🚀 go-pugleaf

In article <1993Feb28.094430.113@sfpp.com> longo@sfpp.com (Bob Longo) writes:
>
>You [Steven Bjork] sound like an expert, so tell us why the number of days with 
>officially designated "unhealthful" air has declined so much in recent years?  
>Or is the smog actually still getting worse and the government is fooling us 
>all just so we can impress our friends around the world?

I am highly distrustful of "officially designated" unhealthful days.
The "polluters" [the last administration, them] have reason to manipulate
the figures to lower the number.  The environmentalists [tree-huggers, us]
have reason to raise the number.

Accordingly, I prefer numbers that are more independent.  Such as, a 
graph of the CO level, or the NO level, or ... for some suitably long
period of time.  My personal standard is number of days I can't see
the far side of the valley and number of days I can't see the near
side of the valley over the last 18 years.

By my standard, the air has been getting gradually cleaner.

Now WHY it has been getting cleaner is a different question.  Cars
have been getting cleaner but there are more miles driven.  Almost
all polluting industry has moved out of the Bay Area or has cleaned
up their act A LOT (I am thinking of Kaiser Cement).

And remember, due to wind patterns, San Francisco will be crystal
clear long before Gilroy.  Be careful where your measurements
are taken.

--
Mike Lipsie                            584 Castro #614, San Francisco, CA 94114
dosbears!mikel@pyramid.com
mikel%dosbears.uucp@ingres.com    Running rn (for DOS) with UUPC/Extended 1.11k