical Air Pollution in the Clinical Research Environment
There has been a revolution in awareness of chemical air pollution in research laboratories. I could tell you several 'horror stories' of casual exposure to mercury vapour, benzene and chromic acid (the ultimate glassware cleaning agent) among innocent biomedical PhD students (including myself) in the 1970s. But researchers in hospitals, and other laboratories can never afford to be complacent ...
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Micro-zooplankton grazing as a means of fecal bacteria removal in stormwater BMPs
A priority for environmental managers is control of stormwater runoff pollution, especially fecal microbial pollution. This research was designed to determine if fecal bacterial grazing by micro-zooplankton is a significant control on fecal bacteria in aquatic best management practices (BMPs); if grazing differs between a wet detention pond and a constructed wetland; and if environmental ...
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