[PCW] gas outboards

[Roger Bingham]

Pat Reischmann said:

The gas motor's emit a much more "noxious" odor called carbon monoxide.


It is, perhaps, more accurate to say- 

All internal combustion engines produce carbon monoxide but petrol engines
produce more carbon monoxide but much less soot than diesel engines.


Extract from UK Health & Safety Executive publication.

WHAT ARE DIESEL ENGINE EXHAUST EMISSIONS?
Diesel engine exhaust emissions (commonly known as 'diesel fumes') are a
mixture of gases, vapours, liquid aerosols and substances made up of
particles. They contain the products of combustion including:

carbon (soot); 
nitrogen; 
water; 
carbon monoxide; 
aldehydes; 
nitrogen dioxide; 
sulphur dioxide; 
polycyclic aromatic hydrocarbons.

The carbon particle or soot content varies from 60% to 80% depending on the
fuel used and the type of engine. Most of the contaminants are adsorbed onto
the soot. 


Regards

Roger Bingham
France