Results 251 to 260 of about 1,856,875 (295)

Urban air pollution—a diffusion equation model

Mathematical Biosciences, 1975
Abstract A mathematical model for the occurrence and diffusive propagation of air pollution in an urban air space is proposed. Using a Green's function of the proposed diffusion equation and a Poissonian emission process, a statistical analysis of the resulting density of air pollution is made.
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Dynamics of diffuse pollution from US southern watersheds

Water Research, 2001
To understand the effects of diffuse pollution information on the source of pollutants, quantities in transport, mode of transport, transient nature of the pollution event, and most importantly, a consideration of remediation efforts need to be known. For example, water quality research in the Yazoo Basin uplands in Mississippi has shown sediment loads
J D, Schreiber, R A, Rebich, C M, Cooper
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Spatial characterization of surface water vulnerability to diffuse pollution related to pesticide contamination: case of the Gimone watershed in France

Environmental science and pollution research international, 2021
Chaima Grimene, O. Mghirbi, S. Louvet, J. Bord, Philippe Le Grusse   +4 more
semanticscholar   +1 more source

Policy experience with groundwater protection from diffuse pollution – a review

, 2021
S. Foster, J. Chilton
semanticscholar   +1 more source

Pollution Diffusion Inspired Optimization Algorithm

With the increasing severity of marine ecological and environmental problems, the study of seawater pollution diffusion is not only of great significance to environmental science but also provides new inspiration for the design of optimization algorithms.
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Petits bassins ruraux et pollutions diffuses

1998
International ...
Penven, M.J., Muxart, T., Bartoli, F., Bonte, P., Brunstein, D., Cosandey, C., Gouy, V., Irace, S., Leviandier, T., Sogon, S.   +9 more
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Integrative oncology: Addressing the global challenges of cancer prevention and treatment

Ca-A Cancer Journal for Clinicians, 2022
Jun J Mao,, Msce, Lorenzo Cohen, Karen M Mustian   +2 more
exaly  

Anomalously hazardous conditions of pollutant diffusion

1991
A considerable deviation from the above logarithmic increase of wind speed with height (2.10) is observed under certain anomalous conditions in the lowest several hundred meters deep atmospheric layer. For example, a wind may be recorded only above a certain level below which down to the ground its speed is close to zero, (the condition of a calm ...
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Economic Growth and Pollution Diffusion

2023
Sebastian Aniţa, Vincenzo Capasso, Simone Scacchi   +2 more
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Modelling Diffusion and Dispersion of Pollutants

1995
Diffusion and dispersion processes in atmospheric turbulence naturally divide according to different time and space scales. It is common to distinguish scales of atmospheric motion according to: The Planetary Surface Layer Planetary Boundary Layer The Meso-γ scale (2–20 km) The Meso-β scale (20–200 km) The Meso-α scale (200 ...
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