Fine Particles

Some articles on particles, fine particles:

Emissions Reduction - Pollutants
... Pollutants can be in the form of solid particles, liquid droplets, or gases ... matter (PM), atmospheric particulate matter, or fine particles, are tiny particles of solid or liquid suspended in a gas ... In contrast, aerosol refers to particles and the gas together ...
Valley Of Mexico - History of Human Habitation - Air Pollution
... The contamination problems that remain are primarily with ozone and fine particles (soot) (between 2.5 micrometers and 10 micrometers) ... to fifty percent of the time, Mexico City's levels of fine particles of ten micrometers, the most dangerous, exceed levels recommended by the World ... was due to sulfur emissions in the past, it is now due to fine particles in the air ...
Low-temperature Thermal Desorption - System Design - Rotary Dryer
... and does not require cooling before entering the baghouse where fine particles are trapped ... A disadvantage is that these particles may not have been decontaminated and are typically recycled to the dryer ... Purge gas first enters an afterburner to decontaminate the fine particles, then goes into a cooling unit prior to introduction into the baghouse ...
Alberta Taciuk Process - Technology
... Its feed consists of fine particles ... In its shale-oil applications, fine particles (less than 25 millimetres (1.0 in) in diameter) are fed into the preheat tubes of the retort, where they are dried and preheated to 250 °C (480 °F ... In the pyrolysis zone, oil shale particles are mixed with hot shale ash and the pyrolysis is performed at temperatures between 500 °C (930 °F) and 550 °C (1,020 ...
Hygiene in Space - Application of Astronautical Hygiene Principles To Control Exposure To Lunar Dust - Deposition of Inhaled Particles of Lunar Dust
... The extent of the inflammatory response in the lung will depend on where the lunar dust particles are deposited ... In 1G deposition in the more central airways will reduce the transport of the fine particles to the lung periphery ... On the Moon with fractional gravity, the inhaled fine particles will be deposited in more peripheral regions of the lung ...

Famous quotes containing the words particles and/or fine:

    “In another’s sentences the thought, though it may be immortal, is as it were embalmed, and does not strike you, but here it is so freshly living, even the body of it not having passed through the ordeal of death, that it stirs in the very extremities, and the smallest particles and pronouns are all alive with it. It is not simply dictionary it, yours or mine, but IT.”
    —Henry David Thoreau (1817–1862)

    “To stand on common ground
    here and there gritty with pebbles
    yet elsewhere ‘fine and mellow—
    uncommon fine for ploughing’
    there to labor
    planting the vegetable words”
    —Denise Levertov (b. 1923)