Skip to main content

Table 1 Mean values and standard deviations for CO2 and H2O concentrations and for their ratios, as measured for each site. The sites were labelled in the first column (see the text for details): measurement PLB1 to PLB3 were taken at different heigth from the ground level. All the remaining measurement were taken at ground level.

From: Continuous in situ measurements of volcanic gases with a diode-laser-based spectrometer: CO2 and H2O concentration and soil degassing at Vulcano (Aeolian islands: Italy)

Site T/°C CO2/ppm H2O/ppm CO2/H2O
   Mean (error) st.dev. mean (error) st.dev. mean (error) st.dev.
Porto Levante Beach (2/8/04)
PLB1 26 769 (19) 240 39700 (400) 5600 0.0195 (5) 0.0058
PLB2 26 477 (13) 122 36200 (400) 3500 0.0132 (4) 0.0034
PLB3 26 450 (12) 115 34500 (400) 3600 0.0131 (3) 0.0032
Palizzi (26/8/04)
PAL1 26 384 (3) 40 25540 (80) 1140 0.0150 (1) 0.0016
PAL2 26 468 (3) 44 25830 (75) 1050 0.0182 (1) 0.0018
PAL3 24 564 (12) 120 23130 (75) 740 0.0244 (5) 0.0053
Fossa Grande (27/8/04)
FOG1 25 481 (24) 170 29000 (1000) 7500 0.0174 (12) 0.0090
FOG2 26 564 (15) 120 34300 (500) 3400 0.0165 (4) 0.0031
FOG3 29 541 (22) 200 35200 (2000) 19600 0.0195 (5) 0.0058
FOG4 26 505 (20) 173 30200 (900) 8000 0.0178 (3) 0.0074