History repeating.....NAC

[Kneale Brownson]

At 11:53 PM 03/17/2002 -0500, Ed Birch wrote:

>Phil Payne wrote......
> > > BTW Phil, there is a BIG difference in emissions between old Diesel
> > > pre-chamber design and TDI/CDI Turbo-Diesel technology!
> >
> > Precisely.  The particulates that are unique to the new turbodiesels are
>thought to be
> >the problem......
>
>I don't quite understand.  The older pre-chamber Diesels emitted smoke
>(particules) on a large scale, while TDI and CDI, along with low sulphur
>Diesel fuel, provides very little particules and great fuel mileage.  You're
>saying that studies show that a more fuel efficient, cleaner  burning Diesel
>engine, burning a cleaner fuel, less fuel, produces more dangerous
>emissions?

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.