Harzadous and non-Harzadous Gaseous Waste - (Jul/28/2008 )

Please list 5 harzadous gaseous waste and 5 non-harzadous one.

okay, I'll bite

harzadous gaseous waste
PH3
NF3
HF
ClF3
Cl2

Non harzadous gaseous waste
CO2
Ar
N2
water vapour

NO2 (well limited quantities)

hazardous - haggis farts