Attached are plots of dust counts > .5 microns in particles per cubic foot.

Also attached are plots of dust counts for the two dust monitors at end Y, both > .3 microns and > .5 microns in particles per cubic foot over approximately four hours this evening ending at ~ 8:00 PM. They slowly increased and have remained high. I drove out to the end station to investigate, but did not notice anything to attribute it to.