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California formally petitions for zero-emissions locomotives
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<p>[quote user="RME"]I think you are dangerously ignorant of the physical characteristics of a substantial percentage of the actual emitted particulates from either light or heavy diesel engines, and by extension of the actual chemical nd physical processes that produce them.[/quote]</p> <p>I totally agree. The settling velocity depends on particle size. The time for 1 meter is about 3.3 minutes for PM10, 83 minutes for PM2.5, and 11.5 days for PM100nm. <br /><a href="http://sfrecpark.org/wp-content/uploads/PM-Tire4MichaelVestel071408.pdf">http://sfrecpark.org/wp-content/uploads/PM-Tire4MichaelVestel071408.pdf</a></p> <p>Here is a link to simulations that show how particulate matter from ship exhausts in the Enlish Channel moves around in Europe:<br /><a href="https://www.dkrz.de/about-en/media/galerie/Vis/regional/feinstaub?set_language=en&cl=en">https://www.dkrz.de/about-en/media/galerie/Vis/regional/feinstaub?set_language=en&cl=en</a><br />Regards, Volker</p>
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