History repeating....NAC.

[Ed Birch]

Kneale Brownson wrote....

> I have no knowledge regarding the fuel, engine output or the study, but
> it's possible the human respiratory system COULD screen out larger
> particulate pollution and not screen out a finer product.  Look at what
> happens when buildings are made airtight for HVAC efficiency and end up
> needing air exchange systems because nobody can spend any time in them
> without becoming ill.....

The problem with buildings with HVAV is air filter maintenance. If the
filtration system is not closely maintained bacteria can form to sicken
those working inside the building.

BTW, which of the two emissions is the more dangerous?  Diesel exhaust or
Gasoline exhaust?

Ed Birch....93-100S

(Where's my VW Lupo?)