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From: kreg@epicen.UUCP (Kreg Martin)
Newsgroups: net.physics
Subject: Haze
Message-ID: <318@epicen.UUCP>
Date: Thu, 23-Jan-86 13:22:18 EST
Article-I.D.: epicen.318
Posted: Thu Jan 23 13:22:18 1986
Date-Received: Sat, 25-Jan-86 04:24:21 EST
Distribution: na
Organization: Entropic Processing, Inc., Cupertino, CA
Lines: 19

I'm a little confused about haze.  My question is this:  What, exactly,
is haze, and why is it so common.  I'm talking about the natural, non-
pollution related haze that is often in the air.  I'm not talking about
fog or clouds, which I know are composed of water droplets that have
condensed in air that has become super-saturated with water by the
cooling of moist air.

My guess would be that haze is composed of microscopic water particles,
much smaller than those in fog.  I can see that these could exist in air
that is close to 100% relative humidity, but wouldn't they quickly
evaporate if the air was any dryer?  I'm sure that it is not this humid
most of the time that I see haze in the air.  Haze often persists on
especially warm days, when surely the warming of the air drives the
relative humidity down.

Can anyone clear this mystery up for me?

		Kreg Martin
		ihnp4!pesnta!epicen!kreg