Contaminant transport refers to the physical and chemical processes governing the movement and fate of pollutants within environmental media such as groundwater, surface water, soil, and the atmosphere. It encompasses advection, dispersion, diffusion, sorption, volatilization, degradation, and transformation reactions that control contaminant distributions and concentrations over space and time. In research, contaminant transport is described by coupled partial differential equations derived from mass conservation, often incorporating multiphase flow, reactive transport, heterogeneity, and scale-dependent parameters. Accurate characterization and modeling of contaminant transport are critical for risk assessment, remediation design, and prediction of long-term contaminant plume evolution in engineered and natural systems.
A comprehensive study by the CritMET research group, led by Prof. Michael Bau, a geochemist at Constructor University in Bremen, provides evidence of widespread contamination of the North Sea and the Baltic Sea with MRI contrast ...
Environment
Nov 26, 2025
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A comprehensive Hungarian study has revealed that the behavior of pharmaceutical residues in soil does not depend on a single factor, but is shaped by several interacting processes. The researchers emphasized that, based ...
Environment
Nov 6, 2025
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Warming temperatures and increased precipitation in the Canadian High Arctic are mobilizing new pathways for subsurface contaminants to spread from more than 2,500 contaminated sites associated with industrial and military ...
Environment
Nov 6, 2025
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Pumpkins, squash, zucchini and their relatives accumulate soil pollutants in their edible parts. A Kobe University team has now identified the cause, making it possible to both make the produce safer and create plants that ...
Molecular & Computational biology
Oct 30, 2025
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89
A new method developed at the University of Warwick offers the first simple and predictive way to calculate how irregularly shaped nanoparticles—a dangerous class of airborne pollutant—move through the air.
General Physics
Oct 29, 2025
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Researchers at University of Tsukuba have identified the source and the factors affecting the radioactive cesium (137Cs) flow to the port of the Fukushima Daiichi Nuclear Power Plant via its drainage channels. Using tritium ...
Earth Sciences
Oct 24, 2025
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77
Scientists from the Department of Geography and Environmental Science at Queen Mary University of London have developed a simple model to show how buoyant plastic can settle through the water column and they predict it could ...
Earth Sciences
Oct 23, 2025
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51
Understanding how plastics flow from land to sea is essential for solving the growing problem of plastic pollution. Rivers play a key role as major transport pathways, and accurate monitoring technologies are urgently needed ...
Environment
Oct 20, 2025
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26
Plastic is ubiquitous in the modern world, and it's notorious for taking a long time to completely break down in the environment—if it ever does.
Bio & Medicine
Oct 17, 2025
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77
A group of man-made chemicals are accumulating across the River of Grass—raising questions about potential impacts to water quality and ongoing restoration efforts.
Environment
Oct 16, 2025
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