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.
Whales and dolphins inhabit some of the largest and seemingly most pristine environments on Earth, from tropical coastlines to Antarctic waters. Yet even they cannot escape PFAS—persistent "forever chemicals" that leak from ...
Ecology
Jun 17, 2026
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Thai fisherman Somdet Singthong steered his metal skiff across the brown waters of the Mekong River, resigned to the pollution that has put his health and lifelong source of livelihood at risk.
Environment
Jun 16, 2026
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The emerging infectious bacterium Escherichia albertii has caused outbreaks of severe food poisoning and hospitalized people through contaminated water and foods, such as salad ingredients. Now, a new study from Osaka Metropolitan ...
Ecology
Jun 12, 2026
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A new study has found that plants may reveal recent PFAS contamination linked to airborne deposition that can go undetected in soil analyses. Conducted in agricultural fields near the conflict zone in southern Israel, the ...
Ecology
Jun 11, 2026
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The TEMPO mission helped scientists track morning nitrogen dioxide that contributed to afternoon ozone along the New York–Washington corridor in May 2026. More than 35 million people live along the New York–Washington corridor ...
Environment
Jun 11, 2026
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Ozone pollution has worsened in much of the continental United States over the past decade, fueled by wildfires and the long-distance transport of unhealthy air, according to a new study titled "Fires reverse progress toward ...
Earth Sciences
Jun 4, 2026
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When a person coughs or sneezes, they expel a cloud of microscopic particles capable of carrying viruses and bacteria that act as vectors for respiratory diseases such as flu, COVID-19 or tuberculosis. Understanding how these ...
Soft Matter
Jun 3, 2026
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As another heavy sargassum season unfolds, many beachgoers are asking the same question: Is it safe to be near it? A recent University of Miami study offers an evidence-based answer, particularly for children. Overall risks ...
Environment
Jun 1, 2026
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A new research review led by Griffith University suggests using human urine as a fertilizer could significantly boost sustainable agriculture—but key health risks and knowledge gaps must be addressed before it could be widely ...
Agriculture
May 26, 2026
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When people think about wildfires, they usually think about flames, smoke and evacuations. However, for many communities, some of the most important damage begins after the fire has passed.
Environment
May 23, 2026
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