Source of Mystery Dust Explained

While results of test samples are still pending, AQMD offers an explanation for the layer of dirt found throughout parts of the San Gabriel Valley.

The mysterious layer of dirt that caked cars, muddled pools, and bewildered residents in the east San Gabriel Valley, may be solved.

AQMD received several complaints from residents in Glendora, Azusa, Covina and West Covina, who reported an usually thick layer of dust appearing on their cars, driveways, sidewalks and pools Wednesday morning.

AQMD gathered test samples from the mystery matter, and while lab results are still pending, an AQMD representative offered a likely explanation for the dust – wind.

While the Santa Ana winds battered parts of Los Angeles County Wednesday, the winds remained quiet in Glendora and surrounding communities. But the high winds – which blew as hard as 70 mph in the San Gabriel mountains in the early morning hours – picked up soil deposits, which settled to the foothill communities below, said Jill Whynot, Assistant Deputy Executive Officer Engineering for AQMD.

Whynot said that the recent wildfires in the Angeles National Forest may have created the loose, ash-like soil. 

Scott Rubel January 04, 2013 at 05:54 PM
This was so funny. In the morning the other day the top story in the Patch was high winds. The same afternoon the top story was mystery dust and nobody could figure it out. It may be interesting to discover what the dust is made of, but, really, this took the AQMD to come out? You could have just asked me.
Steven Hanson January 04, 2013 at 06:13 PM
I have dibs on Whome!
Denice Delgado January 04, 2013 at 06:23 PM
Amen! No joke. Hmmm.....thick dust and high winds? Doesn't take a rocket scientist to figure that one out. Glad the SGV communities were able to give the folks at the AQMD something to do for the day.
Paula Hansen January 05, 2013 at 12:17 AM
Thank you! Just vacuumed it up, from the bottom of our pool.
Bill Carr January 05, 2013 at 12:24 AM
The AQMD will find a reason to blame a mom and pop business the dust is being emitted from opening and closing there cash register drawer. The AQMD will close the business down because they don't meet the dust requirement for 2013.


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