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Old 07-19-2013, 06:21 PM   #256 (permalink)
UFO
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Quote:
Originally Posted by sheepdog 44 View Post
Is CO2 the worst thing that comes out of a cars exhaust? Yes there's Global warming, and a record high CO2 count.

But there's also:
CxHy (or Hx or HC) = Hydrocarbons
CO = Carbon monoxide
NOx = Nitrogen oxides
SO2 = Sulphur dioxide
PM = Particulate matter
And all the other toxic compounds (that i'm not informed enough to mention).

Which studies show contribute to acid rain, smog, asthma, cancer, autism etc.
These days with fuel injection, catalytic converters, particulate filters and EGR, yes, CO2 is by far the largest pollutant.
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