For molecular-sized particles to disperse around the entire planet, would they have to reach the stratosphere, or could air currents in the troposphere distribute them? Are particles dispersed somewhat equally or are they laid down according to what air current they are swept into?

  • $\begingroup$ jet stream could transport them as well. Depends on the season and depends on the location $\endgroup$
    – user1066
    Feb 23, 2019 at 11:28
  • $\begingroup$ blog.breezometer.com/how-air-pollution-moves-between-countries $\endgroup$
    – user1066
    Feb 23, 2019 at 11:45
  • $\begingroup$ Thank you for your help, gansub, especially the link. Do you know of any experiments made to test dispersion of particles via jet streams or other air currents? $\endgroup$
    – Galatea
    Feb 25, 2019 at 11:16
  • $\begingroup$ youtube.com/watch?v=lScO-zhMB2o - would this help ? and check the references in this question -earthscience.stackexchange.com/questions/6608/… $\endgroup$
    – user1066
    Feb 25, 2019 at 11:27
  • $\begingroup$ you need to give the particle size and the point of release or this will not be possible to answer. $\endgroup$ Feb 26, 2019 at 14:11


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