Results 11 to 20 of about 86,169 (304)

Seasonal Variability of Resuspension

MATEC Web of Conferences, 2022
Particulate air pollution in cities is caused by a variety of sources. One of the less-studied contributors is wind-induced particle resuspension. As the wind speed increases, particles are removed from surfaces. These particles cause an increase in the total concentration in the air.
Linda, Jakub, Matušková, Klaudia, Uhlík, Ondřej, Pospíšil, Jiří, Apeltauer, Tomáš   +4 more
openaire   +4 more sources

Dust resuspension without saltation [PDF]

Journal of Geophysical Research: Atmospheres, 2000
Wind resuspension (or entrainment) provides a source of dust and contaminants for the atmosphere. Conventional wind erosion models parameterize dust resuspension flux with a threshold velocity or with a horizontal abrasion flux; in the absence of abrasion the models assume dust flux is transient only. Our experiments with an uncrusted, fine material at
Gwen A, Loosmore, James R, Hunt
openaire   +2 more sources

Human Health Risk Assessment of Heavy Metals in the Urban Road Dust of Zhengzhou Metropolis, China

Atmosphere, 2021
The goal of this research is to assess hazardous heavy metal levels in PM2.5 fractioned road dust in order to quantify the risk of inhalation and potential health effects. To accomplish this, Inductively Coupled Plasma Mass Spectroscopy (ICP-MS) was used
Muhammad Faisal, Zening Wu, Huiliang Wang, Zafar Hussain, Muhammad Imran Azam   +4 more
doaj   +1 more source

Observations of Suspended Particulate Matter Concentrations and Particle Size Distributions within a Macrotidal Estuary (Port Curtis Estuary, Australia)

Journal of Marine Science and Engineering, 2021
An understanding of suspended particulate matter (SPM) dynamics is of great importance to design awareness and management strategies of estuaries. Using a Laser In Situ Scattering and Transmissiometry (LISST) instrument, variations in suspended particle ...
Ryan J. K. Dunn, Jordan Glen, Hsin-Hui Lin, Sasha Zigic   +3 more
doaj   +1 more source

Shipboard measurements of sediment stability using a small annular flume—Core Mini Flume (CMF) [PDF]

, 2013
Estimates of bed stability in coastal environments are essential to physical, biological, and chemical investigations of cohesive sediments. The Core Mini Flume (CMF), a 200 mm diameter annular flume has been designed to undertake sediment stability ...
Couceiro, F., Couceiro, Fay, Fones, Gary, Thompson, C.E.L., Amos, C.L., Fones, G.R., Thompson, C. E. L., Amos, C. l.   +7 more
core   +1 more source

Summer Distribution of Total Suspended Matter Across the Baltic Sea

Frontiers in Marine Science, 2019
There are three optical in-water components that, besides water itself, govern the under-water light field: phytoplankton, total suspended matter (TSM), and colored dissolved organic matter (CDOM). In essence, it is the spectral absorption and scattering
Dmytro Kyryliuk, Susanne Kratzer
doaj   +1 more source

Input of particulate heavy metals from rivers and associated sedimentary deposits on the Gulf of Lion continental shelf [PDF]

, 2008
Fluxes of the heavy metals chromium (Cr), cobalt (Co), nickel (Ni), copper (Cu), lead (Pb), cadmium (Cd) and zinc (Zn) delivered by rivers to the Gulf of Lion (NW Mediterranean Sea) were estimated over a three year study of the River Rhone and its ...
Probst, Jean-Luc, Grenz, Christian, Ludwig, Wolfgang, Ollivier, Patrick, Radakovitch, Olivier, Roussiez, Vincent   +5 more
core   +1 more source

Assessing Unequal Airborne Exposure to Lead Associated With Race in the USA

GeoHealth, 2023
Recent research applied the United States Environmental Protection Agency's Chemical Speciation Network and Interagency Monitoring of Protected Visual Environments monitoring stations and observed that mean concentrations of atmospheric lead (Pb) in ...
Mark A. S. Laidlaw, Howard W. Mielke, Gabriel M. Filippelli   +2 more
doaj   +1 more source

X-ray radiography of viscous resuspension [PDF]

Physics of Fluids, 2019
We use X-ray imaging to study viscous resuspension. In a Taylor-Couette geometry, we shear an initially settled layer of spherical glass particles immersed in a Newtonian fluid and measure the local volume fraction profiles. In this configuration, the steady-state profiles are simply related to the normal viscosity defined in the framework of the ...
Saint-Michel, Brice, Manneville, Sébastien, Meeker, Steven, Ovarlez, Guillaume, Bodiguel, Hugues   +4 more
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Viscous resuspension of droplets [PDF]

Physical Review Fluids, 2022
Using absorbance measurements through a Couette cell containing an emulsion of buoyant droplets, volume fraction profiles are measured at various shear rates. These viscous resuspension experiments allow a direct determination of the normal stress in the vorticity direction in connection with the suspension balance model that has been developed for ...
Mehdi Maleki, Clément de Loubens, Hugues Bodiguel   +2 more
openaire   +3 more sources