Annual Average Global Emissions of HCl, HF, and HBr, in Tg
Source
\t
HCl HF HBr
Volcanoesn 7.8 0.4 0.078
Oceans 300 0.02 1
Coal combustion
\t
1.8 0.18 0.08
Petroleum combustion
\t0.013 0.00036
Natural gas combustion
.0022
natural gas plus petro plus coal doesnt equal 7.8 much less 150 times volcanos
thanx,
bill