Table 6

Summary of measured volcanic CO2 fluxes and estimated global emissions (Mt/yr)

SourceMeasured CO2 fluxNo measuredNo global% globalEstimated Global CO2 fluxRef.
Volcanic plume passive degassing59.733~15022271[1]
Diffuse emissions from historically active volcanoes6.430~5505.5117[1]
Emissions from tectonic, hydrothermal or inactive volcanic areas66>66[1]
Volcanic lakes6.7327694.294[2]
MOR9797[3]
Total637
Total (no MOR)540
  • References:

  • [1] This work;

  • [2] Perez et al. (2011);

  • [3] Marty and Tolstikhin (1998)