How much pollution does a volcano produce compared to the pollution created by humans?
First of all ‘pollution’ is a term coined by humans and DUE TO HUMANS. Volcanic eruption is a naturally occuring process and cannot be technically regarded as a polluting agent. The principal components of volcanic gases are water vapor (H2O), carbon dioxide (CO2), sulfur either as sulfur dioxide (SO2) (high-temperature volcanic gases) or hydrogen sulfide (H2S) (low-temperature volcanic gases), nitrogen, argon, helium, neon, methane, carbon monoxide and hydrogen. Other compounds detected in volcanic gases are oxygen (meteoric), HCl, HF, HBr, NOx, SF6, COS, and organic compounds. Exotic trace compounds include methyl mercury, halocarbons (including CFCs), and halogen oxide radicals. except water,noble gases hydrogen all others are pollutants Heavy polluting metals like cadmium, mercury, selenium are also emitted in lavas.
