Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Spatial distribution for the shortest time (in days) particles spent to reach each location. Particles were resuspended from a) GM; b) EMS; c) CMSB; and d) WMS. Source stations indicated with red dots and the rest of the stations with blue dots. Colorbar shows time in days in a logarithmic scale.
