I live on Nipomo Mesa. Like many other mesa residents, I have terrible lung congestion. Vehicles on Oceano Beach and Dunes disrupt the crust, releasing tiny (10 microns) particles, which are blown eastward.
Rather than the Air Pollution Control District studying this for another four years, stop the dune “vehicle recreation” right now.
This article appears in Sep 29 – Oct 6, 2011.