Thursday, February 23, 2006
The Brown Cloud
Bicycling in the Brown Cloud. Digital Photograph. © 2006 Shawn Kielty. All rights reserved.
Today there's yet another hazardous day in the Phoenix metro, with unhealthy levels of PM-10, which you will all recognize as particulate matter with a size of 10 microns or smaller. I like to think of that as smog, but it could really just be dust. Frankly, it's ugly. They recommend alternate transportation to work, but not bicycling. Exercise outdoors is possibly not a good idea. Sensitive groups should reduce heavy breathing.